Source: https://docs.jmrp.io/phonometry/reference/conformance/ > **Auto-generated conformance report - do not hand-edit.** Produced by > `make conformance` from the library's own computations checked against the > referenced standards, and rendered from > [`docs/conformance.json`](https://github.com/jmrplens/phonometry/blob/main/docs/conformance.json), > which carries the same rows as data. CI regenerates it on every pull request > and fails if it is out of date, so edit the checks in > `scripts/conformance/domains/`, not this file. Each row pins a standard and clause to its expected normative value and > the value the library computes. Full standards list and methodology: > [Theory](https://github.com/jmrplens/phonometry/blob/main/docs/reference/theory/index.md) - > [Why phonometry](https://github.com/jmrplens/phonometry/blob/main/docs/start/why-phonometry.md). ## Numerical conformance report **1893/1893 conformance checks pass** across 111 domains and 523 standards - filters class 1 - weightings within IEC 61672-1 class 1. _{Δ is the difference between the computed value and the one the standard publishes. Used is how much of that clause's published tolerance the difference consumes: 100 % means it sits exactly on the limit, 5 % means it uses a twentieth of the allowance, and a dash means the clause states no two-sided tolerance for the quantity, so there is no budget to spend. It is reported and never used to decide a verdict, which is settled at full precision before any rounding. Each row pins a standard clause to its expected normative value and the value the library computes. Every section below is collapsible and stays collapsed while all of its rows pass; a section with any failing row opens automatically. Verdict marks. ![Pass][cv-pass] Pass · ![By design][cv-by-design] By design. Every mark travels with the verdict in words and never replaces it, so the verdict survives an image that never arrives; the silhouettes differ as much as the colours do, so a reader who cannot separate the hues can still tell them apart.} **The 10 checks closest to their published limit** _{The fraction of its published tolerance each check consumes. A high figure is not a failure: it is the room the check passes with, and it never decides the verdict, which is settled at full precision before any rounding. These are the rows a change is most likely to push over.} | Standard | Quantity | Computed | Δ | Used | |:---|:---|:---|:---|:---:| | ISO/TR 17534-3:2015 Table 3 | Ground-projected path length dp, m | 194.165 m | 0.005 m | 100 % | | DIN 4150-2:1999-06 Annex C, Example 5 | KB_FTr with hammer b) in the rest hours, Formula (5) | 0.195 | -0.005 | 100 % | | DIN 4150-2:1999-06 Annex C, Example 8 | KB_FTm over the record with the passage maxima alone | 0.3175 | -0.0005 | 100 % | | E DIN 4150-2:2023-08 Annex B, Table B.1 | KB_FTm,Zug of the metro north by Formula (5) | 0.0365 | -0.0005 | 100 % | | Jarvis (1996) NPL CIRA(EXT) 010 Appendix B, folio 26 | Volume of the coupler of the example, v = pi r^2 L | 2.53353e-07 m³ | -0.00000000005 m³ | 100 % | | Long 2e Table 14.9 (worked duct-borne sheet, supply path) | Fan to room, 8 octave bands -> 52/42/30/18/9/-2/-2/-1 dB at the receiver | 1 dB | 1 dB | 100 % | | ISO 11820:1996 Eq. (31) / VDI 2081 Blatt 2:2005-05 Tabelle 1, PDF page 12, folio 12 | The mean velocity in the passages of a splitter silencer carrying 16 000 m3/h, from the face velocity and the area ratio | 14.815 m/s | 0.005 m/s | 100 % | | E DIN 45672-3:2023-02 Annex C, Table C.1 | L_v at 4 Hz by Formula (1) | 28.8 dB | -0.1 dB | 100 % | | ISO 11820:1996 Table 1 | The printed table is a rounded version of the logarithmic subtraction and departs from it by under 0,35 dB | largest departure 0.349 dB | 0.3491 dB | 100 % | | IEC 60268-16 Annex M | Step 2 printed intermediates: the measurement condition, row by row | worst row: amf in dB, 0.99 of its last printed place | 0.993 | 99 % |

Numerical validation - filters & weightings: class showcase (IEC 61260-1 · IEC 61672-1 · ISO 7196)

**IEC 61260-1:2014 class per filter architecture** (order 6, one-third-octave, 100 Hz-10 kHz, fs = 48 kHz). For each architecture the table shows, at its *binding* band, the measured relative attenuation and the class-1 limit it must clear, so the number and the range it must sit in are both visible. A positive margin means the acceptance limits are met with that much room. | Architecture | Class verdict | Binding band | Measured rel. atten. | Class-1 limit | Margin cl.1 | Margin cl.2 | |:---|:---:|:---:|:---:|:---:|:---:|:---:| | butter | ![Pass][cv-pass] Class 1 (default) | 631 Hz | +0.00 dB | ≥ -0.40 dB | +0.400 dB | +0.600 dB | | cheby1 | ![By design][cv-by-design] By design (passband ripple) | 10000 Hz | +0.16 dB | ≥ +1.41 dB | -1.245 dB | -0.837 dB | | cheby2 | ![Pass][cv-pass] Class 1 | 631 Hz | +0.00 dB | ≥ -0.40 dB | +0.400 dB | +0.600 dB | | ellip | ![By design][cv-by-design] By design (passband ripple) | 10000 Hz | +0.10 dB | ≥ +1.32 dB | -1.218 dB | -0.813 dB | | bessel | ![By design][cv-by-design] By design (soft rolloff) | 10000 Hz | +9.82 dB | ≥ +10.62 dB | -0.799 dB | -0.045 dB | Only **Butterworth** (the library default) and **Chebyshev-II** are class-compliant architectures. Chebyshev-I and elliptic trade the mask for passband ripple, and Bessel for a maximally-flat group delay (soft rolloff); they cannot satisfy the IEC 61260-1 Class 1/2 attenuation mask by construction, so they are labelled *By design* - this is expected, not a failure or regression. **Frequency-weighting conformance** (A/C: IEC 61672-1 Table 3; G: ISO 7196 A.3). The *max deviation from nominal* is informational (it falls at a frequency extreme where the tolerance is widest and asymmetric); compliance is judged at the *binding* frequency - the one with the least headroom - where the deviation, the applicable tolerance band and the headroom are shown together. | Curve | fs | Max dev. from nominal (info) | Binding freq | Deviation there | Tolerance band | Headroom | |:---|:---:|:---:|:---:|:---:|:---:|:---:| | A | 48 kHz | +0.050 dB @ 158 Hz | 1000 Hz | +0.000 dB | [-0.70, +0.70] dB | +0.700 dB | | A | 96 kHz | +0.050 dB @ 158 Hz | 1000 Hz | +0.000 dB | [-0.70, +0.70] dB | +0.700 dB | | C | 48 kHz | -0.049 dB @ 13 Hz | 1000 Hz | +0.000 dB | [-0.70, +0.70] dB | +0.700 dB | | G | 48 kHz | +0.047 dB @ 1 Hz | 1 Hz | +0.047 dB | [-1.00, +1.00] dB | +0.953 dB |

Filters & weightings: 100% (19/19)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | IEC 61260-1:2014 Table 1 | Octave-band filter class (butterworth, fs=48 kHz) | class 1 | class 1 (margin +0.400 dB) | +0.400 dB | - | ![Pass][cv-pass] Pass | | IEC 61260-1:2014 Table 1 | One-third-octave filter class (butterworth, fs=48 kHz) | class 1 | class 1 (margin +0.400 dB) | +0.400 dB | - | ![Pass][cv-pass] Pass | | IEC 61260:1995 / ANSI S1.11-2004 Table 1 | Class 0 (strictest) octave-band filter (butterworth, fs=48 kHz) | class 0 | class 0 (margin +0.150 dB) | +0.150 dB | - | ![Pass][cv-pass] Pass | | IEC 61260:1995 4.5.3 and 5.4 | Octave Butterworth bank (fs=48 kHz, 125 Hz to 4 kHz): largest \|Delta B\| of equations (13), (14) and (16) within the class 0 +/-0.15 dB | class 0 (\|Delta B\| <= 0.15 dB) | class 0 (\|Delta B\| <= 0.050 dB) | +0.100 dB | - | ![Pass][cv-pass] Pass | | IEC 61260:1995 4.5.3 and 5.4 | One-third-octave Butterworth bank (fs=48 kHz, 125 Hz to 4 kHz): largest \|Delta B\| of equations (13), (14) and (16) within the class 0 +/-0.15 dB | class 0 (\|Delta B\| <= 0.15 dB) | class 0 (\|Delta B\| <= 0.050 dB) | +0.100 dB | - | ![Pass][cv-pass] Pass | | IEC 61260:1995 4.9 and 5.8 | Octave Butterworth bank (fs=48 kHz, 125 Hz to 4 kHz): summed outputs of equation (19), lowest to highest mid-band frequency, within the class 0 +/-1.0 dB | class 0 (-1.0 dB <= Delta P <= +1.0 dB) | class 0 (+0.000 dB to +0.164 dB) | +0.836 dB | - | ![Pass][cv-pass] Pass | | IEC 61260:1995 4.9 and 5.8 | One-third-octave Butterworth bank (fs=48 kHz, 125 Hz to 4 kHz): summed outputs of equation (19), lowest to highest mid-band frequency, within the class 0 +/-1.0 dB | class 0 (-1.0 dB <= Delta P <= +1.0 dB) | class 0 (+0.000 dB to +0.163 dB) | +0.837 dB | - | ![Pass][cv-pass] Pass | | IEC 61260:1995 equations (9) and (16) | Ideal octave band, S = 24, N = 5S: filter integrated response of the trapezoidal sum equals its hand sum interval by interval (closed form) | 0.000899 dB (+/-0 dB) | 0.000899 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | IEC 61260:1995 4.8 and 5.7 | Tones at the decimated sampling frequency minus the nominal mid-band frequency of the 20 Hz and 200 Hz bands of the default one-third-octave bank (fs=48 kHz), run through the bank: band output at least the +75 dB of class 0 below the input | 2/2 band outputs | 2/2 band outputs | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61260-1:2014 5.15 and Table 1 | Default octave bank at fs=16 kHz graded at its input rate, alias images of the decimated bands included: class 1 on Table 1 | class 1 | class 1 (margin +0.400 dB) | +0.400 dB | - | ![Pass][cv-pass] Pass | | IEC 651:1979 Table V (via BS 5969:1981) | Type 0 (strictest) A-weighting tolerance mask (fs=48 kHz) | Type 0 | Type 0 (margin +0.650 dB) | +0.650 dB | - | ![Pass][cv-pass] Pass | | IEC 651:1979 Table V (via BS 5969:1981) | Type 0 (strictest) C-weighting tolerance mask (fs=48 kHz) | Type 0 | Type 0 (margin +0.667 dB) | +0.667 dB | - | ![Pass][cv-pass] Pass | | IEC 61260-1:2014 Table F.1 | Formula (9) breakpoint mapping, b=3, Omega at G**(1/2) | 1.12202 (+/-0.00001) | 1.12202 | 0 | 31 % | ![Pass][cv-pass] Pass | | IEC 61672-1:2013 Table 3 | A-weighting deviation vs class-1 limits (fs=48 kHz) | deviation within limits @ 1000 Hz | +0.000 dB in [-0.70, +0.70] dB | headroom +0.700 dB | - | ![Pass][cv-pass] Pass | | IEC 61672-1:2013 Table 3 | C-weighting deviation vs class-1 limits (fs=48 kHz) | deviation within limits @ 1000 Hz | +0.000 dB in [-0.70, +0.70] dB | headroom +0.700 dB | - | ![Pass][cv-pass] Pass | | ISO 7196:1995 Table 2 / A.3 | G-weighting deviation vs +/-1 dB tolerance (fs=48 kHz) | deviation within limits @ 1 Hz | +0.047 dB in [-1.00, +1.00] dB | headroom +0.953 dB | - | ![Pass][cv-pass] Pass | | ANSI S1.4-1983 Tables IV/V | B-weighting (historical) deviation vs Type 0 limits (fs=48 kHz) | deviation within limits @ 200 Hz | -0.049 dB in [-0.70, +0.70] dB | headroom +0.651 dB | - | ![Pass][cv-pass] Pass | | IEC 61012:1990 Table 1 / 2.2 | AU-weighting deviation vs separate-unit tolerances (fs=96 kHz) | deviation within limits @ 158 Hz | +0.051 dB in [-1.00, +1.00] dB | headroom +0.949 dB | - | ![Pass][cv-pass] Pass | | IEC 537:1976 (withdrawn) via NASA CR-3406 Table SLD-I | D-weighting response vs the published tabulated curve (fs=48 kHz) | abs(response - table) <= 0.2 dB (0.45 dB at 1600/2500 Hz) | -0.281 dB @ 2500 Hz (bound 0.45 dB) | headroom +0.169 dB | - | ![Pass][cv-pass] Pass |

Band-filter pattern evaluation and periodic tests (IEC 61260-2, IEC 61260-3): 100% (36/36)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | IEC 61260-3:2016 Table C.1 | One-third-octave test frequency Omega_k, k = -7 (below the mid-band, Formulas (1), (2)) | 0.18546 (+/-0.00001) | 0.18546 | 0 | 34 % | ![Pass][cv-pass] Pass | | IEC 61260-3:2016 Table C.1 | One-third-octave test frequency Omega_k, k = -6 (below the mid-band, Formulas (1), (2)) | 0.32748 (+/-0.00001) | 0.32748 | 0 | 65 % | ![Pass][cv-pass] Pass | | IEC 61260-3:2016 Table C.1 | One-third-octave test frequency Omega_k, k = -5 (below the mid-band, Formulas (1), (2)) | 0.53143 (+/-0.00001) | 0.53143 | 0 | 69 % | ![Pass][cv-pass] Pass | | IEC 61260-3:2016 Table C.1 | One-third-octave test frequency Omega_k, k = -4 (below the mid-band, Formulas (1), (2)) | 0.77257 (+/-0.00001) | 0.77257 | 0 | 83 % | ![Pass][cv-pass] Pass | | IEC 61260-3:2016 Table C.1 | One-third-octave test frequency Omega_k, k = -3 (below the mid-band, Formulas (1), (2)) | 0.91958 (+/-0.00001) | 0.91958 | 0 | 66 % | ![Pass][cv-pass] Pass | | IEC 61260-3:2016 Table C.1 | One-third-octave test frequency Omega_k, k = -2 (below the mid-band, Formulas (1), (2)) | 0.94719 (+/-0.00001) | 0.94719 | 0 | 1 % | ![Pass][cv-pass] Pass | | IEC 61260-3:2016 Table C.1, C.2 | One-third-octave test frequency Omega_k, k = -1 (below the mid-band, Formulas (1), (2)) | 0.97402 (+/-0.00001) | 0.97402 | 0 | 26 % | ![Pass][cv-pass] Pass | | IEC 61260-3:2016 Table C.1 | One-third-octave test frequency Omega_k, k = 0 (at the mid-band, Formulas (1), (2)) | 1 (+/-0.00001) | 1 | 0 | 0 % | ![Pass][cv-pass] Pass | | IEC 61260-3:2016 Table C.1, C.2 | One-third-octave test frequency Omega_k, k = +1 (above the mid-band, Formulas (1), (2)) | 1.02667 (+/-0.00001) | 1.02667 | 0 | 87 % | ![Pass][cv-pass] Pass | | IEC 61260-3:2016 Table C.1 | One-third-octave test frequency Omega_k, k = +2 (above the mid-band, Formulas (1), (2)) | 1.05575 (+/-0.00001) | 1.05575 | 0 | 86 % | ![Pass][cv-pass] Pass | | IEC 61260-3:2016 Table C.1 | One-third-octave test frequency Omega_k, k = +3 (above the mid-band, Formulas (1), (2)) | 1.08746 (+/-0.00001) | 1.08746 | 0 | 63 % | ![Pass][cv-pass] Pass | | IEC 61260-3:2016 Table C.1 | One-third-octave test frequency Omega_k, k = +4 (above the mid-band, Formulas (1), (2)) | 1.29437 (+/-0.00001) | 1.29437 | 0 | 82 % | ![Pass][cv-pass] Pass | | IEC 61260-3:2016 Table C.1 | One-third-octave test frequency Omega_k, k = +5 (above the mid-band, Formulas (1), (2)) | 1.88173 (+/-0.00001) | 1.88173 | 0 | 47 % | ![Pass][cv-pass] Pass | | IEC 61260-3:2016 Table C.1 | One-third-octave test frequency Omega_k, k = +6 (above the mid-band, Formulas (1), (2)) | 3.05365 (+/-0.00001) | 3.05365 | 0 | 41 % | ![Pass][cv-pass] Pass | | IEC 61260-3:2016 Table C.1 | One-third-octave test frequency Omega_k, k = +7 (above the mid-band, Formulas (1), (2)) | 5.39195 (+/-0.00001) | 5.39195 | 0 | 27 % | ![Pass][cv-pass] Pass | | IEC 61260-3:2016 Table 1 | Acceptance limits on relative attenuation, 8 frequency parameters x 2 classes | 32/32 cells | 32/32 cells | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61260-1:2014 Table C.1 | Example 1: deviation +1.7 dB, U 0.3 dB against +1.0; -1.2 dB and 0.5 dB | No: Deviation exceeds acceptance limits | No: Deviation exceeds acceptance limits | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61260-1:2014 Table C.1 | Example 2: deviation +1.1 dB, U 0.3 dB against +1.0; -1.2 dB and 0.5 dB | No: Deviation exceeds acceptance limits | No: Deviation exceeds acceptance limits | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61260-1:2014 Table C.1 | Example 3: deviation +1.0 dB, U 0.3 dB against +1.0; -1.2 dB and 0.5 dB | Yes: Deviation within acceptance limits AND uncertainty within maximum-permitted | Yes: Deviation within acceptance limits AND uncertainty within maximum-permitted | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61260-1:2014 Table C.1 | Example 4: deviation +0.0 dB, U 0.3 dB against +1.0; -1.2 dB and 0.5 dB | Yes: Deviation within acceptance limits AND uncertainty within maximum-permitted | Yes: Deviation within acceptance limits AND uncertainty within maximum-permitted | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61260-1:2014 Table C.1 | Example 5: deviation +0.0 dB, U 0.9 dB against +1.0; -1.2 dB and 0.5 dB | No: Deviation within acceptance limits BUT uncertainty exceeds maximum-permitted | No: Deviation within acceptance limits BUT uncertainty exceeds maximum-permitted | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61260-1:2014 Table C.1 | Example 6: deviation -0.5 dB, U 0.3 dB against +1.0; -1.2 dB and 0.5 dB | Yes: Deviation within acceptance limits AND uncertainty within maximum-permitted | Yes: Deviation within acceptance limits AND uncertainty within maximum-permitted | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61260-1:2014 Table C.1 | Example 7: deviation -1.2 dB, U 0.3 dB against +1.0; -1.2 dB and 0.5 dB | Yes: Deviation within acceptance limits AND uncertainty within maximum-permitted | Yes: Deviation within acceptance limits AND uncertainty within maximum-permitted | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61260-1:2014 Table C.1 | Example 8: deviation -1.3 dB, U 0.3 dB against +1.0; -1.2 dB and 0.5 dB | No: Deviation exceeds acceptance limits | No: Deviation exceeds acceptance limits | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61260-1:2014 Table C.1 | Example 9: deviation -2.0 dB, U 0.3 dB against +1.0; -1.2 dB and 0.5 dB | No: Deviation exceeds acceptance limits | No: Deviation exceeds acceptance limits | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61260-1:2014 Table C.1 | Example 10: deviation -2.0 dB, U 0.7 dB against +1.0; -1.2 dB and 0.5 dB | No: Deviation exceeds acceptance limits AND uncertainty exceeds maximum-permitted | No: Deviation exceeds acceptance limits AND uncertainty exceeds maximum-permitted | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61260-2:2016 / IEC 61260-3:2016 Annex B, Formula (B.5) | Swept output level L_c of a one-third-octave filter (Formula (17) of IEC 61260-1) | 107.97 dB (+/-0.01 dB) | 107.97 dB | -0.001 dB | 20 % | ![Pass][cv-pass] Pass | | IEC 61260-2:2016 / IEC 61260-3:2016 A.3.5, Formula (A.2) | Standard uncertainty u_Lc of the swept output level | 0.057 dB (+/-0.001 dB) | 0.057 dB | 0 dB | 77 % | ![Pass][cv-pass] Pass | | IEC 61260-2:2016 / IEC 61260-3:2016 A.3.5 | Expanded uncertainty of the test signal (k = 2) | 0.115 dB (+/-0.001 dB) | 0.115 dB | 0 dB | 46 % | ![Pass][cv-pass] Pass | | IEC 61260-2:2016 / IEC 61260-3:2016 A.3.5 | Expanded uncertainty read on a 0.1 dB display (k = 2) | 0.128 dB (+/-0.001 dB) | 0.128 dB | 0 dB | 95 % | ![Pass][cv-pass] Pass | | IEC 61260-2:2016 Formula (2) / IEC 61260-1:2014 Formulas (15), (16) | Ideal octave band: Delta B = 10 lg(tanh(x/2)/(x/2)), x = ln G / (bS), S = 24 (closed form) | -0.0003 dB (+/-0 dB) | -0.0003 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | IEC 61260-2:2016 Formula (3) | Ideal bank: summed outputs restore the input inside a band and on its edges (closed form) | 0 dB (+/-0 dB) | max \|Delta P\| below 1e-12 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | IEC 61260-1:2014 5.12.2 / IEC 61260-2:2016 7.2.3 | One-third-octave Butterworth bank (fs=48 kHz): largest \|Delta B\| within the class 1 +/-0.4 dB | class 1 (\|Delta B\| <= 0.4 dB) | class 1 (\|Delta B\| <= 0.049 dB) | +0.351 dB | - | ![Pass][cv-pass] Pass | | IEC 61260-1:2014 5.16 / IEC 61260-2:2016 7.2.4 | One-third-octave Butterworth bank (fs=48 kHz): summed outputs within the class 1 +0.8/-1.8 dB | class 1 (-1.8 dB <= Delta P <= +0.8 dB) | class 1 (+0.000 dB to +0.248 dB) | +0.552 dB | - | ![Pass][cv-pass] Pass | | IEC 61260-1:2014 5.14.3 / IEC 61260-2:2016 7.4 | One-third-octave multirate bank swept at 2 and 5 s per decade: \|L_out - L_c\| within class 1 +/-0.4 dB | class 1 (\|L_out - L_c\| <= 0.4 dB) | class 1 (\|L_out - L_c\| <= 0.049 dB) | +0.351 dB | - | ![Pass][cv-pass] Pass | | IEC 61260-1:2014 Annex G, G.2.8 | Swept deviation of a time-invariant band equals its effective bandwidth deviation | 0 dB (+/-0.01 dB) | max \|(L_out - L_c) - Delta B\| 0.0001 dB | 0.0001 dB | 1 % | ![Pass][cv-pass] Pass |

Humid air (IEC 61094-2:2009 Annex F): 100% (3/3)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | IEC 61094-2:2009 Table F.1 | Set A (23 C, 101 325 Pa, 50 % RH): rho, c0, kappa, eta and alpha_t, as a fraction of the rounding of the last printed figure | 0 (+/-1) | 0.549 | 0.549 | 55 % | ![Pass][cv-pass] Pass | | IEC 61094-2:2009 Table F.1 | Set B (20 C, 80 000 Pa, 65 % RH): rho, c0, kappa, eta and alpha_t, as a fraction of the rounding of the last printed figure | 0 (+/-1) | 0.96 | 0.96 | 96 % | ![Pass][cv-pass] Pass | | IEC 61094-2:2009 Formula (F.5) | Thermal conductivity and specific heat capacity close the printed thermal diffusivity, alpha_t = k_a / (rho C_P) | 0.000021153 m²/s (+/-1e-10%) | 0.000021153 m²/s | 0 m²/s | 0 % | ![Pass][cv-pass] Pass |

Sea water (Ainslie 2010): 100% (3/3)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | Ainslie (2010) Eq. (4.6), printed folio 127 | Density of the standard ocean: 10 C, salinity 35, at the surface | 1027 kg/m³ (+/-0.5 kg/m³) | 1027.0439 kg/m³ | 0.0439 kg/m³ | 9 % | ![Pass][cv-pass] Pass | | Ainslie (2010) Eq. (4.11), printed folio 128 | Absolute static pressure at the surface is one atmosphere, not zero | 101989.16 Pa (+/-0 Pa) | 101989.16 Pa | 0 Pa | 0 % | ![Pass][cv-pass] Pass | | Ainslie (2010) Eq. (4.6) vs printed folio 177 | The pressure term the book's own folio 177 drops: 4,3e-7 per pascal times one atmosphere | 0.0438549 kg/m³ (+/-0 kg/m³) | 0.0438549 kg/m³ | 0 kg/m³ | 0 % | ![Pass][cv-pass] Pass |

Levels & dosimetry: 100% (29/29)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | IEC 61672-1:2013 (Leq) | Leq of a 1 Pa 1 kHz sine | 90.97 dB (+/-0.05 dB) | 90.969 dB | -0.001 dB | 2 % | ![Pass][cv-pass] Pass | | IEC 61252:1993 (LEX,8h) | 8 h exposure to 90 dB(A) noise | 90 dB (+/-0.05 dB) | 89.999 dB | -0.001 dB | 2 % | ![Pass][cv-pass] Pass | | ISO 1996-1:2016 3.6.4 | Lden, constant 60 dB in day/evening/night | 66.3952 dB (+/-0 dB) | 66.3952 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 1996-2:2007 Annex C.5 Example 1 | Tonal audibility ΔLta (Formula C.3), 4 kHz tone | 13.7 dB (+/-0.05 dB) | 13.66 dB | -0.044 dB | 88 % | ![Pass][cv-pass] Pass | | ISO 1996-2:2007 Annex C.5 Example 1 | Tonal adjustment Kt (Formulae C.4-C.6) | 6 dB (+/-0 dB) | 6 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 1996-2:2017 Annex G.2 | Combined measurement uncertainty u = √(Σ(cj·uj)²) | 2.18 dB (+/-0.01 dB) | 2.18 dB | -0.002 dB | 20 % | ![Pass][cv-pass] Pass | | RD 1367/2007 Annex IV A.3.4.2 b | Corrected period level LKeq,d (Manual Ejemplo 3.1: 3 noise phases, 12 h) | 57 dB (+/-0 dB) | 57 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | RD 1367/2007 Annex I A.2 d | Long-term level LK,d (Manual Ejemplo 3.2: 303 operating days of 365) | 56 dB (+/-0 dB) | 56 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | RD 1367/2007 Annex III Table B1, Article 25 | Activity verdict (Manual Ejemplo 3.3: area type a, LK,d 56 dB over 55 dB) | phase and daily pass, annual fails, activity not compliant | phase and daily pass, annual fails, activity not compliant | - | - | ![Pass][cv-pass] Pass | | ISO 1683:2015 Table 1 | Reference sound pressure, air and other gases (20 µPa) | 20 µPa = 2e-05 Pa | 2e-05 Pa (20 µPa) | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 1683:2015 Table 1 | Reference sound exposure, air and other gases ((20 µPa)² s) | (20 µPa)² s = 4e-10 Pa²·s | 4e-10 Pa²·s ((20 µPa)² s) | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 1683:2015 Table 1 | Reference sound power, air and other gases (1 pW) | 1 pW = 1e-12 W | 1e-12 W (1 pW) | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 1683:2015 Table 1 | Reference sound energy, air and other gases (1 pJ) | 1 pJ = 1e-12 J | 1e-12 J (1 pJ) | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 1683:2015 Table 1 | Reference sound intensity, air and other gases (1 pW/m²) | 1 pW/m² = 1e-12 W/m² | 1e-12 W/m² (1 pW/m²) | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 1683:2015 Table 2 | Reference sound pressure, water and other liquids (1 µPa) | 1 µPa = 1e-06 Pa | 1e-06 Pa (1 µPa) | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 1683:2015 Table 2 | Reference sound exposure, water and other liquids (1 µPa² s) | 1 µPa² s = 1e-12 Pa²·s | 1e-12 Pa²·s (1 µPa² s) | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 1683:2015 Table 2 | Reference sound power, water and other liquids (1 pW) | 1 pW = 1e-12 W | 1e-12 W (1 pW) | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 1683:2015 Table 2 | Reference sound energy, water and other liquids (1 pJ) | 1 pJ = 1e-12 J | 1e-12 J (1 pJ) | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 1683:2015 Table 2 | Reference sound intensity, water and other liquids (1 pW/m²) | 1 pW/m² = 1e-12 W/m² | 1e-12 W/m² (1 pW/m²) | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 1683:2015 Table 2 | Reference sound particle displacement, liquids (1 pm) | 1 pm = 1e-12 m | 1e-12 m (1 pm) | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 1683:2015 Table 2 | Reference sound particle velocity, liquids (1 nm/s) | 1 nm/s = 1e-09 m/s | 1e-09 m/s (1 nm/s) | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 1683:2015 Table 2 | Reference sound particle acceleration, liquids (1 µm/s²) | 1 µm/s² = 1e-06 m/s² | 1e-06 m/s² (1 µm/s²) | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 1683:2015 Table 2 | Reference distance for compound quantities, liquids (1 m) | 1 m | 1 m | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 1683:2015 Table 3 | Reference vibratory displacement (1 pm) | 1 pm = 1e-12 m | 1e-12 m (1 pm) | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 1683:2015 Table 3 | Reference vibratory velocity (1 nm/s) | 1 nm/s = 1e-09 m/s | 1e-09 m/s (1 nm/s) | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 1683:2015 Table 3 | Reference vibratory acceleration (1 µm/s²) | 1 µm/s² = 1e-06 m/s² | 1e-06 m/s² (1 µm/s²) | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 1683:2015 Table 3 | Reference vibratory force (1 µN) | 1 µN = 1e-06 N | 1e-06 N (1 µN) | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 1683:2015 Table 3, note b | Alternative vibratory velocity for structure-borne sound (50 nm/s) | 50 nm/s = 5e-08 m/s | 5e-08 m/s (50 nm/s) | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 1683:2015 Table 2, note b | Level re 1 µPa minus level re 20 µPa, 10 lg(20²/1²), printed ≈ 26.0 dB | 26 dB (+/-0.05 dB) | 26.02 dB | 0.021 dB | 42 % | ![Pass][cv-pass] Pass |

Room & building acoustics: 100% (160/160)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | CTE DB-HR Annex A, Formula (A.5) | Global index R'A for pink noise (Manual Ejemplo 7.2) | 51.4 dBA (+/-0.05 dBA) | 51.4 dBA | 0 dBA | 0 % | ![Pass][cv-pass] Pass | | CTE DB-HR Annex A, Formula (A.6) | Global index D2m,nT,Atr for road traffic (Manual Ejercicio 7.1) | 32.8 dBA (+/-0.05 dBA) | 32.8 dBA | 0 dBA | 0 % | ![Pass][cv-pass] Pass | | Manual de acústica ambiental y arquitectónica, Ejemplo 7.1 | Reported R'A of the field-test wall (printed 51 dBA = R'w 52 + C -1) | 51 dBA (+/-0 dBA) | 51 dBA | 0 dBA | 0 % | ![Pass][cv-pass] Pass | | Manual de acústica ambiental y arquitectónica, Ejemplo 7.1 | Reported R'A,tr of the same wall (printed 47 dBA = R'w 52 + Ctr -5) | 47 dBA (+/-0 dBA) | 47 dBA | 0 dBA | 0 % | ![Pass][cv-pass] Pass | | CTE Catálogo de Elementos Constructivos | Window size correction of RA (Manual Ejemplo 7.4: 4 m2 window, -2 dB) | 24 dBA (+/-0 dBA) | 24 dBA | 0 dBA | 0 % | ![Pass][cv-pass] Pass | | ISO 3382-2:2008 5.3.3 | T30 from a synthetic exponential decay (T=1.0 s) | 1 s (+/-1%) | 1 s | 0 s | 0 % | ![Pass][cv-pass] Pass | | ISO 3382-1:2009 Annex A (informative) Eq. (A.1) | Sound strength of a response scaled against its free-field reference | 6.0206 dB (+/-0 dB) | 6.0206 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 3382-1:2009 Annex A (informative) Eq. (A.2) | Sound pressure exposure level of a 1 Pa burst held for 0,5 s | 90.9691 dB (+/-0 dB) | 90.9691 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 3382-1:2009 Annex A (informative) A.2.1 | A calibration shared by both responses cancels out of G | 0 dB shift (+/-1e-09 dB) | max shift over 6 bands below 1e-12 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 3382-1:2009 Annex A (informative) Eqs. (A.4)/(A.8) | Free-field reference referred from 5 m to 10 m | -6.0206 dB (+/-0 dB) | -6.0206 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 3382-1:2009 Annex A (informative) Eq. (A.5) | Reverberation-room reference level, A = 0,16 V/T = 10 m2 | 53 dB (+/-0 dB) | 53 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 3382-1:2009 Annex A (informative) Eqs. (A.5)/(A.9) | The two printed routes to G span the 0,0206 dB their integers force | 0.0206 dB (+/-0 dB) | 0.0206 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 3382-1:2009 Annex A (informative) A.2.1 note | Energy mean of a cosine directivity over a full turn | -3.0103 dB (+/-0 dB) | -3.0103 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 3382-1:2009 Annex A (informative) Eq. (A.14) | Early lateral energy fraction of one reflection at 45 degrees | 0.1 (+/-0) | 0.1 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 3382-1:2009 Annex A (informative) Eq. (A.15) | Cosine-weighted lateral fraction of two mirror-image reflections | 0.235702 (+/-0) | 0.235702 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 3382-1:2009 Annex A (informative) Eq. (A.16) | Late lateral sound level of one arrival past the early window | -12.0412 dB (+/-0 dB) | -12.0412 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 3382-1:2009 Annex A (informative) Eq. (A.17) | Energy average of the four late lateral octave bands | 2.43038 dB (+/-0 dB) | 2.43038 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 3382-1:2009 Annex B (informative) Eqs. (B.1)/(B.2) | Interaural correlation of two channels in anti-phase | IACC = 1; min IACF = -1 | IACC = 1; min IACF = -1 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 3382-1:2009 Annex C (informative) Eqs. (C.1)/(C.2) | Stage support of one arrival in each printed window | ST_Early = -13.9794 dB; ST_Late = -20 dB | ST_Early = -13.9794 dB; ST_Late = -20 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 3382-1:2009 C.2.4 | The two printed stage-support standard deviations close on 12 readings | 0.3 dB (+/-0 dB) | 1 dB / sqrt(12) = 0.2887 dB -> 0.3 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 3382-1:2009 Eq. (5) | Standard deviation of T30, 2 s in the 1 kHz octave, n = 10, N = 12 | 0.00904449 s (+/-0 s) | 0.00904449 s | 0 s | 0 % | ![Pass][cv-pass] Pass | | ISO 3382-1:2009 Eqs. (4)/(5) | The two evaluation ranges differ by the printed 0,88/0,55 and decay terms | 1.62617479 (+/-0) | 1.62617479 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 3382-1:2009 Eqs. (6)/(7) | Shortest reliable decay time of a 125 Hz octave forward analysis | 0.180282 s (+/-0 s) | 0.180282 s | 0 s | 0 % | ![Pass][cv-pass] Pass | | ISO 3382-1:2009 Table A.1 | The single number of each quantity averages the bands the table names | G_m = 0.45; J_LFm = 0.35 | G_m = 0.45; J_LFm = 0.35 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 3382-1:2009 Table A.1 footnote a | Only the late lateral level is energy averaged, and it differs | -3.532403 dB (+/-0 dB) | -3.5324 dB, against -6.5000 dB arithmetic | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 3382-1:2009 Table A.2 | Minimum receiver positions at the three printed hall sizes | 500 seats = 6; 1000 seats = 8; 2000 seats = 10 | 500 seats = 6; 1000 seats = 8; 2000 seats = 10 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 3382-1:2009 4.2.1 | A gliding directivity survey references the whole-turn energy mean | 1 (+/-1e-09) | 1 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 3382-1:2009 Clause 9.1 | A one-third-octave fiche averages the six bands, not two of them | band 1 = 400 Hz; band 2 = 500 Hz; band 3 = 630 Hz; band 4 = 800 Hz; band 5 = 1000 Hz; band 6 = 1250 Hz | band 1 = 400 Hz; band 2 = 500 Hz; band 3 = 630 Hz; band 4 = 800 Hz; band 5 = 1000 Hz; band 6 = 1250 Hz | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 18233:2006 (swept-sine method) | Sweep deconvolution recovers a known IIR response | 0 dB in-band error (+/-0.1 dB) | 0.0006 dB | 0.0006 dB | 1 % | ![Pass][cv-pass] Pass | | ISO 717-1 Annex C, Table C.1 | Weighted sound reduction index Rw (C;Ctr) | Rw 30 (C -2; Ctr -3) | Rw 30 (C -2; Ctr -3), unfavourable sum 31.8 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 717-1:2020 Annex C, Table C.2 | Enlarged range 50-5000 Hz: Rw (C; Ctr; C50-5000; Ctr,50-5000) | Rw 30 (C -2; Ctr -3; C50-5000 -2; Ctr,50-5000 -4) | Rw 30 (C -2; Ctr -3; C50-5000 -2; Ctr,50-5000 -4) | exact | - | ![Pass][cv-pass] Pass | | ISO 717-2 Annex C, Table C.1 | Weighted impact sound pressure level Ln,w (CI) | Ln,w 79 (CI -11; sum 28.0 dB) | Ln,w 79 (CI -11; sum 28.0 dB) | +0 dB | - | ![Pass][cv-pass] Pass | | ISO 717-2 Annex C, Table C.1 (covered) | Weighted impact level of the floor WITH covering Ln,w (CI) | Ln,w 64 (CI -3; sum 30.0 dB) | Ln,w 64 (CI -3; sum 30.0 dB) | +0 dB | - | ![Pass][cv-pass] Pass | | ISO 717-2 Annex C, Table C.2 | Floor-covering improvement ΔLw and CI,Δ (Formulae (2)/(A.4); CI,Δ from the normative Table 4 floor, not the 2020 print's misprinted C.2 chain) | ΔLw 15 dB; CI,Δ -9 dB (Table 4 reference floor) | ΔLw 15 dB; CI,Δ -9 dB | +0 dB | - | ![Pass][cv-pass] Pass | | ISO 354:2003 Eq. 5/8 | Sabine inversion recovers absorption area | 9.212828 m² (+/-0 m²) | 9.212828 m² | 0 m² | 0 % | ![Pass][cv-pass] Pass | | ISO 3382-3:2012 Clause 6.2 | Open-plan spatial decay rate D2,S (-6 dB/doubling) | 6 dB (+/-0 dB) | 6 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 16283-3:2016 Clause 3.12 | Facade R'45 isolates the -1.5 dB incidence correction (S=A) | 38.5 dB (+/-0 dB) | 38.5 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 16283-1:2014 Clause 8.1 / -2:2020 Clause 8.1 / -3:2016 Clause 7.3.1 | Low-frequency trigger: V < 25 m³ to the nearest cubic metre | 7/7 room volumes on either side of 25 m³ | 7/7 room volumes on either side of 25 m³ | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 16283-1:2014 Clause 5 / -2:2020 Clause 5.1 / -3:2016 Clause 5 | Low-frequency band set is 50 Hz, 63 Hz and 80 Hz | band 1 = 50 Hz; band 2 = 63 Hz; band 3 = 80 Hz | band 1 = 50 Hz; band 2 = 63 Hz; band 3 = 80 Hz | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 16283-1:2014 Formula (12) / -2:2020 Formula (15) | Corner level is the highest corner per band, energy-averaged over q | Formula (12) over q = 2 positions (closed form) | max deviation 0.000000000 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 16283-1:2014 Formula (13) / -2:2020 (16) / -3:2016 (5) | L_LF combines the corner and default levels one third to two thirds | the printed Formula (13) (closed form) | max deviation 0.000000000 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 16283-1:2014 Formula (13) / -2:2020 (16) / -3:2016 (5) | L_LF degenerates to L when the corner level equals it | L_LF = L for L_Corner = L (closed form) | max deviation 0.000000000000 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 16283-1:2014 Formula (13) / -2:2020 (16) / -3:2016 (5) | L_LF floor at 10 lg(2/3) below L as the corners fall silent | 48.239087 dB (+/-1e-09 dB, closed form) | 48.239087 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 16283-1:2014 Formula (13) / -2:2020 (16) / -3:2016 (5) | L_LF rises strictly with the corner level, over 80 dB of it | 400/400 steps rising with the corner level (closed form) | 400/400 steps rising with the corner level | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 16283-1:2014 Clause 10.4 / -2:2020 Clause 10.4 / -3:2016 Clause 8.4 | 63 Hz octave T replaces exactly the 50 Hz, 63 Hz and 80 Hz bands | 5/5 reverberation-time bands | 5/5 reverberation-time bands | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 16283-1:2014 (13) / -2:2020 (16) / -3:2016 (5) | Airborne, impact and facade run one low-frequency implementation | 3/3 parts reaching the same L_LF | 3/3 parts reaching the same L_LF | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 10140-2:2010 Formula (2) | Lab airborne R on the ISO 717-1 reference shape -> Rw = 54 | Rw 54 dB | Rw 54 dB | +0 dB | - | ![Pass][cv-pass] Pass | | ISO 717-1:2020 Annex E, Table E.1 | Standard basic elements: printed Rw and eight adaptation terms of all three | 27/27 printed single numbers | 27/27 printed single numbers | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 717-1:2020 Annex E, Table E.1 | Standard basic elements to one decimal place (the printed values in parentheses) | 27/27 printed single numbers | 27/27 printed single numbers | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 717-2:2020 Table 4 | Reference floors: printed Ln,r,0,w (CI) of the heavyweight and both lightweight curves | 6/6 printed single numbers | 6/6 printed single numbers | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 717-2:2020 Table 4 | Reference floors to one decimal: 77,6 (-10,3), 71,8 (0,0) and 75,0 (-2,8) | 6/6 printed single numbers | 6/6 printed single numbers | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 717-1:2020 Annex E, Table E.1 | Standard basic elements: the 63 band values of the three curves as printed | 63/63 printed band values | 63/63 printed band values | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 717-2:2020 Table 4 | Reference floors: the 48 band values of the three printed columns, floors No 1 and No 2 both on the shared one | 48/48 printed band values | 48/48 printed band values | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 717-1:2020 Annex D, Formulas (D.3) and (D.4) | Lining on the heavy wall with Rref,with on the Table 3 shape + 20 dB -> ΔRw = 21 | 21 dB (+/-0 dB) | 21 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 717-2:2020 Clauses 5 and 6, Formulas (A.4) and (A.6) | Sloped ΔL on each of the four reference floors -> ΔLw or ΔLt,n,w and CIΔ, rated independently: 20 (-10), 6 (-1), 6 (-1), 11 (-3) | 8/8 single numbers | 8/8 single numbers | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 717-1:2020 Annex D, Formulas (D.3) and (D.4) | Two non-flat ΔR on each standard element -> ΔRw, Δ(Rw + C), Δ(Rw + Ctr) and the six enlarged-range terms, rated independently | 54/54 single numbers | 54/54 single numbers | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 717-1:2020 Formula (D.2) | Direct differences of a sloped lining on a measured wall: ΔRw,direct = 6, Δ(Rw + C)direct = 5, Δ(Rw + Ctr)direct = 3 | 6 dB / 5 dB / 3 dB | 6 dB / 5 dB / 3 dB | exact | - | ![Pass][cv-pass] Pass | | ISO 10140-1:2021 Formula (H.1) | ISO 717-2 Table C.2 improvement through the Annex H front end -> ΔLw = 15 as printed, CIΔ = -9 from the Table 4 floor (the print's C.2 chain gives -8) | ΔLw = 15 dB, CIΔ = -9 dB | ΔLw = 15 dB, CIΔ = -9 dB | exact | - | ![Pass][cv-pass] Pass | | ISO 10140-1:2021 G.4 | Curing example: two measurements within 1 d may start 3 d after construction; on the same bound, 2,1 d after 6,3 d passes too | 3 d passes, 2,9 d fails, 6,3 d with 2,1 d passes | 3 d passes, 2,9 d fails, 6,3 d with 2,1 d passes | exact | - | ![Pass][cv-pass] Pass | | ISO 10140-1:2021 Table K.2 | The 18 C_j are the IEC 61672-1 A-weighting at the exact midband frequencies of the nominal bands, to 0,1 dB | 18/18 bands | 18/18 bands | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 10140-1:2021 Formula (K.2) with Table K.2 | Flat LI = 50 dB in the 18 bands -> LIA = 50 + 10 lg sum 10^(0,1 C_j), printed C_j | 60.997267 dB (+/-0 dB) | 60.997267 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 10140-1:2021 Formula (K.1) | Rain in a 100 m³ room, T = 2 s, Se = 4 m²: LI = Lpr - 10 lg 2 + 10 lg 100 - 14 - 10 lg 4 | 56.9691 dB (+/-0 dB) | 56.9691 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 10140-1:2021 Formula (K.4) | Direct intensity over Sm = 4 m² of a 1 m² specimen: LI = LIm + 10 lg 4 | 56.0206 dB (+/-0 dB) | 56.0206 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 10140-1:2021 Formula (J.1) | A 5,4 m joint, L1 - L2 = 37 dB over A = 8 m2: Rs = 37 + 10 lg(1 m2 x 5,4 m / (8 m2 x 1 m)) | 35.293038 dB (+/-0 dB) | 35.293038 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 10140-1:2021 Formula (J.2) with ISO 10140-2:2021 A.3 | The fixed 1,3 dB below a 6 dB margin over Rs,max is Formula (J.2) at 6 dB, to the printed decimal | 1.3 dB at and below a 6 dB margin | Formula (J.2) at 6 dB 1.3 dB, applied below 1.3 dB | exact | - | ![Pass][cv-pass] Pass | | ISO 10140-1:2021 J.1 | R's within 3 dB of Rs,max = 50,4 dB: the lower limit as printed, (Rs >= 50,4 dB) | (Rs >= 50.4 dB) | Rs = 50.4 dB, a minimum value | exact | - | ![Pass][cv-pass] Pass | | ISO 10140-1:2021 J.1 with ISO 717-1:2020 4.4 and 4.5 | Indicative bands 400 Hz to 800 Hz rated again as infinitely high, by hand: Rs,w = 51 dB becomes 59 dB with C = 0 dB, more than 1 dB, so in brackets | Rs,w = 51 dB; opened 59 dB, C = 0 dB; in brackets | Rs,w = 51 dB; opened 59 dB, C = 0 dB; in brackets | exact | - | ![Pass][cv-pass] Pass | | ISO 10140-2:2021 Table A.1 | The printed R'F of the small test opening, carried through the joint front end uncorrected: R'F,w (C; Ctr) = 59 (-2; -7) dB as printed | Rw = 59 dB; C = -2 dB; Ctr = -7 dB | Rw = 59 dB; C = -2 dB; Ctr = -7 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 10140-1:2021 J.2.1, J.2.2 | Joint longer than 1 m (1 m fails), at most 50 mm wide (50 mm passes), a window or door gap at least 5,0 m (5,0 m passes); four gap readings within 0,3 mm | 8/8 bounds | 8/8 bounds | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 10140-1:2021 J.4 | A variable slit at bmin, bn = 5 mm (taken when unknown) and bn + 3 = 8 mm passes; without 8 mm, without bmin named, or at 6 mm nominal without 9 mm it fails | 5/5 series | 5/5 series | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 10140-5:2021 Table I.1 | Reference pane: the 36 cells, 10 lg(ηref) and LIc,ref in 18 bands, as printed | 36/36 printed cells | 36/36 printed cells | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 10140-5:2021 Annex I, Formulas (I.1) to (I.3) | Reference pane at twice the reference loss factor and at the printed LIc,ref: ΔLIc = 10 lg 2 in all 18 bands | 18/18 bands | 18/18 bands | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 10140-5:2021 Tables H.1 and H.2 | Intense and heavy rain: rate, drop diameter, fall velocity, holes, hole density and fall height as printed | 12/12 printed cells | 12/12 printed cells | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 10140-1:2021 Table K.1 | Moderate, intense, heavy and cloudburst rain: rate, drop diameter and fall velocity ranges as printed | 12/12 printed cells | 12/12 printed cells | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 10140-5:2021 H.1 | Heavy rain of Table H.1, 40 mm/h, within the ±2 mm/h of the H.1 text: 38 and 42 pass, and 38 collected as 3,8 L on 0,1 m² in one hour; 37,9 and 42,1 fail | pass, pass, pass, fail, fail | pass, pass, pass, fail, fail | exact | - | ![Pass][cv-pass] Pass | | ISO 15186-1:2000 Formula (7) | Intensity RI on the ISO 717-1 reference shape -> RI,w = 30 | RI,w 30 dB (scalar anchor RI = 34 dB) | RI,w 30 dB (RI = 34 dB) | +0 dB | - | ![Pass][cv-pass] Pass | | ISO 15186-1:2000 Annex B, Table B.1 | Adaptation term Kc: all 21 printed rows; (B.1) reduces to (B.2) | max abs(Kc - Table B.1) <= 0,05 dB (1 dp print) | 0.047 dB (B.1 vs B.2: 4.33e-04 dB) | 0.047 dB | - | ![Pass][cv-pass] Pass | | ISO 15186-3:2002 Annex A, Table A.1 | Limp-panel qualification: the printed plaster-board column | max abs(R - Table A.1) <= 0,05 dB (1 dp print) | 0.050 dB over 50 Hz to 160 Hz | 0.050 dB | - | ![Pass][cv-pass] Pass | | ISO 15186-3:2002 Formula (7) | Low-frequency RI subtracts 9 dB, three more than part 1 | RI = 15 dB, 3 dB below part 1; FpI = 8 dB qualifies at 10 not 6 | RI = 15 dB, part 1 - part 3 = 3 dB | +0.000 dB | - | ![Pass][cv-pass] Pass | | ISO 15186-3:2002 Clause 3.9, Formula (8) | Low-frequency DI,n,e; the series' own +10 lg N sign | DI,n,e = 21 dB; N = 4 adds 6.021 dB | 21 dB; N = 4 adds 6.021 dB | below 1e-12 dB | - | ![Pass][cv-pass] Pass | | ISO 10052:2021 Clause 3.6 | Survey R' applies the V/7,5 minimum-area rule | 26.197888 dB (+/-0 dB) | 26.197888 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 10052:2021 Clause 3.16 | Service-equipment LXY is the 3-position energy average | 32.823329 dB (+/-0 dB) | 32.823329 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 10052:2021 Table 4 | Reverberation-index estimate (35 <= V < 60, type g) | k = [4.5, 5.0, 5.5, 5.5, 5.5] dB | k = [4.5, 5.0, 5.5, 5.5, 5.5] dB | exact | - | ![Pass][cv-pass] Pass | | ISO 717-2:2020 Table 4 / Clause 5.2 | Reference-floor weighted level Ln,r,0,w and CI (ISO 16251-1 ΔLw anchor) | Ln,r,0,w = 78 dB, CI = -11 dB | Ln,r,0,w = 78 dB, CI = -11 dB | exact | - | ![Pass][cv-pass] Pass | | ISO 16251-1:2014 / ISO 717-2 Formula (2) | Floor-covering ΔLw: zero improvement gives ΔLw = 0 | ΔLw = 0 dB (ΔL = 0 -> Ln,r = Ln,r,0) | ΔLw = 0 dB | exact | - | ![Pass][cv-pass] Pass | | ISO 16251-1 / ISO 717-2 (Foret et al. 2011, carpet) | Measured textile-carpet improvement rates to ΔLw = 29 dB | ΔLw = 29 dB (paper, ISO 16251-1) | ΔLw = 29 dB | +0 dB | - | ![Pass][cv-pass] Pass | | ISO 10848-1:2006 Formula (14) | Flanking Kij (simplified) matches closed form | Kij = 1.9897 dB | Kij = 1.9897 dB | exact | - | ![Pass][cv-pass] Pass | | ISO 10848-1:2006 Formula (12) | Flanking equivalent absorption length aj at f_ref | aj = 1.2661 m | aj = 1.2661 m | exact | - | ![Pass][cv-pass] Pass | | ISO 10848-1:2006 Clause 7.3.1 | Flanking total loss factor η = 2,2/(f·Ts) | η = 0.0044 | η = 0.0044 | exact | - | ![Pass][cv-pass] Pass | | ISO 12354-1:2017 Formula (20) vs Hopkins Eq. 2.201 (6 mm glass) | Flanking critical frequency (c0²/1,8·cL·h) vs plate coincidence (c0²/2π · sqrt(m''/B')) | 2107.4 Hz (+/-1%) | 2123.5 Hz | 16.156 Hz | 77 % | ![Pass][cv-pass] Pass | | EN 29052-1:1992 Formula 4 | Apparent dynamic stiffness s't = 4π²·m't·fr² (m't=200 kg/m², fr=25 Hz) | 4.934802 MN/m³ (+/-0.000001 MN/m³) | 4.934802 MN/m³ | 0 MN/m³ | 0 % | ![Pass][cv-pass] Pass | | EN 29052-1:1992 clause 8.2 NOTE | Enclosed-gas stiffness s'a·d = 111 MN·mm/m³ (p₀=0,1 MPa, ε=0,9) | 5.55556 MN/m³ (+/-0.0001 MN/m³) | 5.55556 MN/m³ | 0 MN/m³ | 0 % | ![Pass][cv-pass] Pass | | EN 29052-1:1992 Formula 2 | Floating-floor natural frequency f0 = (1/2π)√(s'/m') (s'=10 MN/m³, m'=100 kg/m²) | 50.32921 Hz (+/-0 Hz) | 50.32921 Hz | 0 Hz | 0 % | ![Pass][cv-pass] Pass | | ISO 7626-1:2011 Table 1 / 3.1.2 | Closed-form SDOF driving-point mobility peak mag(Y(f0)) = 1/c (c=5 N·s/m) | 0.2 m/(N·s) (+/-0.000001 m/(N·s)) | 0.2 m/(N·s) | 0 m/(N·s) | 0 % | ![Pass][cv-pass] Pass | | ISO 7626-1:2011 Table 1 / 3.1.2 | Closed-form SDOF static receptance H(0) = 1/k (k=8000 N/m) | 0.000125 m/N (+/-0.0001%) | 0.000125 m/N | 0 m/N | 0 % | ![Pass][cv-pass] Pass | | ISO 7626-1:2011 Table 1 | FRF reciprocity: impedance × mobility = 1 (at 37 Hz) | 1 (= Z·Y) | 1 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 717-2:2020 Table D.4 | A-weighted maximum impact level LiA,Fmax of the Annex D worked example | 55,350 66... dB (rated 55 dB) | 55.350668 dB | 0.000001 dB | 1 % | ![Pass][cv-pass] Pass | | ISO 16283-2:2020 Table A.1 / JIS A 1418-2:2019 Table A.2 | Rubber-ball impact force exposure level LFE, five octave bands | 39,0 / 31,0 / 23,0 / 17,0 / 12,5 dB re 1 N at 31,5 to 500 Hz | 39 / 31 / 23 / 17 / 12,5 dB re 1 N | max \|dev\| 0.000 dB | - | ![Pass][cv-pass] Pass | | ISO 16283-2:2020 Formulae (4), (5), (6) | Standardized maximum impact level reduces to 10 lg(V/V0) at T = T0 | 73,0103 dB (= 70 + 10 lg(100/50)) | 73.0103 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ASTM E413-22 clause 5 (ASTM E1414 CAC) | Ceiling attenuation class of two accredited E1414 test reports | CAC 34 (ALA 16-091-4); CAC 25, sum 24 dB (Intertek J7488.04) | CAC 34; CAC 25, sum 24.0 dB | exact | - | ![Pass][cv-pass] Pass | | ISO 140-9:1985 clause 3.3 | Normalized ceiling attenuation Dn,c = D - 10 lg(A/A0), A0 = 10 m2 | 43.0103 dB (+/-0 dB) | 43.0103 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | Vigran (2008) Eqs. (9.18)-(9.20) | Plenum model: Eq. (9.18) converges to Eq. (9.20) as the damping vanishes | Eq. (9.20) value, reproduced by Eq. (9.18) | 139.5682 dB | 0.0004 dB | 40 % | ![Pass][cv-pass] Pass | | Hopkins (2007) Eq. 4.89 / Fig. 4.35 | Mass-spring-mass resonance of a masonry cavity wall without and with ties | 26 Hz (no ties) / 50 Hz (2,5 ties/m2, k = 2 MN/m) | 26.15 Hz / 49.93 Hz | +0.15 / -0.07 Hz | - | ![Pass][cv-pass] Pass | | Hopkins (2007) Table A4 | Dynamic stiffness of four wall ties (butterfly, double-triangle, twist) | 1,7 / 16,1 / 94,0 MN/m at 50 mm; 43,4 MN/m at 100 mm | 1.7 / 16.1 / 94 / 43.4 MN/m | exact | - | ![Pass][cv-pass] Pass | | ISO 10846-2:2008 3.17 | Transfer-stiffness level Lk = 20 lg(\|k\|/k0), k0 = 1 N/m (\|k\| = 1 MN/m) | 120 dB (+/-0 dB) | 120 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 10846-3:2002 Formula (1) | Indirect method k2,1 = -(2πf)²·m2·T (f=500 Hz, m2=10 kg, T=0,01) | -986960.4 N/m (+/-0.1%) | -986960.4 N/m | 0 N/m | 0 % | ![Pass][cv-pass] Pass | | ISO 10846-1:2008 Table A.2 | FRF relation k = jω·Z at 250 Hz (\|k\| recovered from impedance) | 1001249.2 N/m (+/-0.0001%) | 1001249.2 N/m | 0 N/m | 0 % | ![Pass][cv-pass] Pass | | ISO 7626-2:2015 7.5.2 | Rigid-mass calibration: accelerance mag(A) = 1/m (m=10 kg) | 0.1 1/kg (+/-0 1/kg) | 0.1 1/kg | 0 1/kg | 0 % | ![Pass][cv-pass] Pass | | ISO 7626-2:2015 7.5.2 | Rigid-mass calibration: mobility mag(Y) = 1/(2πf·m) at 100 Hz (m=10 kg) | 0.0001592 m/(N·s) (+/-0.001%) | 0.0001592 m/(N·s) | 0 m/(N·s) | 4 % | ![Pass][cv-pass] Pass | | ISO 7626-2:2015 Annex A | Normalized random error ε = √((1−γ²)/(2nγ²)): γ²=0,8, n=75 → 4,08 % (< 5 %) | 4.08 % (+/-0.01 %) | 4.08 % | 0.002 % | 40 % | ![Pass][cv-pass] Pass | | ISO 7626-1:2011 Table 1 | Rigid 1 kg mass at ω = 1000 rad/s: mobility 1e-3, compliance 1e-6 (decades) | 0.001 m/(N·s) (+/-1e-07%) | 0.001 m/(N·s) | 0 m/(N·s) | 0 % | ![Pass][cv-pass] Pass | | ISO 7626-5:2019 8.6 | Averaged impact estimate of a 10 % resonator: mag(Y) at 40 Hz = closed form | 0.0099472 m/(N·s) (+/-1e-05%) | 0.0099472 m/(N·s) | 0 m/(N·s) | 0 % | ![Pass][cv-pass] Pass | | ISO 7626-5:2019 8.6 | Three noisy impacts: estimate = averaged cross-spectrum / averaged force auto-spectrum | 0.0105183 m/(N·s) (+/-1e-07%) | 0.0105183 m/(N·s) | 0 m/(N·s) | 0 % | ![Pass][cv-pass] Pass | | ISO 7626-5:2019 Annex A Formula (A.2) | Exponential window on force and response: windowed accelerance = A(s + a) | 0 (A(s + a) below 500 Hz) | max relative deviation 1.9e-08 | 0 | 19 % | ![Pass][cv-pass] Pass | | ISO 7626-5:2019 Annex A Formula (A.3) | Damping of a 0,5 % resonator after a 5 1/s window, corrected by (A.3) as printed | 0.0049924 (+/-0.000003) | 0.0049904 | -0.000002 | 67 % | ![Pass][cv-pass] Pass | | ISO 7626-5:2019 Annex A | Damping back from a 20 1/s window, the pole moved back by a: 0,5 % | 0.005 (+/-0.0001%) | 0.005 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 7626-5:2019 Annex A | Corrected mobility peak of a 0,5 % resonator after a 20 1/s window = 1/c | 0.19894 m/(N·s) (+/-0.001%) | 0.19894 m/(N·s) | 0 m/(N·s) | 0 % | ![Pass][cv-pass] Pass | | ISO 7626-5:2019 6.4 (Figure 5) | Two equal impacts 62,5 ms apart: notches every 1/τ = 16 Hz, zero at 8, 24, 40 Hz | 16 Hz (+/-0 Hz) | 16 Hz | 0 Hz | 0 % | ![Pass][cv-pass] Pass | | ISO 7626-5:2019 6.4 | Second impact 0,6 of the first: ripple 20 lg(1,6/0,4) = 12,04 dB | 12.041 dB (+/-0 dB) | 12.041 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 7626-5:2019 7.2 (ISO 7626-2:2015 7.5.2) | Rigid 3 kg block through both windows: accelerance 1/m = 0,3333 1/kg | 0.3333 1/kg (+/-1e-10%) | 0.3333 1/kg | 0 1/kg | 0 % | ![Pass][cv-pass] Pass | | ISO 7626-5:2019 8.5.2 (Figure 10) | Exponential window that decays to 5 % at the end of the record | 0.05 (+/-0) | 0.05 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 7626-5:2019 8.3, 8.5.2 | Response decaying to 1 % at the end reads 10 % at the midpoint | 0.1 (+/-0.1%) | 0.1 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 7626-5:2019 8.3, 8.5.2 | Response whose envelope ends at 1 %: level at the last sample = 1 %, passes | 0.01 (+/-2%) | 0.0099 | -0.0001 | 50 % | ![Pass][cv-pass] Pass | | ISO 7626-5:2019 3.3, 3.4 | Force ESD of a 0,5 ms Gaussian: fall across 1 Hz to 500 Hz in closed form | 10.7157 dB (+/-1e-06%) | 10.7157 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 7626-5:2019 9.1 | Noise-free records: coherence 1 over the range; five records pass | 1 (+/-0) | 1 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 7626-5:2019 8.1, 8.3, 8.5.2, 9.1 | The printed limits: channel match, response decay and coherence | channel magnitude = 0.05; channel phase deg = 5; end of record = 0.01; midpoint = 0.1; windowed end = 0.25; high coherence = 0.9; coherence records = 5 | channel magnitude = 0.05; channel phase deg = 5; end of record = 0.01; midpoint = 0.1; windowed end = 0.25; high coherence = 0.9; coherence records = 5 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 10846-3:2002 6.1 Inequality (2) | Indirect-method validity limit mag(T) = 0,1 ↔ ΔL1,2 = 20 dB | 20 dB (+/-0 dB) | 20 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 10846-3:2002 6.1 | Model bias at the validity limit: k_ind/k = 1,1 (0,83 dB ≤ 1 dB, 10 % ≤ 12 %) | 1.1 (+/-1e-07%) | 1.1 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 10846-1:2008 Equation (6) | Delivered/blocking force F2/F2,b = 1/1,1 at mag(k2,2/kt) = 0,1 (within 10 %) | 0.9091 (+/-0) | 0.9091 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 10846-2:2008 7.7 / -3:2002 7.6 | Linearity: ΔLk ≤ 1,5 dB for input spectra 10 dB apart (linear element: 0) | ΔLk ≤ 1,5 dB (-2 7.7 c), -3 7.6 c)) | 0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 10846-4:2003 Formula (11) / ISO 10846-5:2008 Formula (6) | A band of five identical lines averages to that line (closed form, 1 MN/m) | 1000000 N/m (+/-1e-07%) | 1000000 N/m | 0 N/m | 0 % | ![Pass][cv-pass] Pass | | ISO 10846-4:2003 Formula (11) | Squared-magnitude average of \|k\| = 1 to 5 MN/m is √11 MN/m (closed form) | 3316624.8 N/m (+/-1e-10%) | 3316624.8 N/m | 0 N/m | 0 % | ![Pass][cv-pass] Pass | | ISO 10846-4:2003 8.3 / ISO 10846-5:2008 8.2 | A band of four lines has no band value: n ≥ 5 frequencies | 1/1 band of four lines left undetermined | 1/1 band of four lines left undetermined | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 10846-5:2008 Formula (3) | A massless spring gives a flat k1,1 = k from 1 Hz to 400 Hz, f_UL never reached | 0 N/m (flat \|k\|, no f_UL) | 0 N/m | 0 N/m | 0 % | ![Pass][cv-pass] Pass | | ISO 10846-5:2008 6.2 | f_UL of a 1 MN/m spring under a 2 kg plate: 2 dB below the 1 Hz to 20 Hz value (closed form) | 52.119 Hz (+/-0.01 Hz) | 52.119 Hz | 0 Hz | 2 % | ![Pass][cv-pass] Pass | | ISO 10846-5:2008 Formula (7) | Every band of k1,1 at or below f_UL is within 2 dB of k2,1 (2 kg plate on 1 MN/m) | within 2 dB (8.3) | 1.779 dB | 1.779 dB | 89 % | ![Pass][cv-pass] Pass | | ISO 10846-4:2003 Inequality (3) | Output mass limit 0,06·\|F2\|/\|a2\|: LF2 = 120 dB, La2 = 100 dB gives 0,6 kg | 0.6 kg (+/-1e-10%) | 0.6 kg | 0 kg | 0 % | ![Pass][cv-pass] Pass | | ISO 10846-4:2003 6.2 NOTE 1 | m0 on the Inequality (3) bound: worst-case force-level bias -20 lg 0,94 = 0,537 dB, the 0,5 dB NOTE 1 prints to one decimal (1 dp print) | 0,5 dB (1 dp print, +/-0,05 dB) | 0.537 dB | 0.037 dB | 74 % | ![Pass][cv-pass] Pass | | ISO 10846-4:2003 Formula (6) | A rigid 25 kg block: m2,eff = \|2F2/(a'1 + a''1)\| = m2 at every frequency | 0 kg (+/-0 kg) | 0 kg | 0 kg | 0 % | ![Pass][cv-pass] Pass | | ISO 10846-4:2003 Inequality (5) / ISO 10846-3:2002 Inequality (3) | f3 of m2,eff = m2(1 + (f/3 kHz)²): the 1 dB crossing, 3000·√(10^(1/20) - 1) Hz | 1047.93 Hz (+/-0.05 Hz) | 1047.93 Hz | 0 Hz | 0 % | ![Pass][cv-pass] Pass | | ISO 10846-5:2008 Inequalities (1) and (2) | 20 dB and 15 dB hold at equality and fail 0,1 dB below | 4/4 verdicts at and below the limits | 4/4 verdicts at and below the limits | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 10846-5:2008 Formulas (B.2) and (B.3) | Budget from the B.3 expressions: u = 1,394 dB, U = 2u = 2,789 dB (no repeatability spread) | 2.7887 dB (+/-0 dB) | 2.7887 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 10846-5:2008 Table B.1 | The Table B.1 inputs (B.3 expressions rounded up to one decimal) give u = √2,12 = 1,456 dB | 1.456 dB (+/-0 dB) | 1.456 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO/TS 7849-1:2009 Formula (8) | Calibration L_v from â = 9,81 m/s² at 100 Hz (standard's EXAMPLE) | 106.9 dB (+/-0.1 dB) | 106.9 dB | -0.02 dB | 40 % | ![Pass][cv-pass] Pass | | ISO/TS 7849-2:2009 Formula (15) | L_W from L_v via measured radiation factor = 10 lg(P/P0) (round-trip) | 84.771 dB (+/-0 dB) | 84.771 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO/TS 7849-1:2009 Formula (12) | Impedance term: L_W − L_v = 10 lg(411/400) at ε = 1, S = S0 | 0.1178 dB (+/-0 dB) | 0.1178 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | EN 15657:2018 Formula (14) | Reception-plate L_Ws = resonant-plate power P = ωη(mS)⟨v²⟩ (round-trip) | 55.545 dB (+/-0 dB) | 55.545 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | EN 15657:2018 Formula (13) | Plate loss factor η = 2,2/(f·Ts) at 1 kHz, Ts = 0,3 s | 0.0073 (+/-0) | 0.0073 | 0 | 0 % | ![Pass][cv-pass] Pass | | EN 15657:2018 Formulae (15)/(17) + EN 12354-5 Annex I.3 | Source conversion chain reproduces Table I.8 (wall, installed) | max abs(L_Ws,inst - Table I.8) <= 0,15 dB | 0.055 dB | 0.055 dB | 37 % | ![Pass][cv-pass] Pass | | ISO 9611:1996 eq. (9) | Mean free velocity level (energy mean, v0 = 5e-8 m/s) | 72.3017 dB (+/-0 dB) | 72.3017 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 12354-1:2017 Annex L, Tables L.2 to L.4 | In-situ element chain: 10 lg sigma, 10 lg sigma_f, eta_tot, Rsitu, a_situ (21 bands x 5 elements) | 0 dB (+/-0.1 dB) | 0.057 dB | 0.057 dB | 57 % | ![Pass][cv-pass] Pass | | ISO 12354-1:2017 Annex L, Table L.1 | Detailed airborne model: 13 paths + R' per band, R'w = 57 dB | max path/total dev <= 0,1 dB; R'w = 57 dB | 0.055 dB; 57 dB | 0.055 dB | - | ![Pass][cv-pass] Pass | | ISO 12354-2:2017 Annex G, Tables G.3, G.4 and G.1 | Detailed impact model: Ln,situ, Ln,Dd, Ln,Df, L'n per band, L'n,w = 41 dB | max path/total dev <= 0,1 dB; L'n,w (CI) = 41 (2) dB | 0.077 dB; 41 (2) dB | 0.077 dB | - | ![Pass][cv-pass] Pass | | Hopkins (2007) 3.6.3.1 / 4.4.3.1, printed pp. 276-282 and 513-514 | Tapping machine: vo, cut-off frequencies fco of a bare slab and two soft coverings (7 000 / 2 300 / 100 Hz) | 0 (+/-0.02) | 0.0077 | 0.0077 | 38 % | ![Pass][cv-pass] Pass | | Hopkins (2007) Figs. 3.30/3.31 and 4.73, printed pp. 281 and 524 | Over/under-critical case of four walking surfaces; double floating-floor resonances 74 Hz and 195 Hz | 4/4 critical cases; fmsms = 74 / 195 Hz (+/-2%) | 4/4; 74.1 / 194.0 Hz | 0.53% | - | ![Pass][cv-pass] Pass | | ISO 12354-2:2017 Annex C / Annex G Table G.4 | Floating floor: fo = 160 sqrt(s'/m') = 52,8 Hz, DeltaL = 30 lg(f/fo) over 21 bands, DeltaLw = 32,2 dB | 0 dB (+/-0.05 dB) | 0.048 dB | 0.048 dB | 96 % | ![Pass][cv-pass] Pass | | ISO 12354-1:2017 Annex D / Hopkins (2007) Fig. 4.48, printed p. 486 | Lining resonance (Formula D.1) 542 Hz and the Table D.1 improvement branches | fo = 542 Hz (+/-1%); 8/8 Table D.1 rows | 541.9 Hz; 8/8 | 0.02% | - | ![Pass][cv-pass] Pass | | EN 12354-5:2009 Formula (19b/19c) | Coupling term → force-source limit 10 lg(mag(Ys)/Re{Yi}) as mag(Ys) ≫ mag(Yi) | 40 dB (+/-0.01 dB) | 40.001 dB | 0.001 dB | 10 % | ![Pass][cv-pass] Pass | | EN 12354-5:2009 Annex I.3, Table I.9 | Flushing cistern: four paths + Formula (17) total -> 29 dB(A) | max path/total dev <= 0.15 dB; total 29 dB(A) | 0.055 dB; 29.3 dB(A) | 0.055 dB | - | ![Pass][cv-pass] Pass | | EN 12354-5:2009 Annex I.2, Table I.6a | Whirlpool floor component: mobility correction + path 11 | max abs(dev vs Table I.6a) <= 0,15 dB | 0.1 dB | 0.1 dB | 67 % | ![Pass][cv-pass] Pass |

Room acoustics: 100% (16/16)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | Sabine (W. C. Sabine, 1922) | Reverberation time T = k·V/A (V=120 m³, S=158 m², α=0.2) | 0.611825 s (+/-0.000001 s) | 0.611825 s | 0 s | 0 % | ![Pass][cv-pass] Pass | | Long, Architectural Acoustics 2e, Table 8.1 | Room modes of a 7 x 5 x 3 m room: the six printed frequencies, Hz | 42.4 Hz (+/-0.13 Hz) | 42.27 Hz | -0.126 Hz | 97 % | ![Pass][cv-pass] Pass | | Long, Architectural Acoustics 2e, Eq. (8.46) | Modal density of a 7 x 5 x 3 m room at 1 kHz = 34 modes/Hz | 34 modes/Hz (+/-0.5 modes/Hz) | 34.32 modes/Hz | 0.32 modes/Hz | 64 % | ![Pass][cv-pass] Pass | | Long, Architectural Acoustics 2e, Eq. (17.51) | Restaurant self-noise, 20 talkers over 20 metric sabins = 76 dB | 76 dB (+/-0.05 dB) | 76.021 dB | 0.021 dB | 42 % | ![Pass][cv-pass] Pass | | Long, Architectural Acoustics 2e, Eq. (17.54) | Privacy bound A_tab < 3.16 rt^2 (Q = 2, L_SN = -9 dB) | 3.16 m² (+/-0.005 m²) | 3.164 m² | 0.004 m² | 80 % | ![Pass][cv-pass] Pass | | Everest, Master Handbook of Acoustics 4th ed, Fig. 7-22 | Sabine RT, worked Example 1 @ 1 kHz (untreated 23.3×16×10 ft room, SI) | 3.39 s (+/-0.02 s) | 3.402 s | 0.012 s | 60 % | ![Pass][cv-pass] Pass | | Eyring (Norris-Eyring, 1930) | Reverberation time T = k·V/(-S·ln(1-ᾱ)) (α=0.2) | 0.548369 s (+/-0.000001 s) | 0.548369 s | 0 s | 0 % | ![Pass][cv-pass] Pass | | Arau-Puchades (Acustica 65, 1988, Formula 18) | T (α=0.5/0.1/0.1 per wall pair, dims 8×5×3 m) | 0.812147 s (+/-0.000001 s) | 0.812147 s | 0 s | 0 % | ![Pass][cv-pass] Pass | | Model identity (uniform absorption) | Arau-Puchades ≡ Eyring when ᾱ is uniform | 0.548369 s (= Eyring) | 0.548369 s | 0 s | 0 % | ![Pass][cv-pass] Pass | | Vorlander Auralization 2e, Eq. (11.38)-(11.39) | Image-source direct-sound amplitude 1/(4πr) and delay r/c (r = 4 m) | 0.0198944 (+/-0) | 0.0198944 | 0 | 0 % | ![Pass][cv-pass] Pass | | Kuttruff Room Acoustics 6e, Eq. (9.23) | Audible shoebox image count up to order 10 (= 1560) | 156 (+/-0) | 156 | 0 | 0 % | ![Pass][cv-pass] Pass | | Kuttruff Room Acoustics 6e, Eq. (4.6) | Temporal reflection density dN/dt = 4πc³t²/V (t = 0.1 s, V = 120 m³) | 42258.2 1/s (+/-0 1/s) | 42258.2 1/s | 0 1/s | 0 % | ![Pass][cv-pass] Pass | | Bies 5e Eq. (6.44) | Room constant R = Sᾱ/(1-ᾱ) (S = 100 m², ᾱ = 0.2 → 25 m²) | 25 m² (+/-0 m²) | 25 m² | 0 m² | 0 % | ![Pass][cv-pass] Pass | | Bies 5e Eq. (6.43) | Critical distance rc: direct field = reverberant field (R = 25, Q = 1) | 0.160000 (= reverberant term) | 0.16 | 0 | 0 % | ![Pass][cv-pass] Pass | | Kuttruff Room Acoustics 6e, Eq. (3.44) | Schroeder frequency f_s = 2000√(T/V) (V = 200 m³, T = 1 s) | 141.421 Hz (+/-0 Hz) | 141.421 Hz | 0 Hz | 0 % | ![Pass][cv-pass] Pass | | Bies 5e Eq. (6.43) | Steady-state SPL Lp = Lw + 10lg(Q/4πr² + 4/R) (Lw=90, r=1, R=25, Q=1) | 83.7945 dB (+/-0 dB) | 83.7945 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass |

Sound calibrators and the conformance rule (IEC 60942, IEC 61672-1): 100% (28/28)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | IEC 60942:2017 Table E.1 | Example 1: \|deviation\| 0.40 dB, U 0.12 dB against 0.25 dB and 0.15 dB | No: Deviation exceeds acceptance limits | No: Deviation exceeds acceptance limits | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60942:2017 Table E.1 | Example 2: \|deviation\| 0.35 dB, U 0.12 dB against 0.25 dB and 0.15 dB | No: Deviation exceeds acceptance limits | No: Deviation exceeds acceptance limits | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60942:2017 Table E.1 | Example 3: \|deviation\| 0.20 dB, U 0.13 dB against 0.25 dB and 0.15 dB | Yes: Deviation within acceptance limits AND uncertainty within maximum-permitted | Yes: Deviation within acceptance limits AND uncertainty within maximum-permitted | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60942:2017 Table E.1 | Example 4: \|deviation\| 0.00 dB, U 0.14 dB against 0.25 dB and 0.15 dB | Yes: Deviation within acceptance limits AND uncertainty within maximum-permitted | Yes: Deviation within acceptance limits AND uncertainty within maximum-permitted | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60942:2017 Table E.1 | Example 5: \|deviation\| 0.00 dB, U 0.17 dB against 0.25 dB and 0.15 dB | No: Deviation within acceptance limits BUT uncertainty exceeds maximum-permitted | No: Deviation within acceptance limits BUT uncertainty exceeds maximum-permitted | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60942:2017 Table E.1 | Example 6: \|deviation\| 0.25 dB, U 0.10 dB against 0.25 dB and 0.15 dB | Yes: Deviation within acceptance limits AND uncertainty within maximum-permitted | Yes: Deviation within acceptance limits AND uncertainty within maximum-permitted | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60942:2017 Table E.1 | Example 7: \|deviation\| 0.25 dB, U 0.15 dB against 0.25 dB and 0.15 dB | Yes: Deviation within acceptance limits AND uncertainty within maximum-permitted | Yes: Deviation within acceptance limits AND uncertainty within maximum-permitted | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60942:2017 Table E.1 | Example 8: \|deviation\| 0.40 dB, U 0.50 dB against 0.25 dB and 0.20 dB | No: Deviation exceeds acceptance limits AND uncertainty exceeds maximum-permitted | No: Deviation exceeds acceptance limits AND uncertainty exceeds maximum-permitted | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-1:2013 Table C.1 | Example 1: deviation +1.7 dB, U 0.3 dB against +1.0; -1.2 dB and 0.5 dB | No: Deviation exceeds acceptance limits | No: Deviation exceeds acceptance limits | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-1:2013 Table C.1 | Example 2: deviation +1.1 dB, U 0.3 dB against +1.0; -1.2 dB and 0.5 dB | No: Deviation exceeds acceptance limits | No: Deviation exceeds acceptance limits | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-1:2013 Table C.1 | Example 3: deviation +1.0 dB, U 0.3 dB against +1.0; -1.2 dB and 0.5 dB | Yes: Deviation within acceptance limits AND uncertainty within maximum-permitted | Yes: Deviation within acceptance limits AND uncertainty within maximum-permitted | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-1:2013 Table C.1 | Example 4: deviation +0.0 dB, U 0.3 dB against +1.0; -1.2 dB and 0.5 dB | Yes: Deviation within acceptance limits AND uncertainty within maximum-permitted | Yes: Deviation within acceptance limits AND uncertainty within maximum-permitted | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-1:2013 Table C.1 | Example 5: deviation +0.0 dB, U 0.9 dB against +1.0; -1.2 dB and 0.5 dB | No: Deviation within acceptance limits BUT uncertainty exceeds maximum-permitted | No: Deviation within acceptance limits BUT uncertainty exceeds maximum-permitted | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-1:2013 Table C.1 | Example 6: deviation -0.5 dB, U 0.3 dB against +1.0; -1.2 dB and 0.5 dB | Yes: Deviation within acceptance limits AND uncertainty within maximum-permitted | Yes: Deviation within acceptance limits AND uncertainty within maximum-permitted | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-1:2013 Table C.1 | Example 7: deviation -1.2 dB, U 0.3 dB against +1.0; -1.2 dB and 0.5 dB | Yes: Deviation within acceptance limits AND uncertainty within maximum-permitted | Yes: Deviation within acceptance limits AND uncertainty within maximum-permitted | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-1:2013 Table C.1 | Example 8: deviation -1.3 dB, U 0.3 dB against +1.0; -1.2 dB and 0.5 dB | No: Deviation exceeds acceptance limits | No: Deviation exceeds acceptance limits | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-1:2013 Table C.1 | Example 9: deviation -2.0 dB, U 0.3 dB against +1.0; -1.2 dB and 0.5 dB | No: Deviation exceeds acceptance limits | No: Deviation exceeds acceptance limits | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-1:2013 Table C.1 | Example 10: deviation -2.0 dB, U 0.7 dB against +1.0; -1.2 dB and 0.5 dB | No: Deviation exceeds acceptance limits AND uncertainty exceeds maximum-permitted | No: Deviation exceeds acceptance limits AND uncertainty exceeds maximum-permitted | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60942:2017 Table 2 | Level and short-term fluctuation limits, dashes and ranges, by class | 84/84 printed cells | 84/84 printed cells | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60942:2017 Tables 3, 4 and 6 | Supply-voltage, frequency and environmental-frequency limits, by class | 9/9 printed cells | 9/9 printed cells | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60942:2017 Tables 5 and 7 | Environmental level and total distortion + noise limits, by class | 56/56 printed cells | 56/56 printed cells | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60942:2017 Tables A.1, A.3 and A.4 | Maximum-permitted uncertainties keyed by frequency, by class | 140/140 printed cells | 140/140 printed cells | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60942:2017 Tables A.2 and A.5, A.5.5.7 | Maximum-permitted uncertainties of the frequency and the supply-voltage effect | 9/9 printed cells | 9/9 printed cells | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60942:2017 5.9.4.2 and A.7.4.8 | Level change in a power- or radio-frequency field and its maximum uncertainty | 6/6 printed cells | 6/6 printed cells | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60942:2017 A.6.4.7 | Reduced limits of the abbreviated environmental test | 6/6 printed cells | 6/6 printed cells | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60942:2017 5.1.15 with Tables 2 and A.1 | Table E.1 examples 1 to 7 as a class 1 level at 1 kHz, 7 verdicts | No, No, Yes, Yes, No, Yes, Yes | 7/7 verdicts | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60942:2017 A.6.4.7 | 0,22 dB conforms to Table 5 and not to the abbreviated test, 2 verdicts | conforms to Table 5 (0,25 dB), not to A.6.4.7 (0,20 dB) | 2/2 verdicts | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60942:2017 5.5 and A.6.2.4 with Tables 2, 5, A.4 and A.5 | Class 1 at 2 kHz: 0,33 dB out of the band and in it, -0,5 % with U 0,25 %, 3 verdicts | No by Table 5 (0,30 dB); Yes by Table 2 (0,35 dB); No, U over Table A.5 (0,2 %) | 3/3 verdicts | exact | 0 % | ![Pass][cv-pass] Pass |

Sound level meter periodic tests (IEC 61672-3, IEC 61672-1): 100% (40/40)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | IEC 61672-1:2013 Table 4 | Reference responses and limits of LAFmax - LA and LAE - LA, 12 durations | 96/96 cells | 96/96 cells | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-1:2013 Table 4 | Reference responses and limits of LASmax - LA, 9 durations | 36/36 cells | 36/36 cells | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-1:2013 Table 4, Equations (7) and (8) | Reference toneburst responses against 10 lg(1 - exp(-Tb/tau)) and 10 lg(Tb/T0) | 33/33 reference responses | 33/33 reference responses | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-1:2013 Table 5 | Reference differences LCpeak - LC and limits, 5 test signals | 25/25 cells | 25/25 cells | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-1:2013 Table B.1 | Maximum-permitted uncertainties, 31 printed rows (the F and S decay rates in two) | 32/32 rows | 32/32 rows | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-3:2013 12.16 with IEC 61672-1:2013 Table 3 | Acoustical weighting at 8 kHz, class 1, upper limit | conforms 0.01 dB inside and at the limit, not 0.01 dB past it | conforms inside, conforms at the limit, does not conform past it | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-3:2013 12.16 with IEC 61672-1:2013 Table 3 | Acoustical weighting at 8 kHz, class 1, lower limit | conforms 0.01 dB inside and at the limit, not 0.01 dB past it | conforms inside, conforms at the limit, does not conform past it | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-3:2013 12.16 with IEC 61672-1:2013 Table 3 | Acoustical weighting at 125 Hz, class 2, lower limit | conforms 0.01 dB inside and at the limit, not 0.01 dB past it | conforms inside, conforms at the limit, does not conform past it | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-3:2013 12.16 with IEC 61672-1:2013 Table 3 | Acoustical weighting at 8 kHz, class 2, upper limit | conforms 0.01 dB inside and at the limit, not 0.01 dB past it | conforms inside, conforms at the limit, does not conform past it | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-3:2013 13.10 with IEC 61672-1:2013 Table 3 | Electrical weighting A at 16 kHz, class 1, lower limit | conforms 0.01 dB inside and at the limit, not 0.01 dB past it | conforms inside, conforms at the limit, does not conform past it | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-3:2013 13.10 with IEC 61672-1:2013 Table 3 | Electrical weighting C at 1 kHz, class 1, upper limit | conforms 0.01 dB inside and at the limit, not 0.01 dB past it | conforms inside, conforms at the limit, does not conform past it | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-3:2013 13.10 with IEC 61672-1:2013 Table 3 | Electrical weighting Z at 8 kHz, class 2, lower limit | conforms 0.01 dB inside and at the limit, not 0.01 dB past it | conforms inside, conforms at the limit, does not conform past it | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-3:2013 14.2 with IEC 61672-1:2013 5.5.9 | C against A at 1 kHz | conforms 0.01 dB inside and at the limit, not 0.01 dB past it | conforms inside, conforms at the limit, does not conform past it | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-3:2013 14.3 with IEC 61672-1:2013 5.8.3 | Time-averaged against F at 1 kHz | conforms 0.01 dB inside and at the limit, not 0.01 dB past it | conforms inside, conforms at the limit, does not conform past it | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-3:2013 15.3 with IEC 61672-1:2013 5.14.2 | Long-term stability, class 1 | conforms 0.01 dB inside and at the limit, not 0.01 dB past it | conforms inside, conforms at the limit, does not conform past it | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-3:2013 15.3 with IEC 61672-1:2013 5.14.2 | Long-term stability, class 2 | conforms 0.01 dB inside and at the limit, not 0.01 dB past it | conforms inside, conforms at the limit, does not conform past it | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-3:2013 16.4 with IEC 61672-1:2013 5.6.5 | Level linearity on the reference level range, class 1 | conforms 0.01 dB inside and at the limit, not 0.01 dB past it | conforms inside, conforms at the limit, does not conform past it | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-3:2013 16.4 with IEC 61672-1:2013 5.6.5 | Level linearity on the reference level range, class 2 | conforms 0.01 dB inside and at the limit, not 0.01 dB past it | conforms inside, conforms at the limit, does not conform past it | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-3:2013 17.5 with IEC 61672-1:2013 5.6.5 | Level linearity including the range control, class 1 | conforms 0.01 dB inside and at the limit, not 0.01 dB past it | conforms inside, conforms at the limit, does not conform past it | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-3:2013 17.5 with IEC 61672-1:2013 5.6.5 | Level linearity including the range control, class 2 | conforms 0.01 dB inside and at the limit, not 0.01 dB past it | conforms inside, conforms at the limit, does not conform past it | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-3:2013 18.8 with IEC 61672-1:2013 Table 4 | Toneburst LAFmax - LA at 0.25 ms, class 1, lower limit | conforms 0.01 dB inside and at the limit, not 0.01 dB past it | conforms inside, conforms at the limit, does not conform past it | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-3:2013 18.8 with IEC 61672-1:2013 Table 4 | Toneburst LAFmax - LA at 0.25 ms, class 2, lower limit | conforms 0.01 dB inside and at the limit, not 0.01 dB past it | conforms inside, conforms at the limit, does not conform past it | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-3:2013 18.8 with IEC 61672-1:2013 Table 4 | Toneburst LAFmax - LA at 0.25 ms, class 2, upper limit | conforms 0.01 dB inside and at the limit, not 0.01 dB past it | conforms inside, conforms at the limit, does not conform past it | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-3:2013 18.8 with IEC 61672-1:2013 Table 4 | Toneburst LASmax - LA at 2 ms, class 1, lower limit | conforms 0.01 dB inside and at the limit, not 0.01 dB past it | conforms inside, conforms at the limit, does not conform past it | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-3:2013 18.8 with IEC 61672-1:2013 Table 4 | Toneburst LASmax - LA at 2 ms, class 2, lower limit | conforms 0.01 dB inside and at the limit, not 0.01 dB past it | conforms inside, conforms at the limit, does not conform past it | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-3:2013 19.6 with IEC 61672-1:2013 Table 5 | C-weighted peak, one cycle at 8 kHz, class 1, upper limit | conforms 0.01 dB inside and at the limit, not 0.01 dB past it | conforms inside, conforms at the limit, does not conform past it | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-3:2013 19.6 with IEC 61672-1:2013 Table 5 | C-weighted peak, one cycle at 8 kHz, class 2, upper limit | conforms 0.01 dB inside and at the limit, not 0.01 dB past it | conforms inside, conforms at the limit, does not conform past it | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-3:2013 19.6 with IEC 61672-1:2013 Table 5 | C-weighted peak, negative half cycle at 500 Hz, class 1, lower limit | conforms 0.01 dB inside and at the limit, not 0.01 dB past it | conforms inside, conforms at the limit, does not conform past it | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-3:2013 19.6 with IEC 61672-1:2013 Table 5 | C-weighted peak, negative half cycle at 500 Hz, class 2, lower limit | conforms 0.01 dB inside and at the limit, not 0.01 dB past it | conforms inside, conforms at the limit, does not conform past it | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-3:2013 20.4 with IEC 61672-1:2013 5.11.3 | Overload indication, positive less negative half cycle | conforms 0.01 dB inside and at the limit, not 0.01 dB past it | conforms inside, conforms at the limit, does not conform past it | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-3:2013 21.3 with IEC 61672-1:2013 5.15.2 | High-level stability, class 1 | conforms 0.01 dB inside and at the limit, not 0.01 dB past it | conforms inside, conforms at the limit, does not conform past it | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-3:2013 21.3 with IEC 61672-1:2013 5.15.2 | High-level stability, class 2 | conforms 0.01 dB inside and at the limit, not 0.01 dB past it | conforms inside, conforms at the limit, does not conform past it | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-3:2013 4.3 with IEC 61672-1:2013 Table B.1 | The maximum of every requirement: conforms at its value, unusable 0.01 dB above | 11/11 maxima | 11/11 maxima | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-3:2013 4.4 with IEC 61672-1:2013 Table B.1 | Over the maximum only by the correction data: did not conform, and unusable past it | 4.4 inside and at the maximum, unusable (4.3) past it | 4.4 just inside, 4.4 at the maximum, not 4.4 past it | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-3:2013 8.1 with IEC 61672-1:2013 5.1.10 | A class 2 meter with C-weighted peak owes C in 11.2, 13 and 14.2 | 4/4 completeness findings | 4/4 completeness findings | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-3:2013 8.1, 14.1 and 20.1 | S tonebursts and an overload test show the displays 14.3 compares with F | 4/4 completeness findings | 4/4 completeness findings | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-3:2013 16.3, 17.3 and 17.4 | Steps short of 16.3, or a level range left out of 17.4, the reference one included, leave the test open | 7/7 completeness findings | 7/7 completeness findings | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-3:2013 22 r) | Statement of a pass with public pattern approval, class 1 | 1/1 statement word for word | 1/1 statement word for word | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-3:2013 22 s) | Statement of a pass without public pattern approval, class 2 | 1/1 statement word for word | 1/1 statement word for word | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61672-3:2013 22 t) | Statement of a failure, class 1 | 1/1 statement word for word | 1/1 statement word for word | exact | 0 % | ![Pass][cv-pass] Pass |

Psychoacoustics: 100% (14/14)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | Moore, Psychology of Hearing 6e, p. 77 (Glasberg & Moore 1990) | ERB_N number of 1000 Hz = 15.59 Cam | 15.59 Cam (+/-0.005 Cam) | 15.5932 Cam | 0.0032 Cam | 64 % | ![Pass][cv-pass] Pass | | Moore, Psychology of Hearing 6e, p. 76 (Glasberg & Moore 1990) | ERB_N at 1 kHz vs the printed 24.7(4.37F + 1), Hz | 132.639 Hz (+/-0.3%) | 132.445 Hz | -0.194 Hz | 49 % | ![Pass][cv-pass] Pass | | ISO 532-1:2017 Annex B.2 | Zwicker loudness N, stationary test signal 1 | 83.2957 sone (+/-0.1%) | 83.2957 sone | 0 sone | - | ![Pass][cv-pass] Pass | | ISO 532-1:2017 Annex B.5 | Time-varying loudness Nmax, technical signal 14 (aircraft, free field) | 22.6399 sone (+/-0.1%) | 22.6399 sone | 0 sone | 0 % | ![Pass][cv-pass] Pass | | ISO 532-1:2017 Annex B.5 | Time-varying loudness Nmax, technical signal 15 (vehicle interior, diffuse field) | 9.6059 sone (+/-0.1%) | 9.6059 sone | 0 sone | 0 % | ![Pass][cv-pass] Pass | | DIN 45692:2009-08 Clause 6 | Sharpness of the standard 1 kHz reference signal | 1 acum (+/-0 acum) | 1 acum | 0 acum | 0 % | ![Pass][cv-pass] Pass | | DIN 45692:2009-08 Table A.2 | Sharpness of critical-band noise at 2.5 kHz (2320-2700 Hz, 4 sone) | 1.78 acum (+/-0.089 acum) | 1.747 acum | -0.033 acum | 37 % | ![Pass][cv-pass] Pass | | ISO 226:2023 Table B.1 | Equal-loudness contour, 60 phon @ 100 Hz | 78.5 dB SPL (+/-0.05 dB SPL) | 78.504 dB SPL | 0.004 dB SPL | 8 % | ![Pass][cv-pass] Pass | | ECMA-418-2:2025 Clause 5.1.8 | HMS loudness of a 1 kHz / 40 dB tone (c_N=0.0211964) | 1 sone_HMS (+/-0.03 sone_HMS) | 0.9843 sone_HMS | -0.0157 sone_HMS | 52 % | ![Pass][cv-pass] Pass | | ECMA-418-2:2025 Clause 6.2.8 | HMS tonality of a 1 kHz / 40 dB tone (c_T=2.8758615) | 1 tu_HMS (+/-0.03 tu_HMS) | 0.9998 tu_HMS | -0.0002 tu_HMS | 1 % | ![Pass][cv-pass] Pass | | ECMA-418-2:2025 Clause 7 | HMS roughness of a 1 kHz / 70 Hz / m=1 / overall 60 dB tone (c_R=0.0180685) | 1 asper (+/-0.01 asper) | 0.9999 asper | -0.0001 asper | 1 % | ![Pass][cv-pass] Pass | | ISO 532-2:2017 Clause 3.17 / Annex B.1 | Moore-Glasberg loudness of a 1 kHz / 40 dB tone (C=0.0617) | 1 sone (+/-0.01 sone) | 1.0001 sone | 0.0001 sone | 1 % | ![Pass][cv-pass] Pass | | ISO 532-3:2023 Annex C.1 | Moore-Glasberg-Schlittenlacher peak LTL, steady 1 kHz / 40 dB | 1 sone (+/-0.02 sone) | 0.9996 sone | -0.0004 sone | 2 % | ![Pass][cv-pass] Pass | | ECMA-418-2:2025 Clause 9 | HMS fluctuation strength of a 1 kHz / 4 Hz / m=1 / overall 60 dB tone (c_F=0.003840572) | 1 vacil_HMS (+/-0.01 vacil_HMS) | 0.9931 vacil_HMS | -0.0069 vacil_HMS | 69 % | ![Pass][cv-pass] Pass |

Speech transmission (IEC 60268-16): 100% (14/14)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | IEC 60268-16:2020 A.2.2 | STI weighting-factor pair (500 Hz + 1 kHz bands) | 0.398 (+/-0.001) | 0.398 | 0 | 0 % | ![Pass][cv-pass] Pass | | IEC 60268-16:2020 A.3.1.2 | Uniform MTF m=0.5 maps to STI=0.5 | 0.5 (+/-0.01) | 0.5 | 0 | 0 % | ![Pass][cv-pass] Pass | | IEC 60268-16 Annex M | Full-STI worked example: printed MTF + speech/noise spectra -> STI | STI 0.76 (MTI row of step 4c) | STI 0.758 (max MTI dev 0.00) | -0.002 | - | ![Pass][cv-pass] Pass | | IEC 60268-16 Annex M | Occupancy-noise adjustment: measured MTF and four level spectra -> STI | STI 0.76 (step 3 matrix, step 4 STI) | STI 0.758 (max MTF dev 0.0009) | -0.002 | - | ![Pass][cv-pass] Pass | | IEC 60268-16 Annex M | Step 2 printed intermediates: the measurement condition, row by row | every printed row of step 2 rounds as tabulated | worst row: amf in dB, 0.99 of its last printed place | 0.993 | 99 % | ![Pass][cv-pass] Pass | | IEC 60268-16 Annex M | Step 3 printed intermediates: the operational condition, row by row | every printed row of step 3 rounds as tabulated | worst row: amf in dB, 0.99 of its last printed place | 0.987 | 99 % | ![Pass][cv-pass] Pass | | IEC 60268-16 Annex M | Step 4a printed intermediates: 98 effective signal-to-noise ratios | all 98 printed effective SNRs | worst cell 0.074 dB from its printed value | 0.074 dB | 92 % | ![Pass][cv-pass] Pass | | IEC 60268-16:2020 C.3.2 | STIPA direct method, Formula (C.1) signal at m=0.2 | 0.3 (+/-0.01) | 0.2992 | -0.0008 | 8 % | ![Pass][cv-pass] Pass | | IEC 60268-16:2020 C.3.2 | STIPA direct method, Formula (C.1) signal at m=0.5 | 0.5 (+/-0.01) | 0.4998 | -0.0002 | 2 % | ![Pass][cv-pass] Pass | | IEC 60268-16:2020 C.3.2 | STIPA direct method, Formula (C.1) signal at m=0.8 | 0.7 (+/-0.01) | 0.7002 | 0.0002 | 2 % | ![Pass][cv-pass] Pass | | IEC 60268-16:2020 C.3.3 | Indirect method: exponential decay RT60=1 s vs Schroeder MTF | 0.5885 (+/-0.005) | 0.5885 | 0 | 0 % | ![Pass][cv-pass] Pass | | IEC 60268-16:2020 C.4.2 | Filter-bank slope: +41 dB unmodulated tone one octave below 125 Hz | m >= 0.5 (C.4.2 pass criterion) | 0.883 | headroom 0.383 | - | ![Pass][cv-pass] Pass | | IEC 60268-16:2020 A.2.2 (audio path) | Weighting factors: modulated 500 Hz + 1 kHz pair through stipa() | 0.398 (+/-0.005) | 0.398 | 0 | 0 % | ![Pass][cv-pass] Pass | | IEC 60268-16:2020 A.3.1.2 (audio path) | Filter-bank phase: half-octave edge carriers at TI=0.9 | 0.9 (+/-0.01) | 0.8981 | -0.0019 | 19 % | ![Pass][cv-pass] Pass |

System measurement (Golay / Kirkeby / Mueller-Massarani): 100% (5/5)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | Havelock 2008 Part I Ch. 6 (Xiang), Eq. (2) | Golay pair: sum of periodic autocorrelations = 2L*delta (L = 4096) | 0 (algebraic identity, +/-1e-10) | 0 | 0 | 0 % | ![Pass][cv-pass] Pass | | Havelock 2008 Part I Ch. 6 (Xiang), Eq. (4) | Golay chain recovers a delay+gain system IR (noiseless, exact) | 0 (machine precision, +/-1e-13) | 0 | 0 | 0 % | ![Pass][cv-pass] Pass | | Kirkeby & Nelson 1999 Eq. (17) / Mueller-Massarani 2001 Sec. 3.1 | In-band equalization residue equals eps/(\|H\|^2 + eps) bin by bin | 0 (closed form, +/-1e-12) | 0 | 0 | 0 % | ![Pass][cv-pass] Pass | | Kirkeby & Nelson 1999 (max of x/(x^2+eps) = 1/(2*sqrt(eps))) | Out-of-band inverse-filter gain within the regularization cap | <= -6.021 dB (analytic cap) | -6.034 dB | headroom +0.013 dB | - | ![Pass][cv-pass] Pass | | Mueller-Massarani 2001 Secs. 4.2-4.3 (group-delay synthesis) | Shaped sweep's Welch spectrum follows the pink target, in-band | 0 dB in-band deviation (+/-0.5 dB) | 0.0652 dB | 0.0652 dB | 13 % | ![Pass][cv-pass] Pass |

Intensity & sound power: 100% (88/88)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | IEC 61043:1993 Clause 5 | Plane-wave intensity I = p^2 / (rho c) | 0.00238 W/m² (+/-1.5%) | 0.00239 W/m² | 0.00001 W/m² | 28 % | ![Pass][cv-pass] Pass | | ISO 3744:2010 Eq. 18 | Monopole hemisphere recovers LW (r=4 m) | 95 dB (+/-0 dB) | 95 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 9614-2:1996 Eq. 12 | Intensity scan recovers LW of an enclosed source | 90 dB (+/-0.000001 dB) | 90 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | IEC 61043:1993 Table 2 | Minimum delta_pI0 per band, probe/processor/instrument, class 1/2 | 132 tabulated minima reproduced | max absolute deviation 0.000 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | IEC 61043:1993 Table 2 Note 1 | Separation rule +10 lg(x/25) on all six columns of 25 mm minima (x = 50 mm) | 3.0103 dB (+/-0 dB) | 3.0103 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | Fahy, Sound Intensity 2e, 6.8 | delta_pI0 = 20 dB is a phase mismatch of 0.26 deg (1 kHz, 25 mm) | 0.26 deg (+/-0.005 deg) | 0.2624 deg | 0.0024 deg | 48 % | ![Pass][cv-pass] Pass | | ISO 9614-1:1993 Eqs (A.1)/(A.2) | Temporal variability F1 is the coefficient of variation of M samples | 0.185164 (+/-0) | 0.185164 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 4871:1996 clause 3.15 / Annex B | Declared L_WAd = L_WA + K_WA (Annex B, L_WA=88, K_WA=2) | 90 dB (+/-0 dB) | 90 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 4871:1996 clause 6.2 | Single-machine verification boundary L_1 <= L_WAd | L_1=90 verified, L_1=91 rejected (L_WAd=90) | 90->True, 91->False | boundary L_1 = L_WAd | - | ![Pass][cv-pass] Pass | | ISO 3741:2010 Eq. 20 | Reverberation-room method inverts to a known LW | 0 dB error | 0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 3744:2010 Eq. 23 / clause 3.4 NOTE 1 | Sound energy level of a source steady over T = 10 s is LW + 10 lg(T/T0) | LJ - LW = 10 dB, 0 dB error | 0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 3744:2010 Eq. 20 | One measurement encompassing Ne = 5 events is 10 lg 5 above one event | 6.9897 dB (+/-0 dB) | 6.9897 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 3741:2010 Eq. 30 | Reverberation-room sound energy level inverts to a known LJ | 0 dB error | 0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 3741:2010 Eq. F.4 | Three equal one-third-octave bands sum to an octave level 10 lg 3 higher | 4.771213 dB (+/-0 dB) | 4.771213 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 3744:2010 Annex G / H.4.2.7 | C1 + C2 of Eq. (G.1)/(G.3) vanish at 120 m altitude and 23 C | 0 dB (+/-0.001 dB) | -0.00005 dB | -0.00005 dB | 5 % | ![Pass][cv-pass] Pass | | ISO 9614-1:1993 Table B.2 | Criterion-2 factor C per band and grade, and the A-weighted grade-3 value | 59 tabulated values of C reproduced | max absolute deviation 0.000 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 9614-1:1993 Table 2 | Standard deviation s of the determination per band and grade | 59 tabulated values of s reproduced | max absolute deviation 0.000 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 9614-1:1993 Table B.1 | Error factor Delta: 0,20 and 0,29 for all bands, 0,60 A-weighted | precision (all bands) = 0.2; engineering (all bands) = 0.29; survey (A-weighted) = 0.6 | precision (all bands) = 0.2; engineering (all bands) = 0.29; survey (A-weighted) = 0.6 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 9614-1:1993 Eq. (12) | Discrete positions tiling a scanned surface give the same LW | 0 dB error | 0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 9614-1:1993 Table B.3 | Five action codes, each reached by the case Figure B.1 routes to it | F1 > 0,6 -> e; F2 > Ld -> ab; (F3 - F2) > 3 dB -> ab; criterion 2, 1 dB <= (F3 - F2) <= 3 dB -> c; criterion 2, (F3 - F2) <= 1 dB -> d | F1 > 0,6 -> e; F2 > Ld -> ab; (F3 - F2) > 3 dB -> ab; criterion 2, 1 dB <= (F3 - F2) <= 3 dB -> c; criterion 2, (F3 - F2) <= 1 dB -> d | 0 of 5 rows disagree | - | ![Pass][cv-pass] Pass | | ISO 9614-1:1993 Eq. (B.4) | New positions N* on the concentrated subset of the measurement surface | N* = 5 positions | N* = 5 positions | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 3747:2010 9.5 EXAMPLE | Expanded uncertainty U = 2 sqrt(1,5^2 + 2^2) dB, grade 2 with sigma_omc = 2,0 dB | 5 dB (+/-0 dB) | 5 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 3747:2010 Table 2 / Eq. 22 | sigma_R0 by grade: 1,5 dB (grade 2) and 4,0 dB (grade 3), sigma_tot of Table E.1 row 2 | sigma_R0 grade 2 = 1.5 dB; sigma_R0 grade 3 = 4 dB; sigma_tot (1,5; 4) = 4.3 dB | sigma_R0 grade 2 = 1.5 dB; sigma_R0 grade 3 = 4 dB; sigma_tot (1,5; 4) = 4.3 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 3747:2010 Eq. 7 / 8.1 | K1 at the 6 dB validity margin, -10 lg(1 - 10^-0,6) = 1,2563 dB, and the 1,3 dB cap below it | K1(6 dB) = 1,2563 dB, K1(2 dB) = 1,3 dB, 4 kHz flagged | 0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 3747:2010 Eq. 11 vs ISO 3741:2010 Eq. 21 | In situ comparison plus C2 equals the reverberation-room comparison (closed form) | 0 dB difference | 0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 3747:2010 Eq. 12 / Eq. 20 | m identical reference-source locations collapse to Eq. 11 / Eq. 19 (closed form) | 0 dB difference | 0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 3747:2010 Eq. 15 / Eq. 17 | N events one at a time and one measurement over N events agree (closed form) | 0 dB difference | 0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 3747:2010 Annex C | C2 at 101,325 kPa and 23,0 degC is 15 lg(296,15/296) = 0,003 300 dB (theta_ref = 296 K) | 0.0033 dB (+/-0 dB) | 0.0033 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 3747:2010 Eq. C.2 | Static pressure at 500 m, 101,325 (1 - 2,2560e-5 x 500)^5,2553 kPa | 95.4609 kPa (+/-0 kPa) | 95.4609 kPa | 0 kPa | 0 % | ![Pass][cv-pass] Pass | | ISO 3747:2010 Table D.1 / Eq. D.1 | LWA of a flat 90 dB octave spectrum, 63 Hz to 8 kHz, with the printed Ck | 96.9871 dB (+/-0 dB) | 96.9871 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 3747:2010 Eq. A.1 | Excess over the spherical free field Lp = LW - 11 - 20 lg(r/r0): a level 7 dB above it reads dLf = 7 dB | 7 dB (+/-0 dB) | 7 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 9295:2015 Table 1 (UNE-EN ISO 9295:2015, PDF page 15, printed folio 15) | Air absorption alpha in Np/m, 18 degC to 22 degC, 40 % to 60 %, 10 000 Hz to 22 400 Hz: Annex A at theta + 273,16 K, to the four decimals printed, in the 303 cells the table prints correctly | 303/303 cells of Table 1 | 303/303 cells of Table 1 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 9295:2015 Table 2 (UNE-EN ISO 9295:2015, PDF page 16, printed folio 16) | Air absorption alpha in Np/m, 23 degC to 27 degC, 40 % to 60 %, 10 000 Hz to 22 400 Hz: Annex A at theta + 273,16 K, to the four decimals printed, in the 278 cells the table prints correctly | 278/278 cells of Table 2 | 278/278 cells of Table 2 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 9295:2015 Table 1 (UNE-EN ISO 9295:2015, PDF page 15, printed folio 15) | The 9 cells Table 1 misprints (docs/ERRATA.md), as printed: each is Annex A at theta + 273,16 K with its first trailing 0 set as the digit before it | 13 500 Hz, 20 degC, 60 %: 0,027 7; 13 500 Hz, 21 degC, 40 %: 0,036 6; 13 500 Hz, 21 degC, 60 %: 0,026 6; 13 500 Hz, 22 degC, 40 %: 0,035 5; 15 500 Hz, 22 degC, 40 %: 0,044 4; 16 500 Hz, 21 degC, 50 %: 0,043 3; 18 000 Hz, 20 degC, 60 %: 0,045 5; 19 000 Hz, 21 degC, 60 %: 0,048 8; 20 000 Hz, 22 degC, 60 %: 0,051 1 | 9/9 printed cells that are Annex A with a 0 set as the digit before it | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 9295:2015 Table 2 (UNE-EN ISO 9295:2015, PDF page 16, printed folio 16) | The 34 cells Table 2 misprints (docs/ERRATA.md), as printed: each is Annex A at theta + 273,16 K with its first trailing 0 set as the digit before it | 10 000 Hz, 27 degC, 50 %: 0,014 4; 11 000 Hz, 25 degC, 50 %: 0,018 8; 11 500 Hz, 23 degC, 50 %: 0,021 1; 13 000 Hz, 25 degC, 60 %: 0,021 1; 13 500 Hz, 27 degC, 60 %: 0,021 1; 14 000 Hz, 24 degC, 40 %: 0,035 5; 14 000 Hz, 24 degC, 60 %: 0,025 5; 14 500 Hz, 24 degC, 50 %: 0,031 1; 14 500 Hz, 25 degC, 40 %: 0,036 6; 14 500 Hz, 25 degC, 50 %: 0,033 0; 14 500 Hz, 27 degC, 50 %: 0,028 8; 14 500 Hz, 27 degC, 60 %: 0,024 4; 15 000 Hz, 24 degC, 50 %: 0,033 3; 15 500 Hz, 24 degC, 50 %: 0,035 5; 15 500 Hz, 27 degC, 40 %: 0,038 8; 16 000 Hz, 24 degC, 40 %: 0,044 4; 16 000 Hz, 24 degC, 60 %: 0,032 2; 16 500 Hz, 23 degC, 60 %: 0,035 5; 17 000 Hz, 25 degC, 50 %: 0,04 4; 18 000 Hz, 23 degC, 60 %: 0,041 1; 18 000 Hz, 27 degC, 60 %: 0,036 6; 18 500 Hz, 24 degC, 40 %: 0,056 6; 18 500 Hz, 24 degC, 50 %: 0,048 8; 19 500 Hz, 23 degC, 50 %: 0,054 4; 20 000 Hz, 24 degC, 60 %: 0,048 8; 20 500 Hz, 23 degC, 40 %: 0,067 7; 20 500 Hz, 24 degC, 40 %: 0,066 6; 21 000 Hz, 23 degC, 60 %: 0,054 4; 21 500 Hz, 23 degC, 40 %: 0,072 2; 21 500 Hz, 24 degC, 40 %: 0,071 1; 21 500 Hz, 27 degC, 60 %: 0,05 50; 22 000 Hz, 24 degC, 60 %: 0,057 7; 22 000 Hz, 25 degC, 50 %: 0,063 3; 22 400 Hz, 25 degC, 50 %: 0,065 5 | 34/34 printed cells that are Annex A with a 0 set as the digit before it | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 9295:2015 Annex A / Tables 1 and 2 | The published Annex A at theta + 273,15 K against the 581 correctly printed cells: within one unit of the fourth decimal | 0 Np/m (+/-0.0001 Np/m) | 0.000063 Np/m | 0.000063 Np/m | 63 % | ![Pass][cv-pass] Pass | | ISO 9295:2015 Formulae (4) and (5) | Room absorption coefficient and room constant from the reverberation time, V = 200 m3, S = 210 m2, T = 0,70 s: alpha_room = 1 - exp(-0,16 V/(S T)), R = S alpha_room / (1 - alpha_room) (closed form) | alpha_room = 0.1956; R (m2) = 51.0716 | alpha_room = 0.1956; R (m2) = 51.0716 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 9295:2015 Formula (7) | Room constant from the air absorption, 8 alpha V / (1 - 8 alpha V / S), at 16 kHz, 23 degC, 50 %, V = 200 m3, S = 210 m2 (closed form) | 86.5581 m² (+/-0 m²) | 86.5581 m² | 0 m² | 0 % | ![Pass][cv-pass] Pass | | ISO 9295:2015 Formula (6) / 10.1 | LW = Lp(ST) - 10 lg(4/R) + C1 + C2: R = 40 m2 raises Lp = 60 dB by 10 dB, plus the C1 and C2 of ISO 3741 at 23 degC and 101,325 kPa and at 30 degC and 90 kPa | 23 degC, 101,325 kPa = 69.8762 dB; 30 degC, 90 kPa = 71.1086 dB | 23 degC, 101,325 kPa = 69.8762 dB; 30 degC, 90 kPa = 71.1086 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 9295:2015 Formulae (8) and (9) | Reference source: LW(FAR) - Lp(FAR) + Lp(ST), and 10 lg(Delta F / 1 Hz) more for a tone read with a 10 Hz noise bandwidth | Formula (8) = 60.0033 dB; Formula (9) = 70.0033 dB | Formula (8) = 60.0033 dB; Formula (9) = 70.0033 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 9295:2015 Formulae (2) and (3) | Moving microphone: Delta f = 2 f v / c at 16 kHz, 0,4 m/s, 345 m/s, and three equal sidebands summing to 10 lg 3 above one | Delta f (Hz) = 37.1014; Ltot (dB) = 54.7712 | Delta f (Hz) = 37.1014; Ltot (dB) = 54.7712 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 9295:2015 Formula (10) | Free-field absorption correction K_alpha = r alpha at r = 4 m, alpha in dB/m (8,686 times Annex A), and none at r = 2 m | 0 dB difference | 0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 9295:2015 Table 3 (UNE-EN ISO 9295:2015, PDF page 24, printed folio 24) | The sound power levels to determine for each type of noise: the six rows, from the A-weighted level alone to the tones within 10 dB of the highest | 6/6 rows of Table 3 | 6/6 rows of Table 3 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 5136:2003 Table D.1 | C3,4 of the sampling tube for d = 0,5 m at U = +/-5, +/-15, +/-30 m/s, 27 bands | 162 tabulated values reproduced to the printed 0,1 dB | max absolute deviation 0.049 dB | 0.049 dB | 98 % | ![Pass][cv-pass] Pass | | ISO 5136:2003 Eqs (D.2)/(D.3) | Worked example: C3,4 = (1,85 + 0,038 U) dB at 1 kHz, U = +15 and -15 m/s | 2,42 dB at +15 m/s and 1,28 dB at -15 m/s reproduced | max absolute deviation below 1e-12 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 5136:2003 Eq. (8) | Nose-cone / foam-ball correction 10 lg[1/(1 - U/c)^2] at U = 20 m/s, c = 340 m/s | 0.52658 dB (+/-0 dB) | 0.52658 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 5136:2003 Eq. (12) | Plane-wave relation LW - Lp = 10 lg(S/S0) - 10 lg(rho c/400), d = 0,5 m | -7.2113 dB (+/-0 dB) | -7.2113 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 5136:2003 Table 2 / Table 3 | Reproducibility sigma_R per band, 50 Hz to 10 kHz, and the extrapolated 12,5 to 20 kHz | 27 tabulated values of sigma_R reproduced | max absolute deviation 0.000 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 5136:2003 Annex C Table C.1 | A-weighting C_j of the 27 bands, read back as LWA - LW of one band at a time | 27 tabulated values of C_j reproduced | max absolute deviation below 1e-12 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 3891:1978 Annex A Table 9 (ISO 8297:1994 10.7) | alpha at 15 °C and 70 % in the octave-centre bands 63 Hz to 8 kHz by the weather path of ISO 8297 10.7, through the shared SAE ARP 866A transcription, against ISO 3891 Table 9 (printed in dB/100 m to one decimal); ISO 8297 Table 3 prints other values at 125 Hz, 4 kHz and 8 kHz | 63 Hz = 0 dB/m; 125 Hz = 0.001 dB/m; 250 Hz = 0.001 dB/m; 500 Hz = 0.002 dB/m; 1000 Hz = 0.005 dB/m; 2000 Hz = 0.01 dB/m; 4000 Hz = 0.025 dB/m; 8000 Hz = 0.061 dB/m | 63 Hz = 0 dB/m; 125 Hz = 0.001 dB/m; 250 Hz = 0.001 dB/m; 500 Hz = 0.002 dB/m; 1000 Hz = 0.005 dB/m; 2000 Hz = 0.01 dB/m; 4000 Hz = 0.025 dB/m; 8000 Hz = 0.061 dB/m | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8297:1994 Table 3 | alpha at 15 °C and 70 % by ISO 3891 Annex A, to the printed digit, in the five rows it reproduces (63 Hz, 250 Hz to 2 kHz; 125 Hz, 4 kHz and 8 kHz are printed otherwise, see the guide) | 63 Hz = 0 dB/m; 250 Hz = 0.001 dB/m; 500 Hz = 0.002 dB/m; 1000 Hz = 0.005 dB/m; 2000 Hz = 0.01 dB/m | 63 Hz = 0 dB/m; 250 Hz = 0.001 dB/m; 500 Hz = 0.002 dB/m; 1000 Hz = 0.005 dB/m; 2000 Hz = 0.01 dB/m | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8297:1994 10.5 NOTE 11 | Proximity term lg(d/(4 sqrt(Sp))) at the two ends 0,5 and 0,05 of 9.1.1 a), to the printed decimal: -0,9 dB and -1,9 dB | d/sqrt(Sp) = 0.5 = -0.9 dB; d/sqrt(Sp) = 0.05 = -1.9 dB | d/sqrt(Sp) = 0.5 = -0.9 dB; d/sqrt(Sp) = 0.05 = -1.9 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8297:1994 Table 2 | Background correction at differences of 6 to 10 dB and at 12 dB, read through plant_background_correction_db | 6 dB = 1 dB; 7 dB = 1 dB; 8 dB = 1 dB; 9 dB = 0.5 dB; 10 dB = 0.5 dB; 12 dB = 0 dB | 6 dB = 1 dB; 7 dB = 1 dB; 8 dB = 1 dB; 9 dB = 0.5 dB; 10 dB = 0.5 dB; 12 dB = 0 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8297:1994 Table 1 | Uncertainty of the method, 95 % interval (lower, upper), at the four printed ratios d/sqrt(Sp) | 0.05 lower = -3.5 dB; 0.05 upper = 3 dB; 0.1 lower = -2.5 dB; 0.1 upper = 2.5 dB; 0.2 lower = -2.5 dB; 0.2 upper = 2 dB; 0.5 lower = -2 dB; 0.5 upper = 1.5 dB | 0.05 lower = -3.5 dB; 0.05 upper = 3 dB; 0.1 lower = -2.5 dB; 0.1 upper = 2.5 dB; 0.2 lower = -2.5 dB; 0.2 upper = 2 dB; 0.5 lower = -2 dB; 0.5 upper = 1.5 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8297:1994 10.4 / 10.8 | Point source on the ground at the centre of a circular contour: L_W(ISO 8297) - L_W(source) = 10 lg((R^2 + R h)/(R^2 + h^2)), 0 as h tends to 0 (closed form, R = 150 m, h = 5 m) | 0.137582 dB (+/-0.00001 dB) | 0.137581 dB | -0.000001 dB | 10 % | ![Pass][cv-pass] Pass | | ISO 8297:1994 9.1.1 b) | Aspect angle of a unit square seen from (0,5; -d): 180 - 2 atan(2 d) degrees at d = 0,1, 0,5 and 2 (closed form) | 0 deg | 0 deg | 0 deg | 0 % | ![Pass][cv-pass] Pass | | ISO 3743-1:2010 9.5 EXAMPLE | Expanded uncertainty U = 2 sqrt(1,5^2 + 2^2) dB = 5 dB, sigma_omc = 2,0 dB | 5 dB (+/-0 dB) | 5 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 3743-1:2010 Table 3 | Typical upper bounds of sigma_R0 per octave band and A-weighted (the '400 to 5 000' row read as 500 Hz to 4 kHz) | 125 Hz = 3 dB; 250 Hz = 2 dB; 500 Hz = 1.5 dB; 1 kHz = 1.5 dB; 2 kHz = 1.5 dB; 4 kHz = 1.5 dB; 8 kHz = 2.5 dB; A = 1.5 dB | 125 Hz = 3 dB; 250 Hz = 2 dB; 500 Hz = 1.5 dB; 1 kHz = 1.5 dB; 2 kHz = 1.5 dB; 4 kHz = 1.5 dB; 8 kHz = 2.5 dB; A = 1.5 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 3743-1:2010 Table C.1 | Total standard deviation of the grade 2 row, sigma_R0 = 1,5 dB, for sigma_omc = 0,5, 2 and 4 dB | sigma_omc 0,5 = 1.6 dB; sigma_omc 2 = 2.5 dB; sigma_omc 4 = 4.3 dB | sigma_omc 0,5 = 1.6 dB; sigma_omc 2 = 2.5 dB; sigma_omc 4 = 4.3 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 3743-1:2010 Eq. 13 / 8.1.3 | K1 at the 6 dB margin is -10 lg(1 - 10^-0,6) = 1,2563 dB, 1,3 dB below it and 0 above 15 dB | K1(6 dB) = 1.2563 dB; K1(4 dB) = 1.3 dB; K1(15,5 dB) = 0 dB | K1(6 dB) = 1.2563 dB; K1(4 dB) = 1.3 dB; K1(15,5 dB) = 0 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 3743-1:2010 Eq. 14 vs ISO 3747:2010 Eq. 11 | The hard-walled comparison and the in situ comparison give the same LW with the background negligible (closed form) | 0 dB difference | 0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 3743-1:2010 Eq. 20 / clause 3.4 NOTE 1 | A source steady over T = 10 s: LJ = LW + 10 lg(T/T0) band for band, background carried over the same T | 0 dB difference | 0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 3743-1:2010 Eq. 15 / Eq. 16 | Ne events one at a time and one measurement over Ne events agree (closed form) | 0 dB difference | 0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 3743-1:2010 Annex A | C2 at 500 m and 23,0 degC from Eq. (A.2): 0,26 dB (not the 0,4 dB of C.4.2.5) | 0.26 dB (+/-0.005 dB) | 0.2622 dB | 0.0022 dB | 44 % | ![Pass][cv-pass] Pass | | ISO 3743-1:2010 Table B.1 / Eq. B.1 | LWA of a flat 90 dB octave spectrum, 63 Hz to 8 kHz, with the printed Ck | 96.9871 dB (+/-0 dB) | 96.9871 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 3743-1:2010 4.2 | Room volume and reference box: 40 m3 and 40 boxes; 1,0 m up to 100 m3, 2,0 m above | 6/6 room and box verdicts | 6/6 room and box verdicts | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 3743-1:2010 Table 2 | Source locations from sM: 1 up to 2,5 dB, 2 up to 4,0 dB, 2 plus 2 in another room above | 3/3 Table 2 rows | 3/3 Table 2 rows | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 3743-1:2010 Eq. 24 / ISO 3743-2:2018 Formula 14 | sigma'_R0 = sqrt(sigma'_tot^2 - sigma'_omc^2) = 2,0 dB for 2,5 dB and 1,5 dB (the minus of Part 1; Part 2 prints a plus) | 2 dB (+/-0 dB) | 2 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 3743-1:2010 4.5 vs ISO 11546-2:1995 Table C.1 | The 6 dB background margin the determination holds to is the one ISO 11546-2 tabulates for ISO 3743-1 | ISO 3743-1 4.5 = 6 dB; ISO 11546-2 Table C.1 = 6 dB | ISO 3743-1 4.5 = 6 dB; ISO 11546-2 Table C.1 = 6 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 3743-2:2018 11.5 EXAMPLE | Expanded uncertainty U = 2 sqrt(2^2 + 2^2) dB = 5,7 dB, sigma_omc = 2,0 dB | 5.7 dB (+/-0.05 dB) | 5.6569 dB | -0.0431 dB | 86 % | ![Pass][cv-pass] Pass | | ISO 3743-2:2018 Table 5 | Typical upper bounds of sigma_R0 per octave band and A-weighted | 125 Hz = 5 dB; 250 Hz = 3 dB; 500 Hz = 2 dB; 1 kHz = 2 dB; 2 kHz = 2 dB; 4 kHz = 2 dB; 8 kHz = 3 dB; A = 2 dB | 125 Hz = 5 dB; 250 Hz = 3 dB; 500 Hz = 2 dB; 1 kHz = 2 dB; 2 kHz = 2 dB; 4 kHz = 2 dB; 8 kHz = 3 dB; A = 2 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 3743-2:2018 Table D.1 | Total standard deviation of the grade 2 row, sigma_R0 = 2 dB, for sigma_omc = 0,5, 2,0 and 4,0 dB | sigma_omc 0,5 = 2.1 dB; sigma_omc 2,0 = 2.8 dB; sigma_omc 4,0 = 4.5 dB | sigma_omc 0,5 = 2.1 dB; sigma_omc 2,0 = 2.8 dB; sigma_omc 4,0 = 4.5 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 3743-2:2018 Formula 1 / Formula B.2 | R at 1 000 Hz for a 70 m3 room is the 1,06 of Formula (B.2) | 1.06 (+/-0.005) | 1.0624 | 0.0024 | 48 % | ![Pass][cv-pass] Pass | | ISO 3743-2:2018 Formula B.2 | A room that follows the curve exactly centres on Tnom = T1000 / R(1 000 Hz) (closed form) | 0.753041 s (+/-0 s) | 0.753041 s | 0 s | 0 % | ![Pass][cv-pass] Pass | | ISO 3743-2:2018 B.5 EXAMPLE | T1000 = 0,8 s on the curve of Figure B.4: the printed T/Tnom = 1,09 is the midpoint of the extreme ratios against 0,9 and 1,1 alone (within 0,015), and as Tnom = 0,73 s it puts 250 Hz above 1,1 R; the library's centring qualifies the room at 0,76 s, a departure of 0,17 dB in LW (see the errata) | 4/4 B.5 readings | 4/4 B.5 readings | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 3743-2:2018 Clause 5 | The noise source should not exceed 1 % of the room: 0,7 m3 in the minimum 70 m3 room is within the recommendation, 0,71 m3 is not, and neither moves the verdict | 2/2 clause 5 readings | 2/2 clause 5 readings | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 3743-2:2018 6.3 | Limiting curves 0,9 and 1,1 times R Tnom up to 6,3 kHz, 0,8 and 1,2 above | 6,3 kHz low = 0.9; 6,3 kHz high = 1.1; 8 kHz low = 0.8; 8 kHz high = 1.2 | 6,3 kHz low = 0.9; 6,3 kHz high = 1.1; 8 kHz low = 0.8; 8 kHz high = 1.2 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 3743-2:2018 Table 1 | Maximum permitted differences of the reference-source evaluation of 6.7 | 125 Hz = 5 dB; 250 Hz = 3 dB; 500 Hz = 3 dB; 1 kHz = 3 dB; 2 kHz = 3 dB; 4 kHz = 3 dB; 8 kHz = 4 dB | 125 Hz = 5 dB; 250 Hz = 3 dB; 500 Hz = 3 dB; 1 kHz = 3 dB; 2 kHz = 3 dB; 4 kHz = 3 dB; 8 kHz = 4 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 3743-2:2018 6.7 / Table 1 | Each band is suitable at its Table 1 difference read high or low, and not 0,1 dB beyond it on either side | 28/28 Table 1 verdicts | 28/28 Table 1 verdicts | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 6926:2016 8.4 / ISO 3743-2:2018 6.7 | The calibration as the suitability evaluation reads it at 20 degC and 90 kPa: one-third octaves of 76, 80 and 83 dB over the 2 m hemisphere, the 1 kHz octave their energy sum less the calibration's own C2 of 0,483 dB for a source of unknown radiation, dB (closed form) | 98.7 dB (+/-0 dB) | 98.7 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 3743-2:2018 6.7 / Table 1 | With a calibration read at 20 degC and 90 kPa, each band is suitable at its Table 1 difference below the calibration and not 0,1 dB beyond it; with the calibration read at the default 23,0 degC and 101,325 kPa instead, 0,482 dB higher, the band at its limit is not | 21/21 Table 1 verdicts with a calibration | 21/21 Table 1 verdicts with a calibration | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 6926:2016 8.4 / ISO 3743-1:2010 Eq. 14 / ISO 3743-2:2018 Formula 10 | Both comparisons read a calibration at 20 degC and 90 kPa: the 1 kHz octave less its own C2 of 0,483 dB, plus the 4 dB the source under test is louder, and carried to the reference conditions by the 0,452 dB C2 of Annex A (Part 1) and Annex E (Part 2), dB (closed form) | ISO 3743-1 LW = 102.1649 dB; ISO 3743-1 LW ref = 102.6167 dB; ISO 3743-2 LW = 102.1649 dB; ISO 3743-2 LW ref = 102.6167 dB | ISO 3743-1 LW = 102.1649 dB; ISO 3743-1 LW ref = 102.6167 dB; ISO 3743-2 LW = 102.1649 dB; ISO 3743-2 LW ref = 102.6167 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 3743-2:2018 Table 3 | Minimum number of source locations for 3, 6 and 12 microphone positions, every band row and the A-weighted row | 45/45 Table 3 cells | 45/45 Table 3 cells | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 3743-2:2018 Table 4 | Background corrections: 2, 2, 1, 1, 1, 0,5, 0,5 dB for 4 dB to 10 dB, 0 above | 4 dB = 2 dB; 5 dB = 2 dB; 6 dB = 1 dB; 7 dB = 1 dB; 8 dB = 1 dB; 9 dB = 0.5 dB; 10 dB = 0.5 dB; 11 dB = 0 dB | 4 dB = 2 dB; 5 dB = 2 dB; 6 dB = 1 dB; 7 dB = 1 dB; 8 dB = 1 dB; 9 dB = 0.5 dB; 10 dB = 0.5 dB; 11 dB = 0 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 3743-2:2018 Formula 9 | Direct method LW = Lp - 10 lg(Tnom/T0) + 10 lg(V/V0) - 13 dB in a 70 m3 room, Tnom = 0,73 s (closed form) | 0 dB difference | 0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 3743-2:2018 Formula 10 vs ISO 3743-1:2010 Eq. 14 | The comparison methods of the two parts agree with the background negligible (closed form) | 0 dB difference | 0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 3743-2:2018 10.3 a) / Table 4 | The reference levels take Table 4 before Formula (10): ST 75 dB, RSS 80 dB, LWr 90 dB and a 5 dB reference margin give Lpr 78 dB and LW 87 dB (closed form) | 87 dB (+/-0.000000001 dB) | 87 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 3743-2:2018 Formula 2 | H (theta + 5 degC) within +/-10 % of its value during the reverberation measurement: +10 % passes, +12 % fails, and 80 % at 10 degC passes against 50 % at 20 degC only through the 5 degC | 3/3 climate verdicts | 3/3 climate verdicts | exact | 0 % | ![Pass][cv-pass] Pass |

Emission sound pressure level (ISO 11200 group): 100% (6/6)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ISO 11200:2014 Table B.2 local environmental correction | K_3A at a work station 1,6 m from the dominating source, dB | 3.7 dB (+/-0.05 dB) | 3.749 dB | 0.049 dB | 98 % | ![Pass][cv-pass] Pass | | ISO 11200:2014 Table B.2 emission sound pressure level | L_pA at the work station, the energy mean less K_3A, dB | 73.2 dB (+/-0.05 dB) | 73.176 dB | -0.024 dB | 48 % | ![Pass][cv-pass] Pass | | ISO 11200:2014 Table B.2 expanded uncertainty | U from sigma_R0 = 1,5 dB and sigma_omc = 1,0 dB at k = 1,6, dB | 2.9 dB (+/-0.05 dB) | 2.884 dB | -0.016 dB | 32 % | ![Pass][cv-pass] Pass | | ISO 11200:2014 Table B.3 background-noise correction | K_1A for a 9 dB margin over the background, dB | 0.6 dB (+/-0.05 dB) | 0.584 dB | -0.016 dB | 32 % | ![Pass][cv-pass] Pass | | ISO 11200:2014 Table B.3 operating standard deviation | sigma_omc of three readings by Equation (C.1), dB | 2 dB (+/-0.05 dB) | 1.997 dB | -0.003 dB | 6 % | ![Pass][cv-pass] Pass | | ISO 11204:2010 A.1.2 the two routes to the ratio z | z from K_2 against z from the absorption area, dimensionless | 0.423423423 (+/-0) | 0.423423423 | 0 | 0 % | ![Pass][cv-pass] Pass |

Free-field qualification & reference sound sources: 100% (31/31)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ISO 26101:2017 Table A.1 / ISO 3745:2012/Amd.1:2017 Table A.1 | Allowable deviation from the inverse square law, anechoic room, at 630, 800, 5 000 and 6 300 Hz, dB | 630 Hz = 1.5 dB; 800 Hz = 1 dB; 5000 Hz = 1 dB; 6300 Hz = 1.5 dB | 630 Hz = 1.5 dB; 800 Hz = 1 dB; 5000 Hz = 1 dB; 6300 Hz = 1.5 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 26101:2017 Table A.1 / ISO 3745:2012/Amd.1:2017 Table A.1 | Allowable deviation from the inverse square law, hemi-anechoic room, at 630, 800, 5 000 and 6 300 Hz, dB | 630 Hz = 2.5 dB; 800 Hz = 2 dB; 5000 Hz = 2 dB; 6300 Hz = 3 dB | 630 Hz = 2.5 dB; 800 Hz = 2 dB; 5000 Hz = 2 dB; 6300 Hz = 3 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 26101:2017 Table B.1 | Allowable deviation in directionality of the test source, anechoic and hemi-anechoic, at 630, 800, 6 300 and 12 500 Hz, dB | anechoic 630 Hz = 1.5 dB; anechoic 800 Hz = 2 dB; anechoic 6300 Hz = 2.5 dB; anechoic 12500 Hz = 5 dB; hemi-anechoic 630 Hz = 2 dB; hemi-anechoic 800 Hz = 2.5 dB; hemi-anechoic 6300 Hz = 3 dB; hemi-anechoic 12500 Hz = 5 dB | anechoic 630 Hz = 1.5 dB; anechoic 800 Hz = 2 dB; anechoic 6300 Hz = 2.5 dB; anechoic 12500 Hz = 5 dB; hemi-anechoic 630 Hz = 2 dB; hemi-anechoic 800 Hz = 2.5 dB; hemi-anechoic 6300 Hz = 3 dB; hemi-anechoic 12500 Hz = 5 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 3745:2012/Amd.1:2017 A.2.3 | Frequencies evaluated from 100 Hz to 10 000 Hz: one-third octaves below 125 Hz and above 4 000 Hz, octave mid-bands between | 11/11 frequencies | 11/11 frequencies | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 26101:2017 Formulae (2) and (4) | An exact inverse-square field, six traverses 0,30 m to 3,00 m: the qualified radius is the end of the traverses, m (closed form) | 3 m (+/-0 m) | 3 m | 0 m | 0 % | ![Pass][cv-pass] Pass | | ISO 26101:2017 Formulae (2) and (4) | The same field: the largest deviation from the inverse square law, dB (closed form) | 0 dB (+/-0 dB) | 0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 26101:2017 Formula (3) | Starting value of b for L_pi = 85,0 / 80,5 / 76,0 / 73,5 dB at 0,5 / 1,0 / 1,5 / 2,0 m, the mean of 20 lg(r_i/r0) + L_pi, dB | 79.6305 dB (+/-0 dB) | 79.6305 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 26101:2017 Formulae (2) and (4) | One incoherent reflection, rho^2 = 1 from a wall 2,5 m ahead, 1 kHz in an anechoic room: the qualified distance is the last point before D(r) - D(r1) = 2 dB, m (closed form) | 2.15 m (+/-0 m) | 2.15 m | 0 m | 0 % | ![Pass][cv-pass] Pass | | ISO 26101:2017 Formulae (2) and (4) | The same reflection: the spread of the deviations within the qualified distance equals the spread of the excess D(r), dB (closed form) | 1.9032 dB (+/-0 dB) | 1.9032 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 26101:2017 Formula (1) | A source drifting by 0 to 0,8 dB along the traverse, seen by the monitor microphone: the largest deviation left after the correction, dB | 0 dB (+/-0 dB) | 0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 6926:2016 Table 1 | Largest standard deviation under repeatability conditions at 80, 160 and 200 Hz, read as the limit of a 3-repetition check, dB | 80 Hz = 0.8 dB; 160 Hz = 0.4 dB; 200 Hz = 0.2 dB | 80 Hz = 0.8 dB; 160 Hz = 0.4 dB; 200 Hz = 0.2 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 6926:2016 Formula (1) | sigma_r of 80,0 / 80,2 / 79,9 dB about their energy average, dB (closed form) | 0.15277 dB (+/-0 dB) | 0.15277 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 6926:2016 Table 2 | Standard deviation of reproducibility, one-third octave rows, three columns, 15 cells | 15/15 cells | 15/15 cells | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 6926:2016 Annex A, Formulae (A.2) to (A.5) | C2 at 30 degC and 95 kPa for a monopole below and above its knee, an aerodynamic dipole and a source of unknown radiation, dB (closed form) | (A.2) = 0.4354 dB; (A.3) = 0.3318 dB; (A.4) = 0.5391 dB; (A.5) = 0.3577 dB | (A.2) = 0.4354 dB; (A.3) = 0.3318 dB; (A.4) = 0.5391 dB; (A.5) = 0.3577 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 6926:2016 Formula (2) | L_W of a uniform 80 dB over the 2 m hemisphere at the reference conditions, with a(f) = 0,01 dB/m, 1 kHz, dB (closed form) | 93.8971 dB (+/-0 dB) | 93.8971 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 6926:2016 5.4 | Spectra at the edges of 5.4: a 12,0 dB range and a 3,0 dB step pass, 12,5 dB and 3,1 dB fail; extended to 50 Hz, steps of 4,0 dB pass and one of 4,1 dB fails, and with every step within 4 dB a 16,0 dB range passes and 16,5 dB fails | 12,0 dB range = 1; 12,5 dB range = 0; 3,0 dB step = 1; 3,1 dB step = 0; extended, 12 dB and 4 dB steps = 1; extended, a 4,1 dB step = 0; extended, 16,0 dB = 1; extended, 16,5 dB = 0 | 12,0 dB range = 1; 12,5 dB range = 0; 3,0 dB step = 1; 3,1 dB step = 0; extended, 12 dB and 4 dB steps = 1; extended, a 4,1 dB step = 0; extended, 16,0 dB = 1; extended, 16,5 dB = 0 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 6926:2016 5.6.3 | Recalibration limit, 2,83 times Table 1, at 80, 125 and 1 000 Hz, dB | 80 Hz = 2.264 dB; 125 Hz = 1.132 dB; 1000 Hz = 0.566 dB | 80 Hz = 2.264 dB; 125 Hz = 1.132 dB; 1000 Hz = 0.566 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 6926:2016 Table 1 | At the edge of every row: three repetitions whose sigma_r of Formula (1) equals the limit pass and 0,01 dB more fail, at 80 Hz (0,8 dB), 160 Hz (0,4 dB) and 200 Hz (0,2 dB) | 80 Hz, 0,80 dB = 1; 80 Hz, 0,81 dB = 0; 160 Hz, 0,40 dB = 1; 160 Hz, 0,41 dB = 0; 200 Hz, 0,20 dB = 1; 200 Hz, 0,21 dB = 0 | 80 Hz, 0,80 dB = 1; 80 Hz, 0,81 dB = 0; 160 Hz, 0,40 dB = 1; 160 Hz, 0,41 dB = 0; 200 Hz, 0,20 dB = 1; 200 Hz, 0,21 dB = 0 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 6926:2016 5.6.3 | At the edge of every row of Table 1: a change of exactly 2,83 times it calls for no recalibration and 0,01 dB more does, at 80 Hz (2,264 dB), 125 Hz (1,132 dB) and 1 000 Hz (0,566 dB) | 80 Hz, 2,264 dB = 1; 80 Hz, 2,274 dB = 0; 125 Hz, 1,132 dB = 1; 125 Hz, 1,142 dB = 0; 1000 Hz, 0,566 dB = 1; 1000 Hz, 0,576 dB = 0 | 80 Hz, 2,264 dB = 1; 80 Hz, 2,274 dB = 0; 125 Hz, 1,132 dB = 1; 125 Hz, 1,142 dB = 0; 1000 Hz, 0,566 dB = 1; 1000 Hz, 0,576 dB = 0 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 3745:2012/Amd.1:2017 A.2.5 | Reflecting plane: an absorption coefficient of 0,06 passes and 0,07 fails; with 125 Hz the lowest band, a plane extending 0,75 m beyond the surface passes and 0,74 m fails, the 0,75 m binding over the 0,686 m quarter wavelength; with 100 Hz the lowest, the quarter wavelength of 0,857 5 m binds, and 0,857 5 m passes and 0,857 4 m fails | 0,06 = 1; 0,07 = 0; 0,75 m = 1; 0,74 m = 0; 0,857 5 m = 1; 0,857 4 m = 0 | 0,06 = 1; 0,07 = 0; 0,75 m = 1; 0,74 m = 0; 0,857 5 m = 1; 0,857 4 m = 0 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 3745:2012/Amd.1:2017 A.3.3 | Traverse paths: four fail, five and eight pass, nine fail; in a hemi-anechoic room a path 20 deg and 80 deg from the vertical passes, 19,9 deg and 80,1 deg fail | 4 traverses = 0; 5 traverses = 1; 8 traverses = 1; 9 traverses = 0; 19,9 deg = 0; 20 deg = 1; 80 deg = 1; 80,1 deg = 0 | 4 traverses = 0; 5 traverses = 1; 8 traverses = 1; 9 traverses = 0; 19,9 deg = 0; 20 deg = 1; 80 deg = 1; 80,1 deg = 0 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 3745:2012/Amd.1:2017 A.4.3 | Points within the radius: five traverses of 10 pass, five of 9 (45 in all) fail, and six of 10, 10, 10, 10, 10 and 9 fail; four of 13, 13, 12 and 12 (50 in all) pass and four of 13, 12, 12 and 12 (49 in all) fail; the spacing at 500 Hz, 100 mm passes and 101 mm fails, and at 125 Hz a tenth of a wavelength, 274,4 mm, passes and 274,5 mm fails | 5 x 10 = 1; 5 x 9 = 0; 5 x 10 + 9 = 0; 13, 13, 12, 12 = 1; 13, 12, 12, 12 = 0; 100 mm at 500 Hz = 1; 101 mm at 500 Hz = 0; 274,4 mm at 125 Hz = 1; 274,5 mm at 125 Hz = 0 | 5 x 10 = 1; 5 x 9 = 0; 5 x 10 + 9 = 0; 13, 13, 12, 12 = 1; 13, 12, 12, 12 = 0; 100 mm at 500 Hz = 1; 101 mm at 500 Hz = 0; 274,4 mm at 125 Hz = 1; 274,5 mm at 125 Hz = 0 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 26101:2017 A.4.3 | Spatial resolution: at 2 kHz, 25 mm passes and 26 mm fails; at 500 Hz, a tenth of a wavelength, 68,6 mm, passes and 68,7 mm fails | 25 mm at 2 kHz = 1; 26 mm at 2 kHz = 0; 68,6 mm at 500 Hz = 1; 68,7 mm at 500 Hz = 0 | 25 mm at 2 kHz = 1; 26 mm at 2 kHz = 0; 68,6 mm at 500 Hz = 1; 68,7 mm at 500 Hz = 0 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 26101:2017 5.1.4.3 | Traverse length at 100 Hz, a quarter wavelength of 0,857 5 m: a start at 0,857 5 m passes and 0,857 6 m fails; a run of 0,857 5 m passes and 0,857 4 m fails | start 0,857 5 m = 1; start 0,857 6 m = 0; run 0,857 5 m = 1; run 0,857 4 m = 0 | start 0,857 5 m = 1; start 0,857 6 m = 0; run 0,857 5 m = 1; run 0,857 4 m = 0 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 26101:2017 5.1.2.2 c) | Levels 6,0 dB above the background at every point pass, 5,9 dB fail | 6,0 dB = 1; 5,9 dB = 0 | 6,0 dB = 1; 5,9 dB = 0 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 26101:2017 Table A.1 / ISO 3745:2012/Amd.1:2017 Table A.1 | At the edge of every cell: a traverse whose deviations reach the limit either way qualifies to its last point, and 0,005 dB past it ends one point short; anechoic and hemi-anechoic, at 500 Hz, 1 000 Hz and 8 000 Hz | anechoic 500 Hz, ±1,5 dB = 1; anechoic 500 Hz, past it = 0; anechoic 1000 Hz, ±1,0 dB = 1; anechoic 1000 Hz, past it = 0; anechoic 8000 Hz, ±1,5 dB = 1; anechoic 8000 Hz, past it = 0; hemi-anechoic 500 Hz, ±2,5 dB = 1; hemi-anechoic 500 Hz, past it = 0; hemi-anechoic 1000 Hz, ±2,0 dB = 1; hemi-anechoic 1000 Hz, past it = 0; hemi-anechoic 8000 Hz, ±3,0 dB = 1; hemi-anechoic 8000 Hz, past it = 0 | anechoic 500 Hz, ±1,5 dB = 1; anechoic 500 Hz, past it = 0; anechoic 1000 Hz, ±1,0 dB = 1; anechoic 1000 Hz, past it = 0; anechoic 8000 Hz, ±1,5 dB = 1; anechoic 8000 Hz, past it = 0; hemi-anechoic 500 Hz, ±2,5 dB = 1; hemi-anechoic 500 Hz, past it = 0; hemi-anechoic 1000 Hz, ±2,0 dB = 1; hemi-anechoic 1000 Hz, past it = 0; hemi-anechoic 8000 Hz, ±3,0 dB = 1; hemi-anechoic 8000 Hz, past it = 0 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 26101:2017 Table B.1 | At the edge of every cell: a test source whose extreme positions lie on the allowable deviation either way is uniform enough, and 0,01 dB past it is not; anechoic and hemi-anechoic, at 630, 800, 6 300 and 12 500 Hz | anechoic 630 Hz, ±1,5 dB = 1; anechoic 630 Hz, past it = 0; anechoic 800 Hz, ±2,0 dB = 1; anechoic 800 Hz, past it = 0; anechoic 6300 Hz, ±2,5 dB = 1; anechoic 6300 Hz, past it = 0; anechoic 12500 Hz, ±5,0 dB = 1; anechoic 12500 Hz, past it = 0; hemi-anechoic 630 Hz, ±2,0 dB = 1; hemi-anechoic 630 Hz, past it = 0; hemi-anechoic 800 Hz, ±2,5 dB = 1; hemi-anechoic 800 Hz, past it = 0; hemi-anechoic 6300 Hz, ±3,0 dB = 1; hemi-anechoic 6300 Hz, past it = 0; hemi-anechoic 12500 Hz, ±5,0 dB = 1; hemi-anechoic 12500 Hz, past it = 0 | anechoic 630 Hz, ±1,5 dB = 1; anechoic 630 Hz, past it = 0; anechoic 800 Hz, ±2,0 dB = 1; anechoic 800 Hz, past it = 0; anechoic 6300 Hz, ±2,5 dB = 1; anechoic 6300 Hz, past it = 0; anechoic 12500 Hz, ±5,0 dB = 1; anechoic 12500 Hz, past it = 0; hemi-anechoic 630 Hz, ±2,0 dB = 1; hemi-anechoic 630 Hz, past it = 0; hemi-anechoic 800 Hz, ±2,5 dB = 1; hemi-anechoic 800 Hz, past it = 0; hemi-anechoic 6300 Hz, ±3,0 dB = 1; hemi-anechoic 6300 Hz, past it = 0; hemi-anechoic 12500 Hz, ±5,0 dB = 1; hemi-anechoic 12500 Hz, past it = 0 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 6926:2016 Table B.1 | Pressure and intensity sound power levels at the edges of the tolerance: 4,0 dB apart at 50 Hz and 1,0 dB at 315 Hz agree, 4,1 dB and 1,1 dB do not | 50 Hz, 4,0 dB = 1; 50 Hz, 4,1 dB = 0; 315 Hz, 1,0 dB = 1; 315 Hz, 1,1 dB = 0 | 50 Hz, 4,0 dB = 1; 50 Hz, 4,1 dB = 0; 315 Hz, 1,0 dB = 1; 315 Hz, 1,1 dB = 0 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 6926:2016 5.2 / ISO 6926:2016 5.5 | A change of 0,30 dB over the declared supply range passes and 0,31 dB fails; a highest directivity index of 6,0 dB passes and 6,1 dB fails | 0,30 dB = 1; 0,31 dB = 0; 6,0 dB = 1; 6,1 dB = 0 | 0,30 dB = 1; 0,31 dB = 0; 6,0 dB = 1; 6,1 dB = 0 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 6926:2016 Formula (2) | L_W of a uniform 80 dB over the 2 m hemisphere at 30 degC and 95 kPa, C1 and the C2 of a source of unknown radiation evaluated by hand, 1 kHz, dB (closed form) | 94.5636 dB (+/-0 dB) | 94.5636 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 6926:2016 8.4 / ISO 3741:2010 Eq. 21 | A calibration read by an ISO 3741 comparison at 20 degC and 90 kPa: L_W less its own C2 at the test, 0,483 dB for a source of unknown radiation, plus 4 dB and ISO 3741's C2 of 0,452 dB, 1 kHz, dB (closed form) | 97.8454 dB (+/-0 dB) | 97.8454 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass |

Service-equipment sound in buildings (ISO/DIS 16032:2023): 100% (22/22)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ISO/DIS 16032:2023 Clause 9 | Correction for a background 4 dB below | 2.2 dB (+/-0.05 dB) | 2.2 dB | 0.005 dB | 10 % | ![Pass][cv-pass] Pass | | ISO/DIS 16032:2023 Clause 9 | Correction held at 2,2 dB below 4 dB | 3/3 bands held at 2,2 dB | 3/3 bands held at 2,2 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO/DIS 16032:2023 Clause 9 | Thresholds of 10 dB and 4 dB met by decimal levels | 2/2 bands placed as Clause 9 reads | 2/2 bands placed as Clause 9 reads | exact | 0 % | ![Pass][cv-pass] Pass | | ISO/DIS 16032:2023 Clause 9, Formulae (7) to (9) | Correction from 4 dB to 10 dB is the energy subtraction | 0 dB (+/-0 dB) | 0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO/DIS 16032:2023 Annex A, Table A.1 | A-weighting, one-third-octave and octave | 36/36 A-weighting cells of Table A.1 | 36/36 A-weighting cells of Table A.1 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO/DIS 16032:2023 Annex A, Table A.1 against IEC 61672-1:2013 Table 3 | C-weighting: printed cells kept, misprinted cells from IEC 61672-1 | 36/36 C-weighting cells: 26 as printed, 10 from IEC 61672-1 | 36/36 C-weighting cells | exact | 0 % | ![Pass][cv-pass] Pass | | ISO/DIS 16032:2023 Clause 10, Table 2 | Reproducibility standard deviations | 38/38 cells of Table 2 | 38/38 cells of Table 2 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO/DIS 16032:2023 Formula (1) and 7.5 | Band average of three readings, to 0,1 dB | 43.7 dB (+/-0 dB) | 43.7 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO/DIS 16032:2023 Formula (5) and 7.7 | Standardization by T = 2 T0 in 50 Hz to 5 000 Hz (octaves 63 Hz to 4 000 Hz) only | 0 dB (+/-0 dB) | 0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO/DIS 16032:2023 Formula (6) | Normalization of an equivalent absorption area of 16 m² to A0 = 10 m² at 1 kHz | 42.0412 dB (+/-0.0001 dB) | 42.0412 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO/DIS 16032:2023 Formula (2) and 7.8 | LA,eq of a flat 40 dB spectrum over 50 Hz to 5 000 Hz | 51.0004 dB (+/-0 dB) | 51.0004 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO/DIS 16032:2023 Formula (3) and 7.8 | LC,eq of a flat 40 dB spectrum over 25 Hz to 10 000 Hz | 53.5507 dB (+/-0 dB) | 53.5507 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO/DIS 16032:2023 7.8 | Single numbers rounded to whole decibels | 3/3 single numbers rounded as 7.8 reads | 3/3 single numbers rounded as 7.8 reads | exact | 0 % | ![Pass][cv-pass] Pass | | ISO/DIS 16032:2023 7.4.1 | Position ladder at its thresholds | 8/8 stages decided as 7.4.1 reads | 8/8 stages decided as 7.4.1 reads | exact | 0 % | ![Pass][cv-pass] Pass | | ISO/DIS 16032:2023 7.2 and 7.3 | Distances and heights of the positions at each limit | 26/26 limits decided as 7.2 and 7.3 read | 26/26 limits decided as 7.2 and 7.3 read | exact | 0 % | ![Pass][cv-pass] Pass | | ISO/DIS 16032:2023 7.9 | Additional position for a source in the room | 3/3 positions placed as 7.9 reads | 3/3 positions placed as 7.9 reads | exact | 0 % | ![Pass][cv-pass] Pass | | ISO/DIS 16032:2023 7.2 | Corner microphone at least 0,2 m from any obstacle | 3/3 obstacle distances judged as 7.2 reads | 3/3 obstacle distances judged as 7.2 reads | exact | 0 % | ![Pass][cv-pass] Pass | | ISO/DIS 16032:2023 Clause 5 | Calibration deviating by more than 0,5 dB | 4/4 calibrations judged as Clause 5 reads | 4/4 calibrations judged as Clause 5 reads | exact | 0 % | ![Pass][cv-pass] Pass | | ISO/DIS 16032:2023 7.6 | Background measured over approximately 30 s | 8/8 durations held to 30 s within a tolerance | 8/8 durations held to 30 s within a tolerance | exact | 0 % | ![Pass][cv-pass] Pass | | ISO/DIS 16032:2023 Clause 9, NOTE | Varying background: maximum over 10 min to 15 min, 10 dB or more below | 7/7 cases judged as the NOTE reads | 7/7 cases judged as the NOTE reads | exact | 0 % | ![Pass][cv-pass] Pass | | ISO/DIS 16032:2023 Clause 9 | Maximum less than 5 dB above the equivalent level in each period | 4/4 periods judged as Clause 9 reads | 4/4 periods judged as Clause 9 reads | exact | 0 % | ![Pass][cv-pass] Pass | | ISO/DIS 16032:2023 7.8, NOTE | Calculated single numbers within 2 dB of the instrument | 4/4 comparisons judged as 7.8 reads | 4/4 comparisons judged as 7.8 reads | exact | 0 % | ![Pass][cv-pass] Pass |

Building prediction & uncertainty: 100% (15/15)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | EN 12354-1:2000 Annex H.3 | Airborne prediction R'w (direct + 12 flanking paths) | R'w 52 dB (13 paths) | R'w 52 dB (13 paths, 52.17) | +0.17 dB | - | ![Pass][cv-pass] Pass | | EN 12354-1:2000 Annex H.3 (paths) | All 12 printed flanking-path values Rij,w | max abs(Rij,w - printed) <= 0,05 dB | 0.042 dB | 0.042 dB | 84 % | ![Pass][cv-pass] Pass | | EN 12354-1:2000 Formula (5b) / Annex H.3 | DnT,w closure from R'w (both H.3 examples -> 54 dB) | DnT,w 54 dB (printed 53,8/54,3) | DnT,w 53.63 / 54.13 dB | -0.17 dB vs printed | - | ![Pass][cv-pass] Pass | | EN 12354-2:2000 Annex E.3 | Impact prediction L'n,w = Ln,w,eq - dLw + K | 45 dB (+/-0 dB) | 45 dB | 0 dB | - | ![Pass][cv-pass] Pass | | EN 12354-2:2000 Formula (3) / Annex E.3 | Standardized impact level L'nT,w (exact 0,032 V form -> 43 dB) | L'nT,w 43 dB (exact 42,96; E.3 prints 42,8) | L'nT,w 42.96 dB | -0.001 dB | - | ![Pass][cv-pass] Pass | | EN 12354-3:2000 Annex F | Facade airborne prediction (R'tr,s,w / D2m,nT,w single numbers) | R'tr,s,w 31 (Ctr -3); D2m,nT,w 33 dB | R'tr,s,w 31 (Ctr -3); D2m,nT,w 33 dB | 0 | - | ![Pass][cv-pass] Pass | | EN 12354-4:2000 Annex G / Formula (2) | Radiated LW of a wall+door segment (side 1, low bands) | LW 63/125 Hz [59.8, 61.2] dB (+/-0.1) | LW [59.8, 61.2] dB | 0.038 dB | - | ![Pass][cv-pass] Pass | | EN 12354-4:2000 Annex E / Table G.9 | Exterior level of all four Table G.9 reception cells | Lp 36,6 / 28,5 / 44,6 / 37,3 dB (+/-0,05) | Lp 36.6 / 28.5 / 44.6 / 37.3 dB | 0.046 dB | - | ![Pass][cv-pass] Pass | | ISO 12999-1:2020 Table 2 | Airborne band uncertainty, situation A @ 1 kHz | 1.8 dB (+/-0 dB) | 1.8 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 12999-1:2020 Annex B, Table B.2 | One-decimal single numbers Rw / Rw+C50-5000 / Rw+Ctr,50-5000 | 57.4 / 56.4 / 51.1 dB | 57.4 / 56.4 / 51.1 dB | +0.00 dB | - | ![Pass][cv-pass] Pass | | ISO 12999-1:2020 Annex B, Formulae (B.2)/(B.6) | Single-number uncertainties (uncorrelated 0,6/0,8; correlated u(Rw) 1,9) | u_uncorr 0.6 / 0.8 dB; u_corr(Rw) 1.9 dB | 0.60 / 0.79 dB; 1.90 dB | -0.00 dB | - | ![Pass][cv-pass] Pass | | ISO 12999-1:2020 Clause 8 / Table 8 | Expanded uncertainty U = 1.96 u (95 % two-sided, Rw sit. A) | 2.352 dB (+/-0 dB) | 2.352 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 12999-2:2020 Table 4 / Formula (1) | Absorption coefficient +/-U (k=2), reproducibility, 20 x 1/3-oct bands | U(k=2) = [0.33, 0.26, 0.22, 0.17, 0.13, 0.11, 0.09, 0.08, 0.08, 0.08, 0.08, 0.08, 0.08, 0.09, 0.09, 0.09, 0.1, 0.11, 0.13, 0.16] | U(k=2) = [0.33, 0.26, 0.22, 0.17, 0.13, 0.11, 0.09, 0.08, 0.08, 0.08, 0.08, 0.08, 0.08, 0.09, 0.09, 0.09, 0.1, 0.11, 0.13, 0.16] | exact | - | ![Pass][cv-pass] Pass | | ISO 12999-2:2020 Table 5 / Formula (4) | Practical coefficient +/-U (k=2), reproducibility, 5 octave bands | U(k=2) = [0.09, 0.08, 0.08, 0.08, 0.1] | U(k=2) = [0.09, 0.08, 0.08, 0.08, 0.1] | exact | - | ![Pass][cv-pass] Pass | | ISO 12999-2:2020 Clause 7, Examples 1/2 | Single-number U (k=2): alpha_w and DLalpha,NRD | alpha_w +/-0.07, DLalpha +/-1.6 dB | alpha_w +/-0.07, DLalpha +/-1.6 dB | exact | - | ![Pass][cv-pass] Pass |

Outdoor propagation & occupational exposure: 100% (10/10)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ISO 9613-1:1993 Table 1 | Air attenuation @ 10 degC, 70 %, 1 kHz | 3.66 dB/km (+/-0.01 dB/km) | 3.658 dB/km | -0.002 dB/km | 20 % | ![Pass][cv-pass] Pass | | ISO 9613-1:1993 Table 1 | Air attenuation @ 0 degC, 20 %, 2 kHz | 34.6 dB/km (+/-0.1 dB/km) | 34.64 dB/km | 0.04 dB/km | 40 % | ![Pass][cv-pass] Pass | | ISO 9613-2:1996 Table 2 | Atmospheric attenuation grid, 6 conditions x 8 octave bands, dB/km | all 48 cells within half a printed digit | worst residual 0.939 x tolerance | 0.939 x | - | ![Pass][cv-pass] Pass | | ISO 9613-2:1996 Eq. (7) | Geometrical divergence Adiv = 20 lg(d/d0) + 11 at 100 m | 51 dB (+/-0 dB) | 51 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 9613-2:1996 Table 3 | Ground b'(0) porous limit -> Agr(250 Hz) = 2(-1.5 + 10.1) | 17.2 dB (+/-0 dB) | 17.2 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 9613-2:1996 clause 7.4 | Single-edge diffraction saturates at the 20 dB cap | 20 dB (+/-0 dB) | 20 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 9613-2:1996 clause 7.4 | Double-edge diffraction saturates at the 25 dB cap | 25 dB (+/-0 dB) | 25 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 9612:2009 Annex D | Task-based LEX,8h + U (welder day, case a) | LEX,8h 84.3; U 2.7 dB | LEX,8h 84.3; U 2.7 dB | -0.01; +0.02 dB | - | ![Pass][cv-pass] Pass | | ISO 9612:2009 Annex E | Job-based LEX,8h + U (production line, 18 workers) | LEX,8h 88.1; U 3.8 dB | LEX,8h 88.2; U 3.8 dB | +0.06; -0.03 dB | - | ![Pass][cv-pass] Pass | | ISO 9612:2009 Annex F | Full-day LEX,8h + U (forklift drivers) | LEX,8h 90.1; U 3.4 dB | LEX,8h 90.1; U 3.4 dB | +0.02; +0.03 dB | - | ![Pass][cv-pass] Pass |

Materials: absorption, airflow & impedance: 100% (6/6)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ISO 11654:1997 Annex A.1 | Weighted absorption alpha_w (no indicator) | 0.60 (class C, no indic.) | 0.60 (class C, '') | 0 | - | ![Pass][cv-pass] Pass | | ISO 11654:1997 Annex A.2 | Weighted absorption alpha_w with M indicator | 0.60(M) | 0.60(M) | 0 | - | ![Pass][cv-pass] Pass | | ISO 9053-2:2020 Annex A.3 | Thermal boundary-layer thickness b | 0.00183 m (+/-0.00001 m) | 0.00183 m | 0 m | 97 % | ![Pass][cv-pass] Pass | | ISO 9053-2:2020 Annex A.3 | Effective ratio of specific heats kappa' | 1.37 (+/-0.001) | 1.37 | 0 | 52 % | ![Pass][cv-pass] Pass | | ISO 10534-1:1996 Eqs (9)/(13)/(14) | Absorption from standing-wave ratio s=3 | alpha 0.75 (+/-0), \|r\| 0.5 | alpha 0.75, \|r\| 0.5000 | 0 | - | ![Pass][cv-pass] Pass | | ISO 10534-2 Eq. (17) / Annex D | Two-microphone round trip recovers a known reflection factor | abs(r - (0.3-0.4j)) = 0 (identity, +/-1e-9) | 0 | 0 | 0 % | ![Pass][cv-pass] Pass |

Scattering & diffusion (ISO 17497): 100% (14/14)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ISO 17497-1:2004 Eq (2) | Reference speed of sound at 20 C | 343.2 m/s (+/-0 m/s) | 343.2 m/s | 0 m/s | 0 % | ![Pass][cv-pass] Pass | | ISO 17497-1:2004 Eqs (1)/(4)/(5) | Scattering coefficient (synthetic chain) | 0.0931 (+/-0) | 0.0931 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 17497-1:2004 Annex A.5 | Expanded uncertainty of scattering coefficient | 0.02971 (+/-0) | 0.02971 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 17497-2:2012 Formula (5) | Directional diffusion coefficient (QRD, model arc) | 0.1099 (+/-0) | 0.1099 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 17497-2:2012 Formula (5) | Directional diffusion coefficient (flat reference) | 0.0049 (+/-0) | 0.0049 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 17497-2:2012 Formula (7) | Normalised diffusion coefficient (QRD, model arc) | 0.1055 (+/-0) | 0.1055 | 0 | 0 % | ![Pass][cv-pass] Pass | | Cox & D'Antonio 3e App. B (2D BEM) | Normalised diffusion d_n, N=7 QRD x 6 periods, 200 Hz band (low-band anchor) | 0 (+/-0.015) | 0 | 0 | 3 % | ![Pass][cv-pass] Pass | | Cox & D'Antonio 3e App. B (2D BEM) | Normalised diffusion d_n, N=7 QRD x 6 periods, 250 Hz band (low-band anchor) | 0.01 (+/-0.015) | 0.001 | -0.009 | 60 % | ![Pass][cv-pass] Pass | | Cox & D'Antonio 3e App. B (2D BEM) | Normalised diffusion d_n, N=7 QRD x 6 periods, 315 Hz band (low-band anchor) | 0.01 (+/-0.015) | 0.002 | -0.008 | 53 % | ![Pass][cv-pass] Pass | | Cox & D'Antonio 3e App. B (2D BEM) | Normalised diffusion d_n, N=7 QRD x 6 periods, 400 Hz band (low-band anchor) | 0.01 (+/-0.015) | 0.008 | -0.002 | 13 % | ![Pass][cv-pass] Pass | | ISO 17497-2:2012 Formula (8) | Zenith area factor (radians convention) | 1.57105 (+/-0) | 1.57105 | 0 | 0 % | ![Pass][cv-pass] Pass | | Cox & D'Antonio Eq (10.3) | QRD deepest well depth (N=7, f0=500 Hz) | 0.196 m (+/-0 m) | 0.196 m | 0 m | 0 % | ![Pass][cv-pass] Pass | | Cox & D'Antonio Eq (5.8) + ISO 17497-2 Formula (7) | Flat-panel predicted normalised diffusion (self-reference zero) | 0 (+/-0) | 0 | 0 | 0 % | ![Pass][cv-pass] Pass | | Cox & D'Antonio Eq (5.8) + ISO 17497-2 Formula (7) | QRD predicted normalised diffusion at 2 kHz (above flat panel) | 0.208 (+/-0) | 0.208 | 0 | 0 % | ![Pass][cv-pass] Pass |

In-situ road absorption (ISO 13472): 100% (3/3)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ISO 13472-1:2002 Clause 4.2 | Geometrical-spreading factor Kr | 0.6667 (+/-0) | 0.6667 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 13472-1:2002 Annex A | Maximum-sampled-area radius | 1.3425 m (+/-0 m) | 1.3425 m | 0 m | 0 % | ![Pass][cv-pass] Pass | | ISO 13472-2:2010 Clause 5.4.1 | Spot-tube upper usable frequency f_u | 1989.4 Hz (+/-0.1 Hz) | 1989.4 Hz | 0 Hz | 0 % | ![Pass][cv-pass] Pass |

Precision sound power (ISO 3745 / 9614-3): 100% (4/4)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ISO 3745:2012 Clause 10.5 EXAMPLE | Expanded uncertainty U (k=2) | 4.123 dB (+/-0.001 dB) | 4.123 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 3745:2012 Eq (11) | K1 background floor (6 dB edge band) | 1.2563 dB (+/-0.0001 dB) | 1.2563 dB | 0 dB | 4 % | ![Pass][cv-pass] Pass | | ISO 3745:2012 Eq (16) | Meteorological C1 at 23 C reference | -0.1282 dB (+/-0.0001 dB) | -0.1282 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 9614-3:2002 Eqs (5)/(8)/(9) | Uniform-intensity LW recovery | 80 dB (+/-0 dB) | 80 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass |

Outdoor propagation quality assurance (ISO/TR 17534-3): 100% (34/34)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ISO/TR 17534-3:2015 T01 | Receiver band levels over ground G = 0, dB | 0 dB (+/-0.05 dB) | 0.008 dB | 0.008 dB | 16 % | ![Pass][cv-pass] Pass | | ISO/TR 17534-3:2015 T01 | Receiver total level over ground G = 0, dB | 47.46 dB (+/-0.05 dB) | 47.457 dB | -0.003 dB | 6 % | ![Pass][cv-pass] Pass | | ISO/TR 17534-3:2015 T01 | Receiver A-weighted level over ground G = 0, dB | 44.29 dB (+/-0.05 dB) | 44.293 dB | 0.003 dB | 6 % | ![Pass][cv-pass] Pass | | ISO/TR 17534-3:2015 T02 | Receiver band levels over ground G = 0.5, dB | 0 dB (+/-0.05 dB) | 0.01 dB | 0.01 dB | 20 % | ![Pass][cv-pass] Pass | | ISO/TR 17534-3:2015 T02 | Receiver total level over ground G = 0.5, dB | 44.61 dB (+/-0.05 dB) | 44.608 dB | -0.002 dB | 4 % | ![Pass][cv-pass] Pass | | ISO/TR 17534-3:2015 T02 | Receiver A-weighted level over ground G = 0.5, dB | 41.53 dB (+/-0.05 dB) | 41.526 dB | -0.004 dB | 8 % | ![Pass][cv-pass] Pass | | ISO/TR 17534-3:2015 T03 | Receiver band levels over ground G = 1, dB | 0 dB (+/-0.05 dB) | 0.008 dB | 0.008 dB | 16 % | ![Pass][cv-pass] Pass | | ISO/TR 17534-3:2015 T03 | Receiver total level over ground G = 1, dB | 42.8 dB (+/-0.05 dB) | 42.8 dB | 0 dB | 1 % | ![Pass][cv-pass] Pass | | ISO/TR 17534-3:2015 T03 | Receiver A-weighted level over ground G = 1, dB | 39.14 dB (+/-0.05 dB) | 39.139 dB | -0.001 dB | 2 % | ![Pass][cv-pass] Pass | | ISO/TR 17534-3:2015 Table 3 | Ground-projected path length dp, m | 194.16 m (+/-0.005 m) | 194.165 m | 0.005 m | 100 % | ![Pass][cv-pass] Pass | | ISO/TR 17534-3:2015 Table 3 | Straight-line path length d3, m | 194.19 m (+/-0.005 m) | 194.188 m | -0.002 m | 40 % | ![Pass][cv-pass] Pass | | ISO/TR 17534-3:2015 Table 3 | Geometrical divergence Adiv, dB | 56.76 dB (+/-0.05 dB) | 56.764 dB | 0.004 dB | 8 % | ![Pass][cv-pass] Pass | | ISO/TR 17534-3:2015 Table 3 | Middle-region overlap factor q (ISO 9613-2 Table 3, note 2) | 0.23 (+/-0.005) | 0.2275 | -0.0025 | 50 % | ![Pass][cv-pass] Pass | | ISO/TR 17534-3:2015 T04 | Receiver band levels, flat ground of three kinds, general method, dB | 0 dB (+/-0.05 dB) | 0.0124 dB | 0.0124 dB | 25 % | ![Pass][cv-pass] Pass | | ISO/TR 17534-3:2015 T04 | Receiver total level, flat ground of three kinds, general method, dB | 45.25 dB (+/-0.05 dB) | 45.248 dB | -0.002 dB | 4 % | ![Pass][cv-pass] Pass | | ISO/TR 17534-3:2015 T04 | Receiver A-weighted level, flat ground of three kinds, general method, dB | 42.23 dB (+/-0.05 dB) | 42.227 dB | -0.003 dB | 6 % | ![Pass][cv-pass] Pass | | ISO/TR 17534-3:2015 T06 | Receiver band levels, ground rising under the receiver, general method, dB | 0 dB (+/-0.05 dB) | 0.0111 dB | 0.0111 dB | 22 % | ![Pass][cv-pass] Pass | | ISO/TR 17534-3:2015 T06 | Receiver total level, ground rising under the receiver, general method, dB | 43.85 dB (+/-0.05 dB) | 43.85 dB | 0 dB | 1 % | ![Pass][cv-pass] Pass | | ISO/TR 17534-3:2015 T06 | Receiver A-weighted level, ground rising under the receiver, general method, dB | 40.59 dB (+/-0.05 dB) | 40.589 dB | -0.001 dB | 2 % | ![Pass][cv-pass] Pass | | ISO/TR 17534-3:2015 T05 | Receiver band levels, flat ground of three kinds, alternative method, dB | 0 dB (+/-0.05 dB) | 0.0075 dB | 0.0075 dB | 15 % | ![Pass][cv-pass] Pass | | ISO/TR 17534-3:2015 T05 | Receiver total level, flat ground of three kinds, alternative method, dB | 42.46 dB (+/-0.05 dB) | 42.461 dB | 0.001 dB | 2 % | ![Pass][cv-pass] Pass | | ISO/TR 17534-3:2015 T05 | Receiver A-weighted level, flat ground of three kinds, alternative method, dB | 39.3 dB (+/-0.05 dB) | 39.298 dB | -0.002 dB | 4 % | ![Pass][cv-pass] Pass | | ISO/TR 17534-3:2015 T07 | Receiver band levels, ground rising under the receiver, alternative method, dB | 0 dB (+/-0.05 dB) | 0.0088 dB | 0.0088 dB | 18 % | ![Pass][cv-pass] Pass | | ISO/TR 17534-3:2015 T07 | Receiver total level, ground rising under the receiver, alternative method, dB | 42.91 dB (+/-0.05 dB) | 42.914 dB | 0.004 dB | 8 % | ![Pass][cv-pass] Pass | | ISO/TR 17534-3:2015 T07 | Receiver A-weighted level, ground rising under the receiver, alternative method, dB | 39.75 dB (+/-0.05 dB) | 39.749 dB | -0.001 dB | 2 % | ![Pass][cv-pass] Pass | | ISO/TR 17534-3:2015 Table 8 (T04) | Region ground factor Gs (source region) over three areas | 0.2 (+/-0.005) | 0.2 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO/TR 17534-3:2015 Table 8 (T04) | Region ground factor Gm (middle region) over three areas | 0.43 (+/-0.005) | 0.4261 | -0.0039 | 78 % | ![Pass][cv-pass] Pass | | ISO/TR 17534-3:2015 Table 8 (T04) | Region ground factor Gr (receiver region) over three areas | 0.67 (+/-0.005) | 0.6703 | 0.0003 | 6 % | ![Pass][cv-pass] Pass | | ISO/TR 17534-3:2015 Table 14 (T06) | Region ground factor Gs (source region) over three areas | 0.9 (+/-0.005) | 0.9 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO/TR 17534-3:2015 Table 14 (T06) | Region ground factor Gm (middle region) over three areas | 0.6 (+/-0.005) | 0.5985 | -0.0015 | 30 % | ![Pass][cv-pass] Pass | | ISO/TR 17534-3:2015 Table 14 (T06) | Region ground factor Gr (receiver region) over three areas | 0.37 (+/-0.005) | 0.3723 | 0.0023 | 46 % | ![Pass][cv-pass] Pass | | ISO/TR 17534-3:2015 Table 14 (T06) | Straight-line path length d3, m | 194.6 m (+/-0.005 m) | 194.6 m | 0 m | 8 % | ![Pass][cv-pass] Pass | | ISO/TR 17534-3:2015 Table 17 (T05) | Mean path height hm over flat ground, m | 2.5 m (+/-0.005 m) | 2.4997 m | -0.0003 m | 6 % | ![Pass][cv-pass] Pass | | ISO/TR 17534-3:2015 Table 17 (T07) | Mean path height hm over a slope, m | 4.99 m (+/-0.005 m) | 4.9888 m | -0.0012 m | 24 % | ![Pass][cv-pass] Pass |

Outdoor sound software quality assurance (ISO 17534-1): 100% (8/8)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ISO 17534-1:2015 Table C.1 | Ranking position R(q0,1) of the 0,1-quantile, N = 20 to 50 | 31/31 rows of Table C.1 | 31/31 rows of Table C.1 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 17534-1:2015 Table C.1 | Ranking position R(q0,9) of the 0,9-quantile, N = 20 to 50 | 31/31 rows of Table C.1 | 31/31 rows of Table C.1 | exact | 0 % | ![Pass][cv-pass] Pass | | VDI 3723 Blatt 1:1993-05 Tables 5 and 6 | Ranking positions of L_x,90 and L_x,10, the source of Table C.1, N = 20 to 50 | 31/31 rows of Tables 5 and 6 | 31/31 rows of Tables 5 and 6 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 17534-1:2015 Formulas (C.1) and (C.2) | Ranking positions above 50 values, N = 51 to 1000 | 950/950 sample sizes | 950/950 sample sizes | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 17534-1:2015 C.4, EXAMPLE | Ranking positions of 25 level differences | R(q0,1) = 2; R(q0,9) = 24 | R(q0,1) = 2; R(q0,9) = 24 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 17534-1:2015 C.4, EXAMPLE | Quantiles q0,1 and q0,9 of 25 level differences, dB | q0,1 = -1 dB; q0,9 = 3 dB | q0,1 = -1 dB; q0,9 = 3 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 17534-1:2015 Table B.2 | Result inside tolerances, eight octave bands and the total of test case T XX | 9/9 rows answered "yes" | 9/9 rows answered "yes" | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 17534-1:2015 Table A.5, note a; Table B.2 | Width of each certified interval, twice the 0,05 dB tolerance | 9/9 rows of Table B.2 | 9/9 rows of Table B.2 | exact | 0 % | ![Pass][cv-pass] Pass |

Human vibration (ISO 8041 / 2631 / 5349): 100% (30/30)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ISO 8041-1:2017 Table B.8 | Wk design-goal factor at 6,31 Hz | 1.054 (+/-0.1%) | 1.0544 | 0.0004 | 38 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table B.9 | Wm design-goal factor at 1,585 Hz | 0.9342 (+/-0.1%) | 0.9342 | 0 | 4 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 1 | Wh factor at the 500 rad/s reference | 0.202 (+/-0.15%) | 0.202 | 0 | 6 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table B.1 | Wb design-goal factor at 6,31 Hz | 1.054 (+/-0.1%) | 1.0545 | 0.0005 | 47 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table B.1 | Wb design-goal factors at 1 / 100 Hz | max rel dev ≤ 0,1 % | 0.000267 | 0.000267 | 27 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 1 | Wc factor at the 100 rad/s reference | 0.5145 (+/-0.1%) | 0.5145 | 0 | 9 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 1 + Table B.3 | Wd factors at the 100 rad/s reference and 1 Hz | max rel dev ≤ 0,1 % | 0.000162 | 0.000162 | 16 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table B.4 | We design-goal factor at 8 Hz | 0.1263 (+/-0.1%) | 0.1263 | 0 | 38 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table B.5 | Wf design-goal factors at 0,1585 / 0,1 Hz | max rel dev ≤ 0,1 % | 0.000098 | 0.000098 | 10 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table B.7 | Wj design-goal factors at 6,31 / 8 Hz | max rel dev ≤ 0,1 % | 0.00001 | 0.00001 | 1 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 5 + Annex B | All nine weightings inside the tolerance envelope (318 printed bands) | 0 bands outside the Table 5 tolerances | 0 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 5349-2:2001 Example E.2.1 | Single-tool daily exposure A(8) | 4.1 m/s² (+/-0.05 m/s²) | 4.14 m/s² | 0.037 m/s² | 74 % | ![Pass][cv-pass] Pass | | ISO 5349-2:2001 Example E.3 | Forestry three-task A(8) | 3.6 m/s² (+/-0.05 m/s²) | 3.61 m/s² | 0.01 m/s² | 20 % | ![Pass][cv-pass] Pass | | ISO 5349-1:2001 Eq. (C.1) | VWF 10 % lifetime Dy at A(8)=7 | 4 yr (+/-0.1 yr) | 4.04 yr | 0.042 yr | 42 % | ![Pass][cv-pass] Pass | | Directive 2002/44/EC Art. 3 | HAV/WBV action & limit values | HAV 2.5/5.0, WBV 0.5/1.15 m/s^2 | HAV 2.5/5.0, WBV 0.5/1.15 m/s^2 | 0 | - | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 5.6.6 + Annex B | All nine band-limiting responses inside the Table 5 envelope (318 bands) | 0 bands outside the Table 5 tolerances | 0 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Annex B | Wk band-limiting factor at 0,631 Hz | 0.9279 (+/-0.1%) | 0.9279 | 0 | 4 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Annex B | Wf band-limiting factor at 0,3981 Hz | 0.9279 (+/-0.1%) | 0.9279 | 0 | 4 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Annex B | Wh band-limiting factor at 10 Hz | 0.9291 (+/-0.1%) | 0.9291 | 0 | 2 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Annex B | Wm band-limiting factor at 1,259 Hz | 0.9291 (+/-0.1%) | 0.9291 | 0 | 2 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table B.5 | Wf design-goal factor at 0,3981 Hz, the cell Table 2 row 2 turns on | 0.3884 (+/-0.1%) | 0.3884 | 0 | 7 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 10 | Running r.m.s. decay to 10 %, linear averaging, tau = 0.125 s | 0.124 s (+/-0.005 s) | 0.122 s | -0.002 s | 40 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 10 | Running r.m.s. decay to 10 %, linear averaging, tau = 1 s | 0.99 s (+/-0.05 s) | 0.983 s | -0.007 s | 14 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 10 | Running r.m.s. decay to 10 %, linear averaging, tau = 8 s | 7.92 s (+/-0.2 s) | 7.915 s | -0.005 s | 2 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 11 | Running r.m.s. decay to 10 %, exponential averaging, tau = 0.125 s | 0.58 s (+/-0.03 s) | 0.576 s | -0.004 s | 13 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 11 | Running r.m.s. decay to 10 %, exponential averaging, tau = 1 s | 4.61 s (+/-0.25 s) | 4.605 s | -0.005 s | 2 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 11 | Running r.m.s. decay to 10 %, exponential averaging, tau = 8 s | 36.8 s (+/-2 s) | 36.841 s | 0.041 s | 2 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 11 | Equivalent decay rate, exponential averaging, tau = 0.125 s | 31 to 40 dB/s | 34.73 dB/s | -0.766 dB/s | 17 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 11 | Equivalent decay rate, exponential averaging, tau = 1 s | 3.8 to 4.9 dB/s | 4.34 dB/s | -0.007 dB/s | 1 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 11 | Equivalent decay rate, exponential averaging, tau = 8 s | 0.48 to 0.62 dB/s | 0.54 dB/s | -0.007 dB/s | 10 % | ![Pass][cv-pass] Pass |

Human-vibration meter verification (ISO 8041-1): 100% (44/44)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ISO 8041-1:2017 Table 4 | Wk transition frequency ft1, Hz | 0.2512 Hz (+/-0.02%) | 0.25119 Hz | -0.00001 Hz | 20 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 4 | Wk transition frequency ft2, Hz | 0.631 Hz (+/-0.02%) | 0.63096 Hz | -0.00004 Hz | 32 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 4 | Wk transition frequency ft3, Hz | 63.1 Hz (+/-0.02%) | 63.09573 Hz | -0.00427 Hz | 34 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 4 | Wk transition frequency ft4, Hz | 158.5 Hz (+/-0.02%) | 158.48932 Hz | -0.01068 Hz | 34 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 4 | Wf transition frequency ft1, Hz | 0.05012 Hz (+/-0.02%) | 0.05012 Hz | 0 Hz | 13 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 4 | Wf transition frequency ft2, Hz | 0.1259 Hz (+/-0.02%) | 0.12589 Hz | -0.00001 Hz | 40 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 4 | Wf transition frequency ft3, Hz | 0.3981 Hz (+/-0.02%) | 0.39811 Hz | 0.00001 Hz | 13 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 4 | Wf transition frequency ft4, Hz | 1 Hz (+/-0.02%) | 1 Hz | 0 Hz | 0 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 4 | Wh transition frequency ft1, Hz | 3.981 Hz (+/-0.02%) | 3.98107 Hz | 0.00007 Hz | 9 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 4 | Wh transition frequency ft2, Hz | 10 Hz (+/-0.02%) | 10 Hz | 0 Hz | 0 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 4 | Wh transition frequency ft3, Hz | 794.3 Hz (+/-0.02%) | 794.32823 Hz | 0.02823 Hz | 18 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 4 | Wh transition frequency ft4, Hz | 1995 Hz (+/-0.02%) | 1995.26231 Hz | 0.26231 Hz | 66 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 1 | Wb reference frequency, Hz | 15.915 Hz (+/-0.01%) | 15.9155 Hz | 0.0005 Hz | 31 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 1 | Wb weighted indication at the reference, m/s2 | 0.8126 m/s² (+/-0.1%) | 0.81256 m/s² | -0.00004 m/s² | 5 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 1 | Wd reference frequency, Hz | 15.915 Hz (+/-0.01%) | 15.9155 Hz | 0.0005 Hz | 31 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 1 | Wd weighted indication at the reference, m/s2 | 0.1261 m/s² (+/-0.1%) | 0.12608 m/s² | -0.00002 m/s² | 16 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 1 | Wh reference frequency, Hz | 79.58 Hz (+/-0.01%) | 79.5775 Hz | -0.0025 Hz | 31 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 1 | Wh weighted indication at the reference, m/s2 | 2.02 m/s² (+/-0.1%) | 2.02019 m/s² | 0.00019 m/s² | 9 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 1 | Wk reference frequency, Hz | 15.915 Hz (+/-0.01%) | 15.9155 Hz | 0.0005 Hz | 31 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 1 | Wk weighted indication at the reference, m/s2 | 0.7718 m/s² (+/-0.1%) | 0.77182 m/s² | 0.00002 m/s² | 3 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 1 | Wf reference frequency, Hz | 0.3979 Hz (+/-0.01%) | 0.3979 Hz | 0 Hz | 32 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 1 | Wf weighted indication at the reference, m/s2 | 0.03888 m/s² (+/-0.1%) | 0.03888 m/s² | 0 m/s² | 12 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 5 | Upper magnitude tolerance in the central region, % | 12 % (+/-0.0005 %) | 12 % | 0 % | 0 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 5 | Lower magnitude tolerance in the central region, % | -11 % (+/-0.0005 %) | -11 % | 0 % | 0 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 5 | Upper magnitude tolerance in the skirts, % | 26 % (+/-0.0005 %) | 26 % | 0 % | 0 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 5 | Lower magnitude tolerance in the skirts, % | -21 % (+/-0.0005 %) | -21 % | 0 % | 0 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 5 | Lower magnitude tolerance in the tails, % | -100 % (+/-0.0005 %) | -100 % | 0 % | 0 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 5 | Characteristic phase deviation in the central region, degrees | 6 deg (+/-0.0005 deg) | 6 deg | 0 deg | 0 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 2 | Indication tolerance at the reference frequency, % | 4 % (+/-0.0005 %) | 4 % | 0 % | 0 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 2 | Indication tolerance for low-frequency whole-body vibration, % | 5 % (+/-0.0005 %) | 5 % | 0 % | 0 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 13.1 and 14.1 | Decision rule at the upper tolerance limit, 2 verdicts | 11,5 % conforms bare, and not with U = 1 % against +12 % | 2/2 verdicts | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 13.1 and 14.1 | Decision rule at the lower tolerance limit, 2 verdicts | -10,5 % conforms bare, and not with U = 1 % against -11 % | 2/2 verdicts | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 13.1 and 14.1 | Coverage factor of the expanded uncertainty | 2 (+/-0.0005) | 2 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 12.11 and 12.13 | Maximum permitted expanded uncertainties of measurement, % | 12.11.2 = 4.5 %; 12.11.3 = 3 %; 12.11.4 = 5 %; 12.13 = 3 % | 12.11.2 = 4.5 %; 12.11.3 = 3 %; 12.11.4 = 5 %; 12.13 = 3 % | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 1 | Nominal frequency range, 9 weightings | 18 printed range bounds, 9 weightings | 18/18 printed range bounds | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 1 | Nominal frequency range of the three applications, Hz | Wh lower = 8 Hz; Wh upper = 1000 Hz; Wm lower = 1 Hz; Wf upper = 0.5 Hz | Wh lower = 8 Hz; Wh upper = 1000 Hz; Wm lower = 1 Hz; Wf upper = 0.5 Hz | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Formula (H.4) | Peak-value deviation at 12 degrees of characteristic phase deviation, % | 10 % (+/-0.05 %) | 9.9798 % | -0.0202 % | 40 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Annex B | Wh design-goal phase at 158.5 Hz, degrees | -93.75 deg (+/-0.05 deg) | -93.7544 deg | -0.0044 deg | 9 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Annex B | Wb design-goal phase at 1 Hz, degrees | 42.42 deg (+/-0.05 deg) | 42.4193 deg | -0.0007 deg | 1 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Annex B | Wk design-goal phase at 15.85 Hz, degrees | -61.84 deg (+/-0.05 deg) | -61.8405 deg | -0.0005 deg | 1 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Annex B | Wf design-goal phase at 0.3981 Hz, degrees | -162.1 deg (+/-0.05 deg) | -162.1181 deg | -0.0181 deg | 36 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Annex B | Design-goal phase columns of Tables B.1 to B.9, 318 cells | 318 printed phase cells, 9 weightings | 318/318 printed phase cells | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 5 | Printed phase columns judged by Formula (6), 9 weightings | 9 printed phase columns inside Table 5 | 9/9 weightings | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 H.2.3.4 n) | Characteristic phase deviation of a constant group delay, degrees | 0 deg for any constant delay | 0 deg | 0 deg | 0 % | ![Pass][cv-pass] Pass |

Seat vibration transmission (ISO 10326-1): 100% (7/7)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ISO 10326-1:2016 Formula (2) | SEAT factor of one test | 0.7076 (+/-0.0005) | 0.7076 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 10326-1:2016 Clause 10.2.1 | Mean of three agreeing runs at the platform, m/s2 | 1.0033 m/s² (+/-0.0005 m/s²) | 1.0033 m/s² | 0 m/s² | 0 % | ![Pass][cv-pass] Pass | | ISO 10326-1:2016 Clause 10.2.1 | Agreement three consecutive runs must keep, % | 5 % (+/-0.0005 %) | 5 % | 0 % | 0 % | ![Pass][cv-pass] Pass | | ISO 10326-1:2016 Formula (4) | Corrected magnitude on the seat, m/s2 | 0.7784 m/s² (+/-0.0005 m/s²) | 0.7784 m/s² | 0 m/s² | 0 % | ![Pass][cv-pass] Pass | | ISO 10326-1:2016 Formula (5) | Transmissibility at resonance of the damping test | 2 (+/-0.0005) | 2 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 10326-1:2016 Clause 10.3 | Inert mass the seat carries for the damping test, kg | 75 kg (+/-0.0005 kg) | 75 kg | 0 kg | 0 % | ![Pass][cv-pass] Pass | | ISO 10326-1:2016 Clause 9.5.1 | Reduced test mass for an actively damped suspension, kg | 60 kg (+/-0.0005 kg) | 60 kg | 0 kg | 0 % | ![Pass][cv-pass] Pass |

Saw-tooth signal burst (ISO 8041-1 5.9): 100% (17/17)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ISO 8041-1:2017 Table 7 | Signal-burst response, hand-arm: every printed cell | 12 cells inside the printed tolerance | 12/12 printed cells | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 8 | Signal-burst response, whole-body: every printed cell | 192 cells inside the printed tolerance | 192/192 printed cells | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 9 | Signal-burst response, low-frequency-whole-body: every printed cell | 24 cells inside the printed tolerance | 24/24 printed cells | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 7 | band-limiting, 1 cycle, r.m.s. value, m/s2 | 0.0448 m/s² (+/-0.5%) | 0.04476 m/s² | -0.00004 m/s² | 18 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 7 | band-limiting, continuous, r.m.s. value, m/s2 | 0.565 m/s² (+/-0.5%) | 0.5649 m/s² | -0.0001 m/s² | 4 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 7 | Wh, 16 cycles, r.m.s. value, m/s2 | 0.0309 m/s² (+/-0.5%) | 0.03084 m/s² | -0.00006 m/s² | 39 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 8 | band-limiting, continuous, r.m.s. value, m/s2 | 0.546 m/s² (+/-0.5%) | 0.54547 m/s² | -0.00053 m/s² | 19 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 8 | Wb, 4 cycles, r.m.s. value, m/s2 | 0.0614 m/s² (+/-0.5%) | 0.06139 m/s² | -0.00001 m/s² | 3 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 8 | Wk, 1 cycle, VDV, m/s^1.75 | 0.323 m/s^1.75 (+/-0.5%) | 0.32306 m/s^1.75 | 0.00006 m/s^1.75 | 4 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 8 | Wk, 16 cycles, MTVV exponential, m/s2 | 0.289 m/s² (+/-0.5%) | 0.28888 m/s² | -0.00012 m/s² | 8 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 8 | Wk, continuous, MTVV linear, m/s2 | 0.364 m/s² (+/-0.5%) | 0.36405 m/s² | 0.00005 m/s² | 3 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 9 | band-limiting, continuous, MSDV, m/s^1.5 | 21.51 m/s^1.5 (+/-1%) | 21.40289 m/s^1.5 | -0.10711 m/s^1.5 | 50 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 9 | Wf, 1 cycle, r.m.s. value, m/s2 | 0.0197 m/s² (+/-0.5%) | 0.01969 m/s² | -0.00001 m/s² | 10 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 6 | Saw-tooth frequency of the whole-body burst, Hz | 15.915 Hz (+/-0.01%) | 15.9155 Hz | 0.0005 Hz | 31 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 6 | Saw-tooth frequency of the hand-arm burst, Hz | 79.58 Hz (+/-0.01%) | 79.5775 Hz | -0.0025 Hz | 31 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 Table 6 | Saw-tooth frequency of the low-frequency whole-body burst, Hz | 0.3979 Hz (+/-0.01%) | 0.3979 Hz | 0 Hz | 32 % | ![Pass][cv-pass] Pass | | ISO 8041-1:2017 12.13 | Largest fall time of the whole-body saw-tooth generator, s | 0.002 s (+/-0.000001 s) | 0.002 s | 0 s | 0 % | ![Pass][cv-pass] Pass |

Personal vibration exposure meters (ISO 8041-2): 100% (11/11)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ISO 8041-2:2021 Table 7 / -1:2017 Table 7 | Signal-burst response, hand-arm: every printed cell | 12 cells inside the printed tolerance | 12/12 printed cells | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8041-2:2021 Table 8 / -1:2017 Table 8 | Signal-burst response, whole-body: every printed cell | 192 cells inside the printed tolerance | 192/192 printed cells | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8041-2:2021 Table 9 / -1:2017 Table 9 | Signal-burst response, low-frequency-whole-body: every printed cell | 24 cells inside the printed tolerance | 24/24 printed cells | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8041-2:2021 Table 7 vs -1:2017 Table 7 | Printed cells identical to Part 1, hand-arm | 12 cells, indication and tolerance, as ISO 8041-1 prints them | 12/12 cells | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8041-2:2021 Table 8 vs -1:2017 Table 8 | Printed cells identical to Part 1, whole-body | 192 cells, indication and tolerance, as ISO 8041-1 prints them | 192/192 cells | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8041-2:2021 Table 9 vs -1:2017 Table 9 | Printed cells identical to Part 1, low-frequency-whole-body | 24 cells, indication and tolerance, as ISO 8041-1 prints them | 24/24 cells | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8041-2:2021 Table 6 vs -1:2017 Table 6 | Saw-tooth test signal identical to Part 1, 18 fields | 18/18 fields | 18/18 fields | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8041-2:2021 Table 2 | Tolerances of indication of a PVEM, 2 rows, % | indication = 4 %; low-frequency indication = 5 %; weighting consistency = 3 % | indication = 4 %; low-frequency indication = 5 %; weighting consistency = 3 % | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8041-2:2021 12.11 | Maximum expanded uncertainties of the frequency-response tests, % | 12.11.2 = 4.5 %; 12.11.3 = 3 %; 12.11.4 = 5 % | 12.11.2 = 4.5 %; 12.11.3 = 3 %; 12.11.4 = 5 % | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8041-2:2021 Clauses 12 and 13 | Maximum expanded uncertainties of measurement, 11 figures over 10 clauses, % | 12.7 = 2 %; 12.10.1 = 2 %; 12.10.2 = 3 %; 12.10.2 additional ranges = 4 %; 12.11.2 = 4.5 %; 12.11.3 = 3 %; 12.11.4 = 5 %; 12.13 = 3 %; 12.14 = 2 %; 12.18 = 0.01 %; 13.9 = 5 % | 12.7 = 2 %; 12.10.1 = 2 %; 12.10.2 = 3 %; 12.10.2 additional ranges = 4 %; 12.11.2 = 4.5 %; 12.11.3 = 3 %; 12.11.4 = 5 %; 12.13 = 3 %; 12.14 = 2 %; 12.18 = 0.01 %; 13.9 = 5 % | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8041-2:2021 12.1 and 13.1 | Coverage factor of the expanded uncertainty | 2 (+/-0) | 2 | 0 | 0 % | ![Pass][cv-pass] Pass |

Machine vibration evaluation (ISO 20816): 100% (64/64)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ISO 20816-1:2016 Annex D.2 | Vector change between two steady states, mm/s | 5.2 mm/s (+/-0.05 mm/s) | 5.171 mm/s | -0.029 mm/s | 58 % | ![Pass][cv-pass] Pass | | ISO 20816-1:2016 Annex D.2 | Change a magnitude comparison would report, mm/s | -0.5 mm/s (+/-0.05 mm/s) | -0.5 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-1:2016 Annex C.2 | Zone A limit factor Zbound of Formula (C.1) | 1 (+/-0.005) | 1 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-1:2016 Annex C.2 | Zone B limit factor Zbound of Formula (C.1) | 2.56 (+/-0.005) | 2.56 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-1:2016 Annex C.2 | Zone C limit factor Zbound of Formula (C.1) | 6.4 (+/-0.005) | 6.4 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-1:2016 Table C.1 | Typical zone A/B boundary, low end of the range, mm/s | 0.71 mm/s (+/-0.0005 mm/s) | 0.71 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-1:2016 Table C.1 | Typical zone A/B boundary, high end of the range, mm/s | 4.5 mm/s (+/-0.0005 mm/s) | 4.5 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-1:2016 Table C.1 | Typical zone B/C boundary, low end of the range, mm/s | 1.8 mm/s (+/-0.0005 mm/s) | 1.8 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-1:2016 Table C.1 | Typical zone B/C boundary, high end of the range, mm/s | 9.3 mm/s (+/-0.0005 mm/s) | 9.3 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-1:2016 Table C.1 | Typical zone C/D boundary, low end of the range, mm/s | 4.5 mm/s (+/-0.0005 mm/s) | 4.5 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-1:2016 Table C.1 | Typical zone C/D boundary, high end of the range, mm/s | 14.7 mm/s (+/-0.0005 mm/s) | 14.7 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-1:2016 Table C.1 | Every range end is a rung of the printed ladder | 0 (+/-0.5) | 0 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-1:2016 Figure 9 | Criterion is flat between the corner frequencies, worst deviation, mm/s | 0 mm/s (+/-0.000000001 mm/s) | 0 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-1:2016 Figure 9 | Constant-displacement slope below the lower corner, dB per octave | 6.0206 dB (+/-0.001 dB) | 6.0206 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-1:2016 Figure 9 | Constant-acceleration slope above the upper corner, dB per octave | 6.0206 dB (+/-0.001 dB) | 6.0206 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 10816-3:2009 Table A.1 | Zone boundaries, group 1 on rigid supports, displacement, worst deviation | 0 µm (+/-0.0005 µm) | 0 µm | 0 µm | 0 % | ![Pass][cv-pass] Pass | | ISO 10816-3:2009 Table A.1 | Zone boundaries, group 1 on rigid supports, velocity, worst deviation | 0 mm/s (+/-0.0005 mm/s) | 0 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | ISO 10816-3:2009 Table A.1 | Zone boundaries, group 1 on flexible supports, displacement, worst deviation | 0 µm (+/-0.0005 µm) | 0 µm | 0 µm | 0 % | ![Pass][cv-pass] Pass | | ISO 10816-3:2009 Table A.1 | Zone boundaries, group 1 on flexible supports, velocity, worst deviation | 0 mm/s (+/-0.0005 mm/s) | 0 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | ISO 10816-3:2009 Table A.2 | Zone boundaries, group 2 on rigid supports, displacement, worst deviation | 0 µm (+/-0.0005 µm) | 0 µm | 0 µm | 0 % | ![Pass][cv-pass] Pass | | ISO 10816-3:2009 Table A.2 | Zone boundaries, group 2 on rigid supports, velocity, worst deviation | 0 mm/s (+/-0.0005 mm/s) | 0 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | ISO 10816-3:2009 Table A.2 | Zone boundaries, group 2 on flexible supports, displacement, worst deviation | 0 µm (+/-0.0005 µm) | 0 µm | 0 µm | 0 % | ![Pass][cv-pass] Pass | | ISO 10816-3:2009 Table A.2 | Zone boundaries, group 2 on flexible supports, velocity, worst deviation | 0 mm/s (+/-0.0005 mm/s) | 0 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | ISO 10816-3:2009 5.2.3 | The more restrictive of the two quantities decides the zone | 3 (+/-0.5) | 3 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 10816-3:2009 5.4.1 | ALARM above a baseline, as a fraction of the zone B/C boundary | 0.25 (+/-0.0005) | 0.25 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 10816-3:2009 5.4.1 | ALARM ceiling, as a multiple of the zone B/C boundary | 1.25 (+/-0.0005) | 1.25 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 10816-3:2009 5.4.2 | TRIP ceiling, as a multiple of the zone C/D boundary | 1.25 (+/-0.0005) | 1.25 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 10816-3:2009 5.3 | Threshold of a significant change, as a fraction of the zone B/C boundary | 0.25 (+/-0.0005) | 0.25 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-9:2020 Table 2 | Gear-unit displacement zone boundaries at a rating of 31.5, worst deviation | 0 µm (+/-0.0005 µm) | 0 µm | 0 µm | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-9:2020 Table 2 | Gear-unit displacement zone boundaries at a rating of 50, worst deviation | 0 µm (+/-0.0005 µm) | 0 µm | 0 µm | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-9:2020 Table 2 | Gear-unit displacement zone boundaries at a rating of 80, worst deviation | 0 µm (+/-0.0005 µm) | 0 µm | 0 µm | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-9:2020 Table 2 | Gear-unit displacement zone boundaries at a rating of 125, worst deviation | 0 µm (+/-0.0005 µm) | 0 µm | 0 µm | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-9:2020 Table 2 | Gear-unit displacement zone boundaries at a rating of 200, worst deviation | 0 µm (+/-0.0005 µm) | 0 µm | 0 µm | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-9:2020 Table 3 | Gear-unit velocity zone boundaries at a rating of 3.15, worst deviation | 0 mm/s (+/-0.0005 mm/s) | 0 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-9:2020 Table 3 | Gear-unit velocity zone boundaries at a rating of 5, worst deviation | 0 mm/s (+/-0.0005 mm/s) | 0 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-9:2020 Table 3 | Gear-unit velocity zone boundaries at a rating of 8, worst deviation | 0 mm/s (+/-0.0005 mm/s) | 0 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-9:2020 Table 3 | Gear-unit velocity zone boundaries at a rating of 12.5, worst deviation | 0 mm/s (+/-0.0005 mm/s) | 0 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-9:2020 Table 3 | Gear-unit velocity zone boundaries at a rating of 20, worst deviation | 0 mm/s (+/-0.0005 mm/s) | 0 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-9:2020 Table 4 | Gear-unit acceleration zone boundaries at a rating of 5, worst deviation | 0 m/s² (+/-0.0005 m/s²) | 0 m/s² | 0 m/s² | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-9:2020 Table 4 | Gear-unit acceleration zone boundaries at a rating of 8, worst deviation | 0 m/s² (+/-0.0005 m/s²) | 0 m/s² | 0 m/s² | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-9:2020 Table 4 | Gear-unit acceleration zone boundaries at a rating of 12.5, worst deviation | 0 m/s² (+/-0.0005 m/s²) | 0 m/s² | 0 m/s² | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-9:2020 Table 4 | Gear-unit acceleration zone boundaries at a rating of 20, worst deviation | 0 m/s² (+/-0.0005 m/s²) | 0 m/s² | 0 m/s² | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-9:2020 Table 4 | Gear-unit acceleration zone boundaries at a rating of 31.5, worst deviation | 0 m/s² (+/-0.0005 m/s²) | 0 m/s² | 0 m/s² | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-9:2020 Table 4 | Gear-unit acceleration zone boundaries at a rating of 50, worst deviation | 0 m/s² (+/-0.0005 m/s²) | 0 m/s² | 0 m/s² | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-9:2020 Table 4 | Gear-unit acceleration zone boundaries at a rating of 80, worst deviation | 0 m/s² (+/-0.0005 m/s²) | 0 m/s² | 0 m/s² | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-9:2020 Table 4 | Gear-unit acceleration zone boundaries at a rating of 125, worst deviation | 0 m/s² (+/-0.0005 m/s²) | 0 m/s² | 0 m/s² | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-9:2020 Table 4 | Gear-unit acceleration zone boundaries at a rating of 200, worst deviation | 0 m/s² (+/-0.0005 m/s²) | 0 m/s² | 0 m/s² | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-9:2020 Table 5 | Gear-unit ratings for class I, subclass a, worst deviation | 0 (+/-0.0005) | 0 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-9:2020 Table 5 | Gear-unit ratings for class I, subclass b, low power, worst deviation | 0 (+/-0.0005) | 0 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-9:2020 Table 5 | Gear-unit ratings for class I, subclass b, high power, worst deviation | 0 (+/-0.0005) | 0 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-9:2020 Table 5 | Gear-unit ratings for class II, subclass a, worst deviation | 0 (+/-0.0005) | 0 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-9:2020 Table 5 | Gear-unit ratings for class II, subclass b, low power, worst deviation | 0 (+/-0.0005) | 0 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-9:2020 Table 5 | Gear-unit ratings for class II, subclass b, high power, worst deviation | 0 (+/-0.0005) | 0 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-9:2020 Table 5 | Gear-unit ratings for class III, subclass a, worst deviation | 0 (+/-0.0005) | 0 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-9:2020 Table 5 | Gear-unit ratings for class III, subclass b, low power, worst deviation | 0 (+/-0.0005) | 0 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-9:2020 Table 5 | Gear-unit ratings for class III, subclass b, high power, worst deviation | 0 (+/-0.0005) | 0 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-9:2020 Table 5 | Gear-unit ratings for class IV, subclass a, worst deviation | 0 (+/-0.0005) | 0 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-9:2020 Table 5 | Gear-unit ratings for class IV, subclass b, low power, worst deviation | 0 (+/-0.0005) | 0 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-9:2020 Table 5 | Gear-unit ratings for class IV, subclass b, high power, worst deviation | 0 (+/-0.0005) | 0 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-9:2020 Figure A.1 | Fall of the displacement rating curve a decade above its corner, dB | 10 dB (+/-0.0005 dB) | 10 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-9:2020 Figure A.1 | Displacement rating curve below its corner, worst deviation from DR, µm | 0 µm (+/-0.0005 µm) | 0 µm | 0 µm | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-9:2020 Figure A.2 | Fall of the velocity rating curve a decade outside each corner, dB | 14 dB (+/-0.0005 dB) | 14 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-9:2020 Figure A.2 | Velocity rating curve between its corners, worst deviation from VR, mm/s | 0 mm/s (+/-0.0005 mm/s) | 0 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | ISO 20816-9:2020 Table 4, note | Velocity rungs carried onto acceleration rungs at 280 Hz, worst error, % | 0 % (+/-3 %) | 2.034 % | 2.034 % | 68 % | ![Pass][cv-pass] Pass |

Vibration effects on structures (DIN 4150-3): 100% (27/27)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | DIN 4150-3:1999-02 Table 1 | Short-term guideline vi at the foundation, commercial and industrial buildings, 1 Hz | 20 mm/s (+/-0.005 mm/s) | 20 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | DIN 4150-3:1999-02 Table 1 | Short-term guideline vi at the foundation, commercial and industrial buildings, 10 Hz | 20 mm/s (+/-0.005 mm/s) | 20 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | DIN 4150-3:1999-02 Table 1 | Short-term guideline vi at the foundation, commercial and industrial buildings, 50 Hz | 40 mm/s (+/-0.005 mm/s) | 40 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | DIN 4150-3:1999-02 Table 1 | Short-term guideline vi at the foundation, commercial and industrial buildings, 100 Hz | 50 mm/s (+/-0.005 mm/s) | 50 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | DIN 4150-3:1999-02 Table 1 | Short-term guideline vi at the foundation, dwellings, 1 Hz | 5 mm/s (+/-0.005 mm/s) | 5 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | DIN 4150-3:1999-02 Table 1 | Short-term guideline vi at the foundation, dwellings, 10 Hz | 5 mm/s (+/-0.005 mm/s) | 5 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | DIN 4150-3:1999-02 Table 1 | Short-term guideline vi at the foundation, dwellings, 50 Hz | 15 mm/s (+/-0.005 mm/s) | 15 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | DIN 4150-3:1999-02 Table 1 | Short-term guideline vi at the foundation, dwellings, 100 Hz | 20 mm/s (+/-0.005 mm/s) | 20 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | DIN 4150-3:1999-02 Table 1 | Short-term guideline vi at the foundation, especially sensitive buildings, 1 Hz | 3 mm/s (+/-0.005 mm/s) | 3 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | DIN 4150-3:1999-02 Table 1 | Short-term guideline vi at the foundation, especially sensitive buildings, 10 Hz | 3 mm/s (+/-0.005 mm/s) | 3 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | DIN 4150-3:1999-02 Table 1 | Short-term guideline vi at the foundation, especially sensitive buildings, 50 Hz | 8 mm/s (+/-0.005 mm/s) | 8 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | DIN 4150-3:1999-02 Table 1 | Short-term guideline vi at the foundation, especially sensitive buildings, 100 Hz | 10 mm/s (+/-0.005 mm/s) | 10 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | DIN 4150-3:1999-02 Table 1 | Short-term guideline vi in the topmost floor plane, commercial and industrial buildings | 40 mm/s (+/-0.005 mm/s) | 40 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | DIN 4150-3:1999-02 Table 1 | Short-term guideline vi in the topmost floor plane, dwellings | 15 mm/s (+/-0.005 mm/s) | 15 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | DIN 4150-3:1999-02 Table 1 | Short-term guideline vi in the topmost floor plane, especially sensitive buildings | 8 mm/s (+/-0.005 mm/s) | 8 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | DIN 4150-3:1999-02 Table 3 | Long-term guideline vi in the topmost floor plane, commercial and industrial buildings | 10 mm/s (+/-0.005 mm/s) | 10 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | DIN 4150-3:1999-02 Table 3 | Long-term guideline vi in the topmost floor plane, dwellings | 5 mm/s (+/-0.005 mm/s) | 5 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | DIN 4150-3:1999-02 Table 3 | Long-term guideline vi in the topmost floor plane, especially sensitive buildings | 2.5 mm/s (+/-0.005 mm/s) | 2.5 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | DIN 4150-3:1999-02 Table 2 | Short-term guideline vi on a buried pipeline, welded steel | 100 mm/s (+/-0.005 mm/s) | 100 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | DIN 4150-3:1999-02 Table 2 | Short-term guideline vi on a buried pipeline, concrete and flanged metal | 80 mm/s (+/-0.005 mm/s) | 80 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | DIN 4150-3:1999-02 Table 2 | Short-term guideline vi on a buried pipeline, masonry and plastic | 50 mm/s (+/-0.005 mm/s) | 50 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | DIN 4150-3:1999-02 Clause 6.3 | Long-term reduction of the pipeline guideline values | 0.5 (+/-0.0005) | 0.5 | 0 | 0 % | ![Pass][cv-pass] Pass | | DIN 4150-3:1999-02 Clause 5.1 | Massive engineering structures, factor on the row 1 values | 2 (+/-0.0005) | 2 | 0 | 0 % | ![Pass][cv-pass] Pass | | DIN 4150-3:1999-02 Clause 5.2 | Vertical guideline vz for a ceiling or floor, mm/s | 20 mm/s (+/-0.005 mm/s) | 20 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | DIN 4150-3:1999-02 Bild 1 | Guideline vi inside a band, dwellings, 30 Hz | 10 mm/s (+/-0.005 mm/s) | 10 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | DIN 4150-3:1999-02 Bild 1 | Guideline vi inside a band, commercial and industrial buildings, 75 Hz | 45 mm/s (+/-0.005 mm/s) | 45 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | DIN 4150-3:1999-02 Clause 6.4 | Lowest horizontal natural frequency of a ten-storey building, Hz | 1 Hz (+/-0.0005 Hz) | 1 Hz | 0 Hz | 0 % | ![Pass][cv-pass] Pass |

Building response prediction (ISO 4866): 100% (15/15)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ISO 4866:2010 D.2 | Fundamental frequency of a 23 m building, f = 46/h, Hz | 2 Hz (+/-0.0005 Hz) | 2 Hz | 0 Hz | 0 % | ![Pass][cv-pass] Pass | | ISO 4866:2010 D.2 | Fundamental frequency of a 46 m building, f = 46/h, Hz | 1 Hz (+/-0.0005 Hz) | 1 Hz | 0 Hz | 0 % | ![Pass][cv-pass] Pass | | ISO 4866:2010 D.2 | Fundamental frequency of a 92 m building, f = 46/h, Hz | 0.5 Hz (+/-0.0005 Hz) | 0.5 Hz | 0 Hz | 0 % | ![Pass][cv-pass] Pass | | ISO 4866:2010 D.2 | The same fit as a period, T = 0,022 h, s | 1.1 s (+/-0.0005 s) | 1.1 s | 0 s | 0 % | ![Pass][cv-pass] Pass | | ISO 4866:2010 D.2 | Fundamental frequency of a ten-storey building, f = 10/n, Hz | 1 Hz (+/-0.0005 Hz) | 1 Hz | 0 Hz | 0 % | ![Pass][cv-pass] Pass | | ISO 4866:2010 Formula (D.1) | Fundamental period from the height form at k = 0.014, s | 0.7 s (+/-0.0005 s) | 0.7 s | 0 s | 0 % | ![Pass][cv-pass] Pass | | ISO 4866:2010 Formula (D.1) | Fundamental period from the height form at k = 0.03, s | 1.5 s (+/-0.0005 s) | 1.5 s | 0 s | 0 % | ![Pass][cv-pass] Pass | | ISO 4866:2010 Formula (D.2) | Fundamental period from the height_width form at k = 0.087, s | 1.1673 s (+/-0.0005 s) | 1.1672 s | -0.0001 s | 20 % | ![Pass][cv-pass] Pass | | ISO 4866:2010 Formula (D.2) | Fundamental period from the height_width form at k = 0.109, s | 1.4625 s (+/-0.0005 s) | 1.4624 s | -0.0001 s | 20 % | ![Pass][cv-pass] Pass | | ISO 4866:2010 Formula (D.3) | Fundamental period from the slenderness form at k = 0.06, s | 0.6971 s (+/-0.0005 s) | 0.6971 s | 0 s | 7 % | ![Pass][cv-pass] Pass | | ISO 4866:2010 Formula (D.3) | Fundamental period from the slenderness form at k = 0.08, s | 0.9295 s (+/-0.0005 s) | 0.9295 s | 0 s | 3 % | ![Pass][cv-pass] Pass | | ISO 4866:2010 D.2 | Upper end of the error band an empirical prediction carries, Hz | 3 Hz (+/-0.0005 Hz) | 3 Hz | 0 Hz | 0 % | ![Pass][cv-pass] Pass | | ISO 4866:2010 D.2 | Lower end of the error band an empirical prediction carries, Hz | 1 Hz (+/-0.0005 Hz) | 1 Hz | 0 Hz | 0 % | ![Pass][cv-pass] Pass | | ISO 4866:2010 D.4 | Lowest damping ratio measured on a building, % of critical | 0.5 % (+/-0.0005 %) | 0.5 % | 0 % | 0 % | ![Pass][cv-pass] Pass | | ISO 4866:2010 D.4 | Highest damping ratio measured on a building, % of critical | 2.1 % (+/-0.0005 %) | 2.1 % | 0 % | 0 % | ![Pass][cv-pass] Pass |

Vibration immission measurement (DIN 45669): 100% (35/35)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | DIN 45669-1:2010-09 5.2.3.2 | Band limitation at the lower corner 0,8 f_u, magnitude | 0.70711 (+/-0.00005) | 0.70711 | 0 | 0 % | ![Pass][cv-pass] Pass | | DIN 45669-1:2010-09 5.2.3.2 | Band limitation at the upper corner f_o / 0,8, magnitude | 0.70711 (+/-0.00005) | 0.70711 | 0 | 0 % | ![Pass][cv-pass] Pass | | DIN 45669-1:2010-09 5.2.3.2 | KB weighting at its own corner 5,6 Hz, relative to the band limitation | 0.70711 (+/-0.00005) | 0.70711 | 0 | 0 % | ![Pass][cv-pass] Pass | | DIN 45669-1:2010-09 Table 2 | Lower limit of F(f) inside the band, % | 10 % (+/-0 %) | 10 % | 0 % | 0 % | ![Pass][cv-pass] Pass | | DIN 45669-1:2010-09 Table 2 | Lower limit of F(f) in the skirt, % | 20 % (+/-0 %) | 20 % | 0 % | 0 % | ![Pass][cv-pass] Pass | | DIN 45669-1:2010-09 Table 3 | Upper limit of F(f) outside the band, % | 20 % (+/-0 %) | 20 % | 0 % | 0 % | ![Pass][cv-pass] Pass | | DIN 45669-1:2010-09 Table 9 | KB_F of a 1 mm/s sine at 1 Hz | 0.103 (+/-0.001) | 0.1027 | -0.0003 | 30 % | ![Pass][cv-pass] Pass | | DIN 45669-1:2010-09 Table 9 | KB_Fmax of a 1 mm/s sine at 1 Hz | 0.13 (+/-0.001) | 0.1298 | -0.0002 | 20 % | ![Pass][cv-pass] Pass | | DIN 45669-1:2010-09 Table 9 | KB_F of a 1 mm/s sine at 5.6 Hz | 0.5 (+/-0.001) | 0.4994 | -0.0006 | 60 % | ![Pass][cv-pass] Pass | | DIN 45669-1:2010-09 Table 9 | KB_Fmax of a 1 mm/s sine at 5.6 Hz | 0.528 (+/-0.001) | 0.5274 | -0.0006 | 60 % | ![Pass][cv-pass] Pass | | DIN 45669-1:2010-09 Table 9 | KB_F of a 1 mm/s sine at 31.5 Hz | 0.693 (+/-0.001) | 0.6928 | -0.0002 | 20 % | ![Pass][cv-pass] Pass | | DIN 45669-1:2010-09 Table 9 | KB_Fmax of a 1 mm/s sine at 31.5 Hz | 0.7 (+/-0.001) | 0.6998 | -0.0002 | 20 % | ![Pass][cv-pass] Pass | | DIN 45669-1:2010-09 Table 9 | KB_F of a 1 mm/s sine at 80 Hz | 0.594 (+/-0.001) | 0.5941 | 0.0001 | 10 % | ![Pass][cv-pass] Pass | | DIN 45669-1:2010-09 Table 9 | KB_Fmax of a 1 mm/s sine at 80 Hz | 0.597 (+/-0.001) | 0.5965 | -0.0005 | 50 % | ![Pass][cv-pass] Pass | | DIN 45669-1:2010-09 Table 9 | KB_F of a 1 mm/s sine at 315 Hz | 0.071 (+/-0.001) | 0.0708 | -0.0002 | 20 % | ![Pass][cv-pass] Pass | | DIN 45669-1:2010-09 Table 9 | KB_Fmax of a 1 mm/s sine at 315 Hz | 0.071 (+/-0.001) | 0.0709 | -0.0001 | 10 % | ![Pass][cv-pass] Pass | | DIN 45669-1:2010-09 6.2.3.12 | KB_F under the reference conditions (1 mm/s, 16 Hz) | 0.667 (+/-0.001) | 0.6671 | 0.0001 | 10 % | ![Pass][cv-pass] Pass | | DIN 45669-1:2010-09 6.2.3.12 | KB_Fmax under the reference conditions (1 mm/s, 16 Hz) | 0.68 (+/-0.001) | 0.6803 | 0.0003 | 30 % | ![Pass][cv-pass] Pass | | DIN 45669-1 Ber 1:2012-12 Table 8 | KB_Fmax of an 80 Hz burst train, continuous, % of continuous | 100.4 % (+/-0.7 %) | 100.397 % | -0.003 % | 0 % | ![Pass][cv-pass] Pass | | DIN 45669-1 Ber 1:2012-12 Table 8 | KB_Fmax of an 80 Hz burst train, 800 ms, % of continuous | 100.3 % (+/-0.7 %) | 100.335 % | 0.035 % | 5 % | ![Pass][cv-pass] Pass | | DIN 45669-1 Ber 1:2012-12 Table 8 | KB_Fmax of an 80 Hz burst train, 400 ms, % of continuous | 98.3 % (+/-0.7 %) | 98.337 % | 0.037 % | 5 % | ![Pass][cv-pass] Pass | | DIN 45669-1 Ber 1:2012-12 Table 8 | KB_Fmax of an 80 Hz burst train, 200 ms, % of continuous | 89.7 % (+/-0.7 %) | 89.648 % | -0.052 % | 7 % | ![Pass][cv-pass] Pass | | DIN 45669-1 Ber 1:2012-12 Table 8 | KB_Fmax of an 80 Hz burst train, 100 ms, % of continuous | 74.5 % (+/-0.7 %) | 74.405 % | -0.095 % | 14 % | ![Pass][cv-pass] Pass | | DIN 45669-1 Ber 1:2012-12 Table 8 | KB_Fmax of an 80 Hz burst train, 50 ms, % of continuous | 57.6 % (+/-0.7 %) | 57.59 % | -0.01 % | 1 % | ![Pass][cv-pass] Pass | | DIN 45669-1 Ber 1:2012-12 Table 8 | KB_Fmax of an 80 Hz burst train, 25 ms, % of continuous | 42.7 % (+/-0.7 %) | 42.886 % | 0.186 % | 27 % | ![Pass][cv-pass] Pass | | DIN 45669-1 Ber 1:2012-12 Table 8 | KB_Fmax of an 80 Hz burst train, 12.5 ms, % of continuous | 30.9 % (+/-0.7 %) | 31.427 % | 0.527 % | 75 % | ![Pass][cv-pass] Pass | | DIN 45669-1:2010-09 Annex E, Table E.1 | Assessment weighting H_vB, commercial, at 50 Hz | 0.5 (+/-0.00005) | 0.5 | 0 | 0 % | ![Pass][cv-pass] Pass | | DIN 45669-1:2010-09 Annex E, Table E.1 | Assessment weighting H_vB, commercial, at 100 Hz | 0.4 (+/-0.00005) | 0.4 | 0 | 0 % | ![Pass][cv-pass] Pass | | DIN 45669-1:2010-09 Annex E, Table E.1 | Assessment weighting H_vB, residential, at 50 Hz | 0.33333 (+/-0.00005) | 0.33333 | 0 | 0 % | ![Pass][cv-pass] Pass | | DIN 45669-1:2010-09 Annex E, Table E.1 | Assessment weighting H_vB, residential, at 100 Hz | 0.25 (+/-0.00005) | 0.25 | 0 | 0 % | ![Pass][cv-pass] Pass | | DIN 45669-1:2010-09 Annex E, Table E.1 | Assessment weighting H_vB, sensitive, at 50 Hz | 0.375 (+/-0.00005) | 0.375 | 0 | 0 % | ![Pass][cv-pass] Pass | | DIN 45669-1:2010-09 Annex E, Table E.1 | Assessment weighting H_vB, sensitive, at 100 Hz | 0.3 (+/-0.00005) | 0.3 | 0 | 0 % | ![Pass][cv-pass] Pass | | DIN 45669-1:2010-09 Annex E, Table E.2 | Guideline assessment velocity, commercial, mm/s | 20 mm/s (+/-0.0005 mm/s) | 20 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | DIN 45669-1:2010-09 Annex E, Table E.2 | Guideline assessment velocity, residential, mm/s | 5 mm/s (+/-0.0005 mm/s) | 5 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass | | DIN 45669-1:2010-09 Annex E, Table E.2 | Guideline assessment velocity, sensitive, mm/s | 3 mm/s (+/-0.0005 mm/s) | 3 mm/s | 0 mm/s | 0 % | ![Pass][cv-pass] Pass |

Railway vibration evaluation (DIN 45672): 100% (4/4)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | DIN 45672-2:1995-07 7.3.2 | Block length at 1,25 Hz resolution, s | 0.8 s (+/-0 s) | 0.8 s | 0 s | 0 % | ![Pass][cv-pass] Pass | | DIN 45672-2:1995-07 7.1 | Relative bandwidth of a third octave, % | 23 % (+/-0.5 %) | 23.0768 % | 0.0768 % | 15 % | ![Pass][cv-pass] Pass | | DIN 45672-2:1995-07 Clause 4 | Shortfall of the running mean square after 2 tau, % | 14 % (+/-0.5 %) | 13.53 % | -0.466 % | 93 % | ![Pass][cv-pass] Pass | | DIN 45672-2:1995-07 Clause 4 | Shortfall of the running mean square after 4 tau, % | 2 % (+/-0.5 %) | 1.83 % | -0.168 % | 34 % | ![Pass][cv-pass] Pass |

Vibration and people in buildings (DIN 4150-2): 100% (21/21)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | DIN 4150-2:1999-06 Annex C, Example 2 | Admissible exposure at A_r, h | 1.48 h (+/-0.005 h) | 1.482 h | 0.002 h | 40 % | ![Pass][cv-pass] Pass | | DIN 4150-2:1999-06 Annex C, Example 4 | KB_FTr of two hammers, Formula (4a) | 0.15 (+/-0.005) | 0.154 | 0.004 | 80 % | ![Pass][cv-pass] Pass | | DIN 4150-2:1999-06 Annex C, Example 5 | KB_FTr with hammer b) in the rest hours, Formula (5) | 0.2 (+/-0.005) | 0.195 | -0.005 | 100 % | ![Pass][cv-pass] Pass | | DIN 4150-2:1999-06 Annex C, Example 6 | KB_FTr of hammer a) over 16 h with 4 h in the rest hours | 0.18 (+/-0.005) | 0.179 | -0.001 | 20 % | ![Pass][cv-pass] Pass | | DIN 4150-2:1999-06 Annex C, Example 7 | KB*_Fmax from 4 mm/s at 14 Hz, Formulae (6) and (7) | 2.1 (+/-0.05) | 2.101 | 0.001 | 2 % | ![Pass][cv-pass] Pass | | DIN 4150-2:1999-06 Annex C, Example 8 | KB_FTm of class 1 by Formula (A.1) | 0.82 (+/-0.005) | 0.8198 | -0.0002 | 4 % | ![Pass][cv-pass] Pass | | DIN 4150-2:1999-06 Annex C, Example 8 | KB_FTm of class 2 by Formula (A.1) | 0.22 (+/-0.005) | 0.2209 | 0.0009 | 18 % | ![Pass][cv-pass] Pass | | DIN 4150-2:1999-06 Annex C, Example 8 | s(KB²_FTm) of class 1 by Formula (A.2) | 0.27 (+/-0.005) | 0.2709 | 0.0009 | 18 % | ![Pass][cv-pass] Pass | | DIN 4150-2:1999-06 Annex C, Example 8 | s(KB²_FTm) of class 2 by Formula (A.2) | 0.012 (+/-0.0005) | 0.0124 | 0.0004 | 80 % | ![Pass][cv-pass] Pass | | DIN 4150-2:1999-06 Annex C, Example 8 | KB_FTr of both classes by Formula (A.3) | 0.325 (+/-0.0005) | 0.3251 | 0.0001 | 20 % | ![Pass][cv-pass] Pass | | DIN 4150-2:1999-06 Annex C, Example 8 | KB_FTr one spread up, above the value | 0.059 (+/-0.0005) | 0.0591 | 0.0001 | 20 % | ![Pass][cv-pass] Pass | | DIN 4150-2:1999-06 Annex C, Example 8 | KB_FTr one spread down, below the value | 0.073 (+/-0.0015) | 0.0725 | -0.0005 | 33 % | ![Pass][cv-pass] Pass | | DIN 4150-2:1999-06 Annex C, Example 8 | KB_FTm over the 20 intervals of the record, Formula (3) | 0.325 (+/-0.0005) | 0.3251 | 0.0001 | 20 % | ![Pass][cv-pass] Pass | | DIN 4150-2:1999-06 Annex C, Example 8 | KB_FTm over the record with the passage maxima alone | 0.318 (+/-0.0005) | 0.3175 | -0.0005 | 100 % | ![Pass][cv-pass] Pass | | DIN 4150-2:1999-06 Figure 3 | Stage I A_u interpolated for 2 working days | 0.73 (+/-0.005) | 0.73 | 0 | 0 % | ![Pass][cv-pass] Pass | | DIN 4150-2:1999-06 Figure 3 | Stage I A_u interpolated for 3 working days | 0.67 (+/-0.005) | 0.67 | 0 | 0 % | ![Pass][cv-pass] Pass | | DIN 4150-2:1999-06 Figure 3 | Stage I A_u interpolated for 4 working days | 0.6 (+/-0.005) | 0.6 | 0 | 0 % | ![Pass][cv-pass] Pass | | DIN 4150-2:1999-06 Figure 3 | Stage I A_u interpolated for 5 working days | 0.53 (+/-0.005) | 0.53 | 0 | 0 % | ![Pass][cv-pass] Pass | | DIN 4150-2:1999-06 Figure 3 | Stage I A_u interpolated for 6 working days | 0.47 (+/-0.005) | 0.47 | 0 | 0 % | ![Pass][cv-pass] Pass | | DIN 4150-2:1999-06 Annex D, Figure D.1 | Trains an hour at KB_FTm = 0,2 for A_r = 0.05 | 7 (+/-0) | 7 | 0 | 0 % | ![Pass][cv-pass] Pass | | DIN 4150-2:1999-06 Annex D, Figure D.1 | Trains an hour at KB_FTm = 0,2 for A_r = 0.07 | 14 (+/-0) | 14 | 0 | 0 % | ![Pass][cv-pass] Pass |

Predicting vibration before it is measured (DIN 4150-1): 100% (12/12)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | DIN 4150-1:2001-06 Annex A, Figure A.19 | alpha from D = 0,01 and lambda = 12,5 m, as printed, 1/m | 0.005 1/m (+/-0.0005 1/m) | 0.005 1/m | 0 1/m | 5 % | ![Pass][cv-pass] Pass | | DIN 4150-1:2001-06 Annex A, Figure A.19 | v at 80 m by Formula (2) with n = 0, as drawn, mm/s | 0.32 mm/s (+/-0.01 mm/s) | 0.315 mm/s | -0.005 mm/s | 50 % | ![Pass][cv-pass] Pass | | DIN 4150-1:2001-06 Annex A, Figure A.19 | v at 80 m by Formula (2) with n = 0.5, as drawn, mm/s | 0.13 mm/s (+/-0.01 mm/s) | 0.127 mm/s | -0.003 mm/s | 30 % | ![Pass][cv-pass] Pass | | DIN 4150-1:2001-06 Annex A, Figure A.19 | v at 80 m by Formula (2) with n = 1, as drawn, mm/s | 0.05 mm/s (+/-0.01 mm/s) | 0.051 mm/s | 0.001 mm/s | 10 % | ![Pass][cv-pass] Pass | | DIN 4150-1:2001-06 Figure 2 | Damping factor at 100 m and 10 Hz, as drawn | 0.73 (+/-0.02) | 0.73 | 0 | 2 % | ![Pass][cv-pass] Pass | | DIN 4150-1:2001-06 Figure 2 | Damping factor at 100 m and 20 Hz, as drawn | 0.53 (+/-0.02) | 0.533 | 0.003 | 15 % | ![Pass][cv-pass] Pass | | DIN 4150-1:2001-06 Figure 2 | Damping factor at 100 m and 30 Hz, as drawn | 0.39 (+/-0.02) | 0.39 | 0 | 2 % | ![Pass][cv-pass] Pass | | DIN 4150-1:2001-06 Figure 2 | Damping factor at 100 m and 40 Hz, as drawn | 0.28 (+/-0.02) | 0.285 | 0.005 | 25 % | ![Pass][cv-pass] Pass | | DIN 4150-1:2001-06 Figure 2 | Damping factor at 100 m and 50 Hz, as drawn | 0.21 (+/-0.02) | 0.208 | -0.002 | 10 % | ![Pass][cv-pass] Pass | | DIN 4150-1:2001-06 Annex A, Figure A.18 | v_N for 20 machines by Formula (7) with chi of Figure 3, as drawn, mm/s | 0.78 mm/s (+/-6%) | 0.754 mm/s | -0.026 mm/s | 56 % | ![Pass][cv-pass] Pass | | DIN 4150-1:2001-06 Annex A, Figure A.18 | v_N for 60 machines by Formula (7) with chi of Figure 3, as drawn, mm/s | 1.03 mm/s (+/-6%) | 0.995 mm/s | -0.035 mm/s | 57 % | ![Pass][cv-pass] Pass | | DIN 4150-1:2001-06 Annex A, Figure A.18 | v_N for 100 machines by Formula (7) with chi of Figure 3, as drawn, mm/s | 1.27 mm/s (+/-6%) | 1.258 mm/s | -0.012 mm/s | 16 % | ![Pass][cv-pass] Pass |

Railway vibration predicted from third-octave spectra (E DIN 45672-3:2023-02): 100% (21/21)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | E DIN 45672-3:2023-02 Annex C, Table C.1 | Sum level of the 19 printed bands | 78.1 dB (+/-0.05 dB) | 78.08 dB | -0.022 dB | 44 % | ![Pass][cv-pass] Pass | | E DIN 45672-3:2023-02 Annex C, C.3 | KB_FTm,Zug from 78,1 dB by Formula (9), c_T1 = 1 | 0.4 (+/-0.05) | 0.4018 | 0.0018 | 4 % | ![Pass][cv-pass] Pass | | E DIN 45672-3:2023-02 Annex C, C.3 | KB_Fmax,Zug by Formula (10), 1,5 times it | 0.6 (+/-0.05) | 0.6026 | 0.0026 | 5 % | ![Pass][cv-pass] Pass | | E DIN 45672-3:2023-02 Annex C, C.3 | v_max by Formula (12), 3 times that, mm/s | 1.81 mm/s (+/-0.005 mm/s) | 1.808 mm/s | -0.002 mm/s | 40 % | ![Pass][cv-pass] Pass | | E DIN 45672-3:2023-02 Annex C, C.3 | KB_FTr of the day by Formula (11), 200 trams at 0,7 (the print's 0,11 puts alpha under the root once, not squared) | 0.09 (+/-0.0005) | 0.0904 | 0.0004 | 80 % | ![Pass][cv-pass] Pass | | E DIN 45672-3:2023-02 Annex C, C.3 | KB_FTr of the night by Formula (11), 20 trams at 0,7 (the print's 0,05 puts alpha under the root once, not squared) | 0.04 (+/-0.0005) | 0.0404 | 0.0004 | 80 % | ![Pass][cv-pass] Pass | | E DIN 45672-3:2023-02 Annex C, Table C.1 | L_v at 4 Hz by Formula (1) | 28.9 dB (+/-0.1 dB) | 28.8 dB | -0.1 dB | 100 % | ![Pass][cv-pass] Pass | | E DIN 45672-3:2023-02 Annex C, Table C.1 | L_v at 20 Hz by Formula (1) | 75.6 dB (+/-0.1 dB) | 75.6 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | E DIN 45672-3:2023-02 Annex C, Table C.1 | L_v at 63 Hz by Formula (1) | 61.4 dB (+/-0.1 dB) | 61.4 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | E DIN 45672-3:2023-02 Annex C, Table C.1 | L_v at 250 Hz by Formula (1) | 20.8 dB (+/-0.1 dB) | 20.8 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | E DIN 45672-3:2023-02 Table 2 | KB weighting at 4 Hz | -4.7 dB (+/-0 dB) | -4.7 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | E DIN 45672-3:2023-02 Table 2 | KB weighting at 8 Hz | -1.7 dB (+/-0 dB) | -1.7 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | E DIN 45672-3:2023-02 Table 2 | KB weighting at 20 Hz | -0.3 dB (+/-0 dB) | -0.3 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | E DIN 45672-3:2023-02 Table 2 | KB weighting at 63 Hz | 0 dB (+/-0 dB) | 0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | E DIN 45672-3:2023-02 Annex A | Table A.1, concrete floor at 8 Hz, the band at 8 Hz | 15 dB (+/-0 dB) | 15 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | E DIN 45672-3:2023-02 Annex A | Table A.1, concrete floor at 20 Hz, the band at 20 Hz | 13.12 dB (+/-0 dB) | 13.12 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | E DIN 45672-3:2023-02 Annex A | Table A.2, timber floor at 8 Hz, the band at 4 Hz | 5.14 dB (+/-0 dB) | 5.14 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | E DIN 45672-3:2023-02 Annex A | Table A.3, ground to a basement, the mean at 31,5 Hz | -9.3 dB (+/-0 dB) | -9.3 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | E DIN 45672-3:2023-02 Annex A | Table A.4, ground to a ground floor, the mean at 12,5 Hz | -1.9 dB (+/-0 dB) | -1.9 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | E DIN 45672-3:2023-02 Annex A | Table A.5, foundation to a concrete floor, the mean at its natural frequency | 17.26 dB (+/-0 dB) | 17.26 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | E DIN 45672-3:2023-02 Annex A | Table A.6, foundation to a timber floor, the mean at its natural frequency | 21.93 dB (+/-0 dB) | 21.93 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass |

Railway vibration by category of train (E DIN 4150-2:2023-08): 100% (20/20)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | E DIN 4150-2:2023-08 Annex B, Example 8 | KB_FTr of the day by Formula (6), 144 metros at 1,0 and 80 trams at 0,7 a track (the print says 0,099 8, which its three-decimal r.m.s. give; its four-decimal inputs give 0,099 7) | 0.0997 (+/-0.0001) | 0.0997 | 0 | 42 % | ![Pass][cv-pass] Pass | | E DIN 4150-2:2023-08 Table 1 | Night A_u of a mixed area, the one cell that changes | 0.1 (+/-0) | 0.1 | 0 | 0 % | ![Pass][cv-pass] Pass | | E DIN 4150-2:2023-08 Annex B, Table B.1 | KB_FTm,Zug of the metro north by Formula (5) | 0.037 (+/-0.0005) | 0.0365 | -0.0005 | 100 % | ![Pass][cv-pass] Pass | | E DIN 4150-2:2023-08 Annex B, Table B.1 | KB_Fmax,Zug of the metro north by Formula (7) | 0.055 (+/-0.0005) | 0.0548 | -0.0002 | 40 % | ![Pass][cv-pass] Pass | | E DIN 4150-2:2023-08 Annex B, Table B.1 | KB_FTm,Zug of the metro south by Formula (5) | 0.047 (+/-0.0005) | 0.0468 | -0.0002 | 40 % | ![Pass][cv-pass] Pass | | E DIN 4150-2:2023-08 Annex B, Table B.1 | KB_Fmax,Zug of the metro south by Formula (7) | 0.07 (+/-0.0005) | 0.0701 | 0.0001 | 20 % | ![Pass][cv-pass] Pass | | E DIN 4150-2:2023-08 Annex B, Table B.1 | KB_FTm,Zug of the tram east by Formula (5) | 0.406 (+/-0.0005) | 0.4061 | 0.0001 | 20 % | ![Pass][cv-pass] Pass | | E DIN 4150-2:2023-08 Annex B, Table B.1 | KB_Fmax,Zug of the tram east by Formula (7) | 0.609 (+/-0.0005) | 0.6091 | 0.0001 | 20 % | ![Pass][cv-pass] Pass | | E DIN 4150-2:2023-08 Annex B, Table B.1 | KB_FTm,Zug of the tram west by Formula (5) | 0.568 (+/-0.0005) | 0.5676 | -0.0004 | 80 % | ![Pass][cv-pass] Pass | | E DIN 4150-2:2023-08 Annex B, Table B.1 | KB_Fmax,Zug of the tram west by Formula (7) | 0.851 (+/-0.0005) | 0.8514 | 0.0004 | 80 % | ![Pass][cv-pass] Pass | | E DIN 4150-2:2023-08 Annex B, Example 9 | KB_FTr of the nullfall by day, Formula (6) with N_r = 1920 | 0.039 (+/-0.0005) | 0.0386 | -0.0004 | 80 % | ![Pass][cv-pass] Pass | | E DIN 4150-2:2023-08 Annex B, Example 9 | KB_FTr of the nullfall by night, Formula (6) with N_r = 960 (the print divides by 920 and gets 0,066) | 0.065 (+/-0.0005) | 0.0649 | -0.0001 | 20 % | ![Pass][cv-pass] Pass | | E DIN 4150-2:2023-08 Annex B, Example 9 | KB_FTr of the planfall by day, Formula (6) with N_r = 1920 | 0.046 (+/-0.0005) | 0.046 | 0 | 7 % | ![Pass][cv-pass] Pass | | E DIN 4150-2:2023-08 Annex B, Example 9 | KB_FTr of the planfall by night, Formula (6) with N_r = 960 (the print divides by 920 and gets 0,096) | 0.094 (+/-0.0005) | 0.0937 | -0.0003 | 60 % | ![Pass][cv-pass] Pass | | E DIN 4150-2:2023-08 Table 3 | A_u of stage I for 3 working days, as printed | 0.67 (+/-0.005) | 0.67 | 0 | 0 % | ![Pass][cv-pass] Pass | | E DIN 4150-2:2023-08 Table 3 | A_r of stage I for 3 working days, as printed | 0.37 (+/-0.005) | 0.37 | 0 | 0 % | ![Pass][cv-pass] Pass | | E DIN 4150-2:2023-08 Table 3 | A_u of stage II for 5 working days, as printed | 0.93 (+/-0.005) | 0.93 | 0 | 0 % | ![Pass][cv-pass] Pass | | E DIN 4150-2:2023-08 Table 3 | A_r of stage II for 5 working days, as printed | 0.67 (+/-0.005) | 0.67 | 0 | 0 % | ![Pass][cv-pass] Pass | | E DIN 4150-2:2023-08 Table 3 | A_u of stage III for 6 working days, as printed | 1.27 (+/-0.005) | 1.27 | 0 | 0 % | ![Pass][cv-pass] Pass | | E DIN 4150-2:2023-08 Table 3 | A_r of stage III for 6 working days, as printed | 1.03 (+/-0.005) | 1.03 | 0 | 0 % | ![Pass][cv-pass] Pass |

Speech intelligibility (ANSI S3.5-1997): 100% (24/24)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ANSI S3.5-1997 Table 3 | Band-importance function normalisation | 1 (+/-0) | 1 | 0 | 0 % | ![Pass][cv-pass] Pass | | ASA WG S3-79 SII.C (clause 5.4) | Equivalent masking spectrum level at 200 Hz | -1.665 (+/-0.001) | -1.665 | 0 | 28 % | ![Pass][cv-pass] Pass | | ANSI S3.5-1997 clause 5.6 | Equivalent disturbance in quiet at 5000 Hz | -23.6 dB (+/-0.01 dB) | -23.6 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ASA WG S3-79 SII.C (clause 6) | SII, noise 30 dB plus hearing loss 40 dB | 0.218454 (+/-0.000001) | 0.218454 | 0 | 0 % | ![Pass][cv-pass] Pass | | ANSI S3.5-1997 Annex C.2 | Worked example (SII.C / R CRAN, errata applied) | 0.851375 (+/-0.000001) | 0.851375 | 0 | 0 % | ![Pass][cv-pass] Pass | | ANSI S3.5-1997 Table C.2 (errata) | Masking Zi at 200 Hz, corrected worksheet | 34.66 dB (+/-0.01 dB) | 34.66 dB | -0.002 dB | 40 % | ![Pass][cv-pass] Pass | | ASA WG S3-79 SII.C (clause 6) | SII, standard speech in quiet, normal hearing | 0.99582517 (+/-0.000001) | 0.99582517 | 0 | 0 % | ![Pass][cv-pass] Pass | | ASA WG S3-79 TO.TST | Official one-third-octave test case | 0.445 (+/-0.001) | 0.445 | 0 | 78 % | ![Pass][cv-pass] Pass | | ASA WG S3-79 TO_1.TST | Official test case, alternative importance | 0.438 (+/-0.001) | 0.438 | 0 | 44 % | ![Pass][cv-pass] Pass | | ASA WG S3-79 CB.TST | Official critical-band test case | 0.273 (+/-0.001) | 0.273 | 0 | 13 % | ![Pass][cv-pass] Pass | | ASA WG S3-79 CB_1.TST | Critical band, alternative importance | 0.41 (+/-0.001) | 0.41 | 0 | 95 % | ![Pass][cv-pass] Pass | | ASA WG S3-79 ECB.TST | Official equally-contributing test case | 0.278 (+/-0.001) | 0.278 | 0 | 28 % | ![Pass][cv-pass] Pass | | ASA WG S3-79 ECB_1.TST | Equally contributing, alternative importance | 0.41 (+/-0.001) | 0.41 | 0 | 95 % | ![Pass][cv-pass] Pass | | ASA WG S3-79 OCTAVE.TST | Official octave-band test case | 0.491 (+/-0.001) | 0.491 | 0 | 8 % | ![Pass][cv-pass] Pass | | ASA WG S3-79 OCTAVE_1.TST | Octave band, alternative importance | 0.323 (+/-0.001) | 0.323 | 0 | 12 % | ![Pass][cv-pass] Pass | | ANSI S3.5-1997 Annex C.1 | Octave-band worked example (SII.C) | 0.504 (+/-0.001) | 0.504 | 0 | 0 % | ![Pass][cv-pass] Pass | | ANSI S3.5-1997 Table C.1 (errata) | Level distortion Li, row i = 5 | 1 (+/-0.01) | 1 | -0.004 | 80 % | ![Pass][cv-pass] Pass | | ANSI S3.5-1997 Table 1 | Critical-band importance normalisation | 1 (+/-0) | 1 | 0 | 0 % | ![Pass][cv-pass] Pass | | ANSI S3.5-1997 Table 2 | Equally-contributing importance, 17 x 0.0588 | 0.9996 (+/-0) | 0.9996 | 0 | 0 % | ![Pass][cv-pass] Pass | | ANSI S3.5-1997 Table 4 | Octave-band importance normalisation | 1 (+/-0) | 1 | 0 | 0 % | ![Pass][cv-pass] Pass | | ANSI S3.5-1997 Table 4 | Octave-band Ui and Xi equal Table 3's | 0 dB (+/-0 dB) | 0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ANSI S3.5-1997 Table 1 | Critical-band table, all 21 rows | 0 (+/-0) | 0 | 0 | 0 % | ![Pass][cv-pass] Pass | | ASA WG S3-79 SII.C (clause 6) | Flat-input cases, all four procedures | 0 (+/-0.000000001) | 0.0000000001 | 0.0000000001 | 10 % | ![Pass][cv-pass] Pass | | ANSI S3.5-1997 Table 3 | Loud-effort speech spectrum level at 1 kHz | 42.16 dB (+/-0 dB) | 42.16 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass |

Objective intelligibility (STOI / ESTOI): 100% (3/3)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | Taal et al. 2011 (Eq. 6, degenerate) | STOI of a signal against itself = 1 (perfect correlation) | 1 (+/-0.000001) | 1 | 0 | 0 % | ![Pass][cv-pass] Pass | | Jensen & Taal 2016 (Eq. 8, degenerate) | ESTOI of a signal against itself = 1 (perfect spectral correlation) | 1 (+/-0.000001) | 1 | 0 | 0 % | ![Pass][cv-pass] Pass | | Taal et al. 2011 (monotonicity with SNR) | STOI rises from -15 dB to +25 dB SNR speech-shaped noise | STOI(+25 dB) - STOI(-15 dB) > 0.2 | 0.462 (0.389 -> 0.851) | 0 | - | ![Pass][cv-pass] Pass |

Impulsive-sound prominence (NT ACOU 112): 100% (2/2)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | NT ACOU 112:2002 Formula 1 | Predicted prominence, OR=1000 dB/s, LD=30 dB | 11.9542 (+/-0.0001) | 11.9542 | 0 | 42 % | ![Pass][cv-pass] Pass | | NT ACOU 112:2002 Formula 2 | Adjustment KI to LAeq at prominence P=10 | 9 dB (+/-0 dB) | 9 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass |

Impulsive-sound prominence (ISO/PAS 1996-3): 100% (2/2)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ISO/PAS 1996-3:2022 3.5 | Onset rate of a 30 dB ramp over 0.30 s | 100 dB/s (+/-0 dB/s) | 100 dB/s | 0 dB/s | 0 % | ![Pass][cv-pass] Pass | | ISO/PAS 1996-3:2022 Formula 3 | Adjustment KI of the ramp onset | 7.1176 dB (+/-0 dB) | 7.1176 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass |

Room noise (ANSI S12.2-2019): 100% (3/3)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ANSI S12.2-2019 Table 1 | NC-40 curve, tangency self-consistency | 40 (+/-0) | 40 | 0 | 0 % | ![Pass][cv-pass] Pass | | ANSI S12.2-2019 Table D.1 | RC-31 Mark II curve, 63 Hz level | 51 (+/-0) | 51 | 0 | 0 % | ![Pass][cv-pass] Pass | | ANSI S12.2-2019 clause D.4 | RC-35 curve, mid-frequency average LMF | 35 (+/-0) | 35 | 0 | 0 % | ![Pass][cv-pass] Pass |

Hearing threshold (ISO 7029 / ISO 389-7): 100% (6/6)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ISO 7029:2017 Table 1 | Median threshold, male age 60 at 4 kHz | 20.209 dB (+/-0.001 dB) | 20.208 dB | 0 dB | 3 % | ![Pass][cv-pass] Pass | | ISO 7029:2017 Table 2 | Upper spread su, male age 60 at 1 kHz | 10.153 dB (+/-0.001 dB) | 10.153 dB | 0 dB | 3 % | ![Pass][cv-pass] Pass | | ISO 389-7:2005 Table 1 | Free-field reference threshold at 1 kHz | 2.4 dB (+/-0 dB) | 2.4 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 389-1:1998 Table 1 (coupler, IEC 60303) | RETSPL of the two named earphones at 1 kHz, and the TDH 39 at 125 Hz | DT 48, 1 kHz = 8 dB; TDH 39, 1 kHz = 7 dB; TDH 39, 125 Hz = 45 dB | DT 48, 1 kHz = 8 dB; TDH 39, 1 kHz = 7 dB; TDH 39, 125 Hz = 45 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 389-1:1998 Table 2 (artificial ear, IEC 60318) | RETSPL of any other supra-aural earphone at 6,3 kHz | 21 dB (+/-0 dB) | 21 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 389-1:1998 Clause 3.7 (hearing level against the audiometric zero) | 40 dB HL at 4 kHz on a TDH 39 is the reference level plus 40 dB | 49.5 dB (+/-0 dB) | 49.5 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass |

Measurement uncertainty (GUM / Supplement 1): 100% (7/7)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ISO/IEC Guide 98-3-1 clause 9.2 | Combined uncertainty, additive model | 2 (+/-0) | 2 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO/IEC Guide 98-3 Table G.2 | Coverage factor, p=0.99, v=16 | 2.92 (+/-0.005) | 2.921 | 0.001 | 20 % | ![Pass][cv-pass] Pass | | ISO/IEC Guide 98-3 Annex G.4 | Welch-Satterthwaite effective dof | 40 (+/-0) | 40 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO/IEC Guide 98-3 Annex H.1 | End-gauge combined uncertainty uc, nm | 31.71 nm (+/-0.01 nm) | 31.71 nm | 0.001 nm | 10 % | ![Pass][cv-pass] Pass | | ISO/IEC Guide 98-3 Annex H.1 | End-gauge expanded uncertainty U99, nm | 92.1 nm (+/-0.1 nm) | 92.1 nm | 0.04 nm | 40 % | ![Pass][cv-pass] Pass | | ISO/IEC Guide 98-3 Annex H.2 (Table H.3) | Correlated V/I/phi budget: uc(R), ohm | 0.071 ohm (+/-0.001 ohm) | 0.071 ohm | 0 ohm | 7 % | ![Pass][cv-pass] Pass | | ISO/IEC Guide 98-3-1 Table 3 (clause 9.2.3) | Seeded Monte Carlo, rectangular sum: 95 % interval endpoint | +/-3.88 (u = 2.0) | +/-3.886 (u = 2.002) | 0.006 | - | ![Pass][cv-pass] Pass |

Noise-induced hearing loss (ISO 1999): 100% (6/6)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ISO 1999:2013 Table D.2 | Median NIPTS, 4 kHz, 90 dB, 20 yr | 13 dB (+/-0.5 dB) | 12.9 dB | -0.057 dB | 11 % | ![Pass][cv-pass] Pass | | ISO 1999:2013 Table D.2 | Worst-10 % NIPTS, 4 kHz, 90 dB, 20 yr | 18 dB (+/-0.5 dB) | 17.8 dB | -0.239 dB | 48 % | ![Pass][cv-pass] Pass | | ISO 1999:2013 Table D.4 | Worst-10 % NIPTS, 3 kHz, 100 dB, 40 yr | 60 dB (+/-0.5 dB) | 59.8 dB | -0.172 dB | 34 % | ![Pass][cv-pass] Pass | | ISO 1999:2013 Annex C, Formulae (C.6) to (C.8) | NIPTS at 1/2/4 kHz, 90 dB, 30 yr, Q = 10 % (annex inputs) | 0, 9, 19 dB | 0, 9, 19 dB | 0 dB | - | ![Pass][cv-pass] Pass | | ISO 1999:2013 Annex C, Formula (C.5) | Compressed 4 kHz shift, Formula (1) with the annex's H = 36 dB | 13.3 dB (+/-0.1 dB) | 13.3 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 1999:2013 Annex C, Formula (C.11) | Hearing threshold level with age and noise, 1/2/4 kHz mean, Q = 10 % | 31.1 dB (+/-0.1 dB) | 31.1 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass |

Hearing protector attenuation (ISO 4869-1): 100% (6/6)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ISO 4869-1:2018 Annex A, Table A.2 | Within-laboratory budget: u and U95 from the three components | 30/30 cells of Table A.2 | 30/30 cells of Table A.2 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 4869-1:2018 Annex B, Table B.2 | Between-laboratory budget: u and U95 from the three components | 30/30 cells of Table B.2 | 30/30 cells of Table B.2 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 4869-1:2018 Annex A, Table A.3 | Earmuff on 16 subjects: mean, sigma, u = sigma/4 and U95, 7 bands | Table A.3 derived rows at 1 dp, 28 cells | max deviation 0.000 dB | 0.000 dB | - | ![Pass][cv-pass] Pass | | ISO 4869-1:2018 Annex B, Table B.1 | Two tests of one earmuff: criterion row, difference row and verdict | criterion row at 1 dp; difference row within 0.1 dB of the rounded m2; significant at 8000 Hz only | criterion max deviation 0.000 dB; difference max deviation 0.056 dB; significant at 8000 Hz | 0.056 dB | - | ![Pass][cv-pass] Pass | | ISO 4869-1:2018 B.1.1 and B.2 | Minimum significant difference sqrt(2) x U95, 250 Hz to 4 kHz | A.2 earplug = 3.3 dB; A.2 earmuff = 2.3 dB; B.2 earplug = 9.3 dB; B.2 earmuff = 6.9 dB | A.2 earplug = 3.3 dB; A.2 earmuff = 2.3 dB; B.2 earplug = 9.3 dB; B.2 earmuff = 6.9 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 4869-1:2018 Table 1 | Allowable sound-field variation by microphone free-field rejection | 5/5 rows of Table 1, the last one 'not suitable' | 5/5 rows of Table 1 | exact | 0 % | ![Pass][cv-pass] Pass |

Hearing protectors (ISO 4869-2): 100% (4/4)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ISO 4869-2:2018 Annex A, Table A.1 | Assumed protection: mean and spread over 16 subjects, 8 bands | m_f and s_f equal to Table A.1 at 1 dp, all 8 bands | max deviation 0.000 dB | 0.000 dB | - | ![Pass][cv-pass] Pass | | ISO 4869-2:2018 Formula (2), Annex B | Octave-band method: Table B.1 net levels and L'p,A84 | Table B.1 rows exact; L'p,A84 = 81.4 dB | rows within 0.000 dB; 81.4 dB | +0.000 dB | - | ![Pass][cv-pass] Pass | | ISO 4869-2:2018 Formulae (12) to (15), Annex C | HML method: 16 subject triples, statistics and H84/M84/L84 | Table C.2 exact; H84/M84/L84 = (24, 18, 13) dB | within 0.000 dB; (24, 18, 13) dB | 0.000 dB | - | ![Pass][cv-pass] Pass | | ISO 4869-2:2018 Formulae (16) to (24) | HML and SNR applications land on the annexes' 82 dB | PNR84 = 22,5 dB; SNR84 = 21 dB; both report 82 dB | 22.5 dB; 21 dB; 82 and 82 dB | +0.000 dB | - | ![Pass][cv-pass] Pass |

Active noise reduction earmuffs (ISO 4869-6): 100% (8/8)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ISO 4869-6:2019 Annex A, Table A.2 | Within-laboratory budget of the mean active insertion loss | 5/5 cells of Table A.2 | 5/5 cells of Table A.2 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 4869-6:2019 Annex A, Table A.3 | Active insertion loss of 16 subjects: mean and sigma, 8 bands | 16/16 cells of the mean and sigma rows | 16/16 cells of the mean and sigma rows | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 4869-6:2019 Annex A, Table A.3 | u = sigma/4 and U95 = 2u, as the table forms them from its rounded rows | 16/16 cells from the rounded rows; 7 moved at full precision | 16/16 cells of the u and U95 rows | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 4869-6:2019 5.5 b), calculation example | Lower-ear active insertion loss from the MIRE levels, 16 x 24 cells | 384/384 cells of rows 134-149 | 384/384 cells of rows 134-149 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 4869-6:2019 5.5 a), calculation example | REAT interpolated linearly in hertz into 24 one-third octaves | 384/384 cells of rows 182-197 | 384/384 cells of rows 182-197 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 4869-6:2019 5.5 c), calculation example | Total attenuation per one-third octave, 16 x 24 cells | 384 cells of rows 206-221, within 0.05 dB | max deviation 0.050 dB | 0.050 dB | - | ![Pass][cv-pass] Pass | | ISO 4869-6:2019 Formula (1), calculation example | Octave-band total attenuation of 16 subjects, 8 bands | 128 cells of rows 230-245, within 0.1 dB | max deviation 0.076 dB | 0.076 dB | - | ![Pass][cv-pass] Pass | | ISO 4869-6:2019 5.5 e), calculation example | Mean, SD and APV84 of the octave totals | 16/16 cells of rows 247-248; APV84 within 0.1 dB of row 249 | 16/16 cells; APV84 max deviation 0.083 dB | 0.083 dB | - | ![Pass][cv-pass] Pass |

Multiple-shock whole-body vibration (ISO 2631-5): 100% (6/6)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ISO 2631-5:2018 Formula 3 | Daily acceleration dose, 5 x 40 m/s2 peaks | 55.97 m/s² (+/-0.01 m/s²) | 55.97 m/s² | -0.002 m/s² | 20 % | ![Pass][cv-pass] Pass | | ISO 2631-5:2018 Formula C.3 | Stress variable R, Annex C male example | 1.22 (+/-0.01) | 1.22 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 2631-5:2018 Formula C.5 | Injury probability, Annex C male example | 0.37 (+/-0.01) | 0.37 | -0.003 | 30 % | ![Pass][cv-pass] Pass | | ISO 2631-5:2018 Annex C NOTE 5 | Compressive stress Sd, female example | 1.4 MPa (+/-0.01 MPa) | 1.4 MPa | -0.001 MPa | 10 % | ![Pass][cv-pass] Pass | | ISO 2631-5:2018 Annex C NOTE 5 | Stress variable R, female example | 0.97 (+/-0.01) | 0.96 | -0.008 | 80 % | ![Pass][cv-pass] Pass | | ISO 2631-5:2018 Formula 1 vs Annex D Table D.1 | Seat-to-spine transfer vs the 256 Hz digital filter (0,5-80 Hz) | max abs(Formula 1 - filter) ≤ 0,04 | 0.001 | 0.001 | 2 % | ![Pass][cv-pass] Pass |

Sound absorption in enclosed spaces (EN 12354-6): 100% (2/2)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | EN 12354-6:2003 Formula 1 | Equivalent absorption area, Annex E bare room | 2.26 m² (+/-0.01 m²) | 2.26 m² | 0.003 m² | 30 % | ![Pass][cv-pass] Pass | | EN 12354-6:2003 Formula 5 | Reverberation time, Annex E bare room | 2.1 s (+/-0.1 s) | 2.1 s | 0.003 s | 6 % | ![Pass][cv-pass] Pass |

Audiometric test methods (ISO 8253): 100% (19/19)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ISO 8253-1:2010 Table 2 | Maximum permissible ambient levels for air conduction, three test ranges | 75/75 cells of Table 2 | 75/75 cells of Table 2 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8253-1:2010 Table 3 | Average sound attenuation of the supra-aural, ER-3A and HDA 200 earphones | 75/75 cells of Table 3 | 75/75 cells of Table 3 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8253-1:2010 Table 4 | Maximum permissible ambient levels for bone conduction, two test ranges | 50/50 cells of Table 4 | 50/50 cells of Table 4 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8253-1:2010 11.1 | The limit at 1 kHz with each adjustment of 11.1 and the NOTE to Table 2 | supra-aural = 23 dB; ER-3A = 45 dB; shift +5 dB = 31 dB; lowest HL 10 dB = 33 dB | supra-aural = 23 dB; ER-3A = 45 dB; shift +5 dB = 31 dB; lowest HL 10 dB = 33 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8253-1:2010 A.3.3 | Audiometer standard uncertainty, air conduction up to 4 kHz, 5 dB steps | u(delta_eq) = 2.3 dB | u(delta_eq) = 2.3 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8253-1:2010 A.3.4 | Transducer standard uncertainty up to and above 4 kHz | up to 4 kHz = 2.9 dB; above 4 kHz = 3.9 dB | up to 4 kHz = 2.9 dB; above 4 kHz = 3.9 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8253-1:2010 Table A.2 | The four components, combined and expanded uncertainty, air conduction below 4 kHz, no masking | u1 L'_HT = 2.5 dB; u2 delta_eq = 2.3 dB; u3 delta_tr = 2.9 dB; u4 delta_n = 2 dB; u = 4.9 dB; U = 10 dB | u1 L'_HT = 2.5 dB; u2 delta_eq = 2.3 dB; u3 delta_tr = 2.9 dB; u4 delta_n = 2 dB; u = 4.9 dB; U = 10 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8253-1:2010 6.2.4.2 | Ascending method: three responses at one level out of five ascents | threshold = 30 dB | threshold = 30 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8253-1:2010 6.2.4.3 | Bracketing method: mean of the two averages to the nearest 5 dB step | mean = 33.333 dB; threshold = 35 dB | mean = 33.333 dB; threshold = 35 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8253-1:2010 6.3.5 | Automatic recording: first reversal and small excursions dropped, rounded up | peaks = 30.5 dB; valleys = 20 dB; mean = 25.25 dB; threshold = 26 dB | peaks = 30.5 dB; valleys = 20 dB; mean = 25.25 dB; threshold = 26 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8253-1:2010 7.5 | Sweep-frequency audiometry: three nearest peaks and valleys, rounded | mean = 25.3 dB; threshold = 25 dB | mean = 25.3 dB; threshold = 25 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8253-1:2010 6.2.3.2, Step 3 | Repeat at 1 kHz: 5 dB or less agrees, 10 dB or more retests further | 4/4 repeats judged as Step 3 words it | 4/4 repeats judged as Step 3 words it | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8253-1:2010 6.2.3.2 | Cross-hearing: a hearing level of 40 dB or more calls for caution | 3/3 levels judged as 6.2.3.2 words it | 3/3 levels judged as 6.2.3.2 words it | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8253-1:2010 8.4 | Average vibrotactile threshold, mastoid and forehead placement | 250 Hz mastoid = 40 dB; 500 Hz mastoid = 60 dB; 1000 Hz mastoid = 70 dB; 250 Hz forehead = 30 dB; 500 Hz forehead = 50 dB; 1000 Hz forehead = 60 dB | 250 Hz mastoid = 40 dB; 500 Hz mastoid = 60 dB; 1000 Hz mastoid = 70 dB; 250 Hz forehead = 30 dB; 500 Hz forehead = 50 dB; 1000 Hz forehead = 60 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8253-2:2009 Table 2 | Maximum permissible ambient levels for sound field audiometry, to 12,5 kHz | 54/54 cells of Table 2 | 54/54 cells of Table 2 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8253-2:2009 Table 2, footnote a | Derived from ISO 8253-1 for binaural listening; the cells equal Table 4 less 3 dB, an offset the library reads off the two tables | 50/50 cells equal to Table 4 less 3 dB | 50/50 cells equal to Table 4 less 3 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8253-2:2009 Table B.1 | Increase at the nearer ear at 45 and 90 degrees, 125 Hz to 12,5 kHz | 48/48 cells of Table B.1 | 48/48 cells of Table B.1 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8253-2:2009 Table 1 | Allowable field variation by the microphone's front-to-random index | index 5 dB = 5 dB; index 4.5 dB = 4.5 dB; index 4 dB = 4 dB | index 5 dB = 5 dB; index 4.5 dB = 4.5 dB; index 4 dB = 4 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 8253-2:2009 5.2 c) and 5.4 c) | Axial level difference the inverse distance law gives at 1 m (closed form; the standard prints no value) | free = 2.626 dB; quasi-free = 1.743 dB | free = 2.626 dB; quasi-free = 1.743 dB | exact | 0 % | ![Pass][cv-pass] Pass |

Earmuff insertion loss on a test fixture (ISO 4869-3): 100% (4/4)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ISO 4869-3:2007 Table B.1 and B.4 | Combined and expanded uncertainty of the typical budget | u = 1.3 dB; U = 2.6 dB | u = 1.3 dB; U = 2.6 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 4869-3:2007 5.2.2, Table 1 | Allowable field variation, read with the text for an index of 5 dB | index 5 dB = 5 dB; index 4.5 dB = 4 dB; index 4 dB = 4 dB | index 5 dB = 5 dB; index 4.5 dB = 4 dB; index 4 dB = 4 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 4869-3:2007 Table A.1 | Front-to-random index of the fixture, and the bands it may test itself | 14/14 cells of Table A.1 and its suitable bands | 14/14 cells of Table A.1 and its suitable bands | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 4869-3:2007 5.1.4 | Least acoustic isolation of the fixture in each band, 63 Hz to 8 kHz | 22/22 bands of 5.1.4 | 22/22 bands of 5.1.4 | exact | 0 % | ![Pass][cv-pass] Pass |

Impulsive sound exposure distribution (ISO 13474): 100% (7/7)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ISO 13474:2009 Equations (10) to (13), Table A.4 | Sorted levels and class boundaries of the 27 classes | 81/81 levels and boundaries of Table A.4 | 81/81 levels and boundaries of Table A.4 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 13474:2009 Equation (14), Table A.4 | Probability of each class over 07:00 to 19:00, sorted with its level | 27/27 probabilities of Table A.4 | 27/27 probabilities of Table A.4 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 13474:2009 Equation (15), Table A.4 | Probability density of each class, in 1/dB | 27/27 densities of Table A.4 | 27/27 densities of Table A.4 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 13474:2009 Equation (7), Figure A.3 | Long-term average single-event level LT1 of the TOW launcher | 37 dB (+/-0.05 dB) | 37.01 dB | 0.01 dB | 20 % | ![Pass][cv-pass] Pass | | ISO 13474:2009 Equation (A.4), Figure A.3 | Long-term level LT2 from the distribution spread with sigma = 5 dB | 37 dB (+/-0.05 dB) | 36.96 dB | -0.042 dB | 84 % | ![Pass][cv-pass] Pass | | ISO 13474:2009 Equation (22) | Shift of the Gaussian subclasses at sigma = 5 dB, against the printed integral | 2.878231366 dB (+/-0.000000001 dB) | 2.878231366 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 13474:2009 Equation (25), Figure A.3 | Level exceeded by 50 % of the events, L50 | 31.5 dB (+/-0.05 dB) | 31.46 dB | -0.044 dB | 88 % | ![Pass][cv-pass] Pass |

Soundscape analysis (ISO/TS 12913-3:2019; the 2025 edition revises Annex A): 100% (14/14)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ISO/TS 12913-3:2019 A.2, Table A.1 | Scale value of each of the five boxes of the four parts of Method A | 20/20 scale values of Table A.1 | 20/20 scale values of Table A.1 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO/TS 12913-3:2019 Formulas (A.1) and (A.2) | Every attribute at one score puts the respondent at the origin | 0 (+/-0.000000000001) | max \|P\|, \|E\| below 1e-12 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO/TS 12913-3:2019 A.3 | Range of the coordinates, 4 + sqrt(32), printed as 9,66 | 9.66 (+/-0.005) | 9.6569 | -0.0031 | 62 % | ![Pass][cv-pass] Pass | | ISO/TS 12913-3:2019 A.3 | The four extremes of P and E divided by 4 + sqrt(32) are plus and minus 1 | 4/4 normalised extremes at plus or minus 1 | 4/4 normalised extremes at plus or minus 1 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO/TS 12913-3:2019 Figure A.1, Formulas (A.1) and (A.2) | Each attribute raised alone moves the point along its own arrow of the figure | 8/8 attribute axes of Figure A.1 | 8/8 attribute axes of Figure A.1 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO/TS 12913-3:2019 Formula (A.3) | Spearman's coefficient without ties is Pearson's coefficient of the ranks | 0.9300699301 (+/-0) | 0.9300699301 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO/TS 12913-3:2019 Formula (A.4) against scipy.stats.spearmanr | Spearman's coefficient with ties, on 93 real ordinal answers | -0.3898917508 (+/-0) | -0.3898917508 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO/TS 12913-3:2019 A.4 against scipy.stats.spearmanr | Probability value of Spearman's coefficient, Student t with n - 2 degrees of freedom | 0.00012214 (+/-1e-07%) | 0.00012214 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO/TS 12913-3:2019 Formulas (B.1) and (B.2) against scipy.stats.pearsonr | Pearson's coefficient with the covariance over n | -0.3898445719 (+/-0) | -0.3898445719 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO/TS 12913-3:2019 B.2 against scipy.stats.t.interval | Upper end of the 95 % confidence interval of a Method B mean | 3.5892088275 (+/-0) | 3.5892088275 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO/TS 12913-3:2019 Table D.1 | Metrics of each parameter and the representative-value rule, as printed | 24/24 cells of Table D.1 | 24/24 cells of Table D.1 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO/TS 12913-3:2019 D.2 | Representative LAeq,T of two ears 6 dB apart is the louder ear's | 77.3004 dB (+/-0 dB) | 77.3004 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO/TS 12913-2:2018 Figures C.2 to C.6 | Response categories of the four parts of Method A, and the eight attributes | 33/33 printed strings of Annex C | 33/33 printed strings of Annex C | exact | 0 % | ![Pass][cv-pass] Pass | | ISO/TS 12913-2:2018 A.3 f) with ISO 532-1:2017 | Root mean cubed loudness Nrmc of an ear, by the formula of the NOTE | 18.245392 (+/-1e-10%) | 18.245392 | 0 | 0 % | ![Pass][cv-pass] Pass |

Prominent discrete tones (ECMA-418-1): 100% (2/2)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ECMA-418-1:2024 Clause 10 Formula (2) | Critical band at 1 kHz (f1,c / f2,c / dfc) | dfc 162.2 Hz (+/-0.05 Hz); edges 922.2-1084.4 Hz | dfc 162.22 Hz; edges 922.2-1084.4 Hz | 0.017 Hz | - | ![Pass][cv-pass] Pass | | ECMA-418-1:2024 Clause 11.6 Formula (14) | Proximity spacing dfprox at 150 / 850 Hz | 23 Hz @ 150 Hz; 63.8 Hz @ 850 Hz (+/-0.5 Hz) | 23.0 Hz; 63.8 Hz | +0.004; +0.044 Hz | - | ![Pass][cv-pass] Pass |

Tonal audibility (ISO/PAS 20065): 100% (11/11)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ISO/PAS 20065:2016 Formulae (12)-(14) | Audibility at 137.3 Hz, Annex E spectrum 1 | 4.99 dB (+/-0.05 dB) | 5.01 dB | 0.022 dB | 44 % | ![Pass][cv-pass] Pass | | ISO/PAS 20065:2016 Formula (13) | Masking index av at 137.3 / 592.2 Hz | -2.02 dB @ 137.3 Hz; -2.4 dB @ 592.2 Hz (+/-0.005 dB) | -2.017 dB; -2.400 dB | +0.003; +0.000 dB | - | ![Pass][cv-pass] Pass | | ISO/PAS 20065:2016 Formula (20) | Mean audibility of the five spectra, Annex E | 6.96 dB (+/-0.05 dB) | 6.98 dB | 0.018 dB | 36 % | ![Pass][cv-pass] Pass | | ISO/PAS 20065:2016 Formula (6) | Mean narrow-band level LS from spectrum, Table E.1 | 49.22 dB (+/-0.02 dB) | 49.22 dB | -0.001 dB | 5 % | ![Pass][cv-pass] Pass | | ISO/PAS 20065:2016 Clause 6 | Extended uncertainty U of the 137.3 Hz tone, Table E.2 | 2.79 dB (+/-0.02 dB) | 2.8 dB | 0.006 dB | 30 % | ![Pass][cv-pass] Pass | | ISO/PAS 20065:2016 Formulae (28)-(29) | Extended uncertainty of the mean audibility, Annex E Step 4 | 1.38 dB (+/-0.01 dB) | 1.38 dB | -0.003 dB | 30 % | ![Pass][cv-pass] Pass | | ISO/PAS 20065:2016 Formula (8) | Tone level LT from spectrum, Table E.1 | 67.96 dB (+/-0.02 dB) | 67.96 dB | -0.005 dB | 25 % | ![Pass][cv-pass] Pass | | ISO/PAS 20065:2016 Clause 5.3.8 | Tone detection over the spectrum, Table E.1 | tones at [118.4, 137.3, 158.8] Hz | tones at [118.4, 137.3, 158.8] Hz | exact | - | ![Pass][cv-pass] Pass | | ISO/PAS 20065:2016 Clause 5.3.8 Step 3 | Same-band FG combination inside analyze_spectrum, Table E.2 row 2 FG | 72.15 dB (+/-0.02 dB) | 72.15 dB | -0.002 dB | 10 % | ![Pass][cv-pass] Pass | | ISO/PAS 20065:2016 Formula (17) | Multi-tone FG combination, Table E.1 | 72.15 dB (+/-0.02 dB) | 72.15 dB | -0.002 dB | 10 % | ![Pass][cv-pass] Pass | | ISO/PAS 20065:2016 Formulae (18)/(19) | Two-tone separation fD (DIN 45681 Annex J), 137.3 / 212 Hz | fD(137.3)=24.09, fD(212)=21.0 Hz; Annex E pair combined | fD(137.3)=24.09, fD(212)=21.00 Hz; Annex E pair combined | exact | - | ![Pass][cv-pass] Pass |

Psychoacoustic annoyance & fluctuation strength (Fastl & Zwicker): 100% (3/3)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | Fastl & Zwicker Eqs (16.2)-(16.4) | Psychoacoustic annoyance, worked (N5,S,F,R) tuple | 37.0478 (+/-0.001) | 37.0477 | -0.0001 | 10 % | ![Pass][cv-pass] Pass | | Fastl & Zwicker Eq (10.2) | Fluctuation strength of AM broadband noise (60 dB, m=1, 4 Hz) | 3.6943 vacil (+/-0.001 vacil) | 3.6943 vacil | 0 vacil | 3 % | ![Pass][cv-pass] Pass | | Fastl & Zwicker Ch. 10 / Osses et al. 2016 | Fluctuation-strength calibration: 1 kHz / 60 dB / m=1 / 4 Hz AM tone | 1 vacil (+/-0.05 vacil) | 1 vacil | 0 vacil | 0 % | ![Pass][cv-pass] Pass |

Electroacoustics: distortion & frequency response: 100% (20/20)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | IEC 60268-3:2013 (14.12.3.2) | THD (rel. total RMS, the R convention the clause defines) | 0.112853 (+/-0.0001) | 0.112853 | 0 | 0 % | ![Pass][cv-pass] Pass | | Closed-form harmonic synthesis (THD_F convention) | THD (rel. fundamental, the widespread datasheet convention) | 0.113578 (+/-0.0001) | 0.113578 | 0 | 0 % | ![Pass][cv-pass] Pass | | IEC 60268-5:2003 (20.3/20.4) | Characteristic sensitivity level, 1 W into 8 ohm at 1 m (flat 90 dB) | 90 dB (+/-0.000001 dB) | 90 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | IEC 60268-5:2003 (21.2) | Effective frequency range = -10 dB crossings (50 Hz / 18 kHz) | 50 Hz / 18000 Hz (ref -10 dB crossings) | 50.000 Hz / 18000.0 Hz | -0.000 / -0.000 Hz | - | ![Pass][cv-pass] Pass | | IEC 60268-3:2013 (14.12.5) | 2nd-order harmonic distortion d2 (rel. total) | 0.099361 (+/-0.0001) | 0.099361 | 0 | 0 % | ![Pass][cv-pass] Pass | | IEC 60268-4:2014 (11.1/11.3) | Microphone sensitivity level, 12.5 mV/Pa -> 20 lg 0.0125 dB re 1 V/Pa | -38.0618 dB (+/-0.00001 dB) | -38.0618 dB | 0 dB | 3 % | ![Pass][cv-pass] Pass | | IEC 60268-4:2014 (12.2) | Effective frequency range = +/-3 dB tolerance crossings (40 Hz / 18 kHz) | 40 Hz / 18000 Hz (+/-3 dB tolerance crossings) | 40.000 Hz / 18000.0 Hz | 0.000 / -0.000 Hz | - | ![Pass][cv-pass] Pass | | IEC 60268-4:2014 (13.2.2) | Directivity index of the ideal cardioid, 10 lg 3 dB (11.2.2 a integral) | 4.771213 dB (+/-0.005 dB) | 4.771214 dB | 0.000001 dB | 0 % | ![Pass][cv-pass] Pass | | IEC 60268-4:2014 (17.2) | Equivalent noise level, 2.5 uV over 12.5 mV/Pa -> 200 uPa = 20 dB SPL | 20 dB SPL (+/-0 dB SPL) | 20 dB SPL | 0 dB SPL | 0 % | ![Pass][cv-pass] Pass | | IEC 60268-3:2013 (14.12.7.2 g) | Modulation distortion d_m,2 (arithmetic sideband sum over U_2,f2) | 0.16 (+/-0.0001) | 0.16 | 0 | 0 % | ![Pass][cv-pass] Pass | | IEC 60268-3:2013 (14.12.7.2 h) | Modulation distortion d_m,3 (arithmetic sideband sum over U_2,f2) | 0.08 (+/-0.0001) | 0.08 | 0 | 0 % | ![Pass][cv-pass] Pass | | IEC 60268-3:2013 (14.12.8.1 a) | Difference-frequency distortion d_d,2 (over U_2,ref = 2 U_2,f2) | 0.03 (+/-0.0001) | 0.03 | 0 | 0 % | ![Pass][cv-pass] Pass | | IEC 60268-3:2013 (14.12.8.1 b) | Difference-frequency distortion d_d,3 (arithmetic product sum) | 0.04 (+/-0.0001) | 0.04 | 0 | 0 % | ![Pass][cv-pass] Pass | | IEC 60268-3:2013 (14.12.10) | Total difference-frequency distortion (8 kHz / 11.95 kHz tones) | 0.03605551 (+/-0.0001) | 0.03605551 | 0 | 0 % | ![Pass][cv-pass] Pass | | ITU-R BS.468-4 Table 1 | Weighting network response at the 6.3 kHz peak (14.12.11 network) | 12.2 dB (+/-0.05 dB) | 12.2167 dB | 0.0167 dB | 33 % | ![Pass][cv-pass] Pass | | IEC 60268-3:2013 (14.12.9) | DIM of the 15 kHz / 3.15 kHz signal (Table 2, 9 products) | 0.168819 (+/-0.0001) | 0.168819 | 0 | 0 % | ![Pass][cv-pass] Pass | | Bendat & Piersol, Random Data 4e | H1 recovers a known first-order IIR gain at 1 kHz | 0.8954 (+/-2%) | 0.8954 | 0 | 0 % | ![Pass][cv-pass] Pass | | Bendat & Piersol, Random Data 4e | Ordinary coherence = 1 for a noiseless LTI path | 1 (+/-0.001) | 1 | 0 | 0 % | ![Pass][cv-pass] Pass | | AES17-2015 (6.4.2 / 5.2.7) | Idle channel noise, 1 kHz -20 dBFS tone (CCIR-RMS -5.63 dB offset) | -25.63 dB (+/-0.01 dB) | -25.63 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | AES17-2015 (6.4.1) | Dynamic range, full-scale reference over a -40 dBFS residual at 2 kHz | 40 dB (+/-0.6 dB) | 40.38 dB | 0.385 dB | 64 % | ![Pass][cv-pass] Pass |

Calibrated spectral analysis (Bendat & Piersol): 100% (12/12)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | Bendat & Piersol, Random Data 4e Eq. (5.67) | White-noise autospectral density = sigma^2/(fs/2) | 0.000977 (+/-3%) | 0.000982 | 0.000005 | 17 % | ![Pass][cv-pass] Pass | | Bendat & Piersol, Random Data 4e Eq. (8.158) | PSD random error = 1/sqrt(nd) (Monte Carlo, 100 seeded records) | 0.1768 (+/-6%) | 0.1764 | -0.0004 | 4 % | ![Pass][cv-pass] Pass | | Bendat & Piersol, Random Data 4e Eq. (8.163) | 95% chi-square confidence interval coverage (Monte Carlo) | 0.95 (+/-0.025) | 0.94 | -0.01 | 40 % | ![Pass][cv-pass] Pass | | Bendat & Piersol, Random Data 4e Eqs. (9.55)/(6.39) | Coherent output spectrum of a known-SNR path: gamma^2 = SNR/(1+SNR) | 0.7191 (+/-0.03) | 0.7255 | 0.0064 | 21 % | ![Pass][cv-pass] Pass | | Closed-form power-law slope (10*lg(2) dB/octave per unit exponent) | Pink-noise PSD slope over 20 Hz - 20 kHz, dB/octave | -3.0103 dB/oct (+/-0.05 dB/oct) | -3.0116 dB/oct | -0.0013 dB/oct | 3 % | ![Pass][cv-pass] Pass | | IEC 60268-1:1985 Clause A2.1 / Table AII | 5 ms burst of 5 kHz tone at 48 kHz: gate RMS = A/sqrt(2) (integral periods) | 0.707107 (+/-0) | 0.707107 | 0 | 0 % | ![Pass][cv-pass] Pass | | Harris 1978 closed form (DFT-even Hann) | Hann window ENBW = n*sum(w^2)/sum(w)^2 = 3/2 exactly | 1.5 (+/-0) | 1.5 | 0 | 0 % | ![Pass][cv-pass] Pass | | Constant-power 1/n-octave kernel (closed form) | 1/3-octave smoothed line level = P*df/(f0*(2^(1/6)-2^(-1/6))) | 0.021592 (+/-1e-07%) | 0.021592 | 0 | 0 % | ![Pass][cv-pass] Pass | | Percival & Walden 1993, Table 382 | Slepian taper concentration lambda_14(31, 8/31), quadruple-precision table | 0.92943822082 (+/-0.000000000001) | 0.92943822082 | 0 | 0 % | ![Pass][cv-pass] Pass | | Percival & Walden 1993, Section 7.2 / Eq. (333) | Multitaper white-noise density = sigma^2/(fs/2), NW=4, K=7 tapers | 0.000977 (+/-3%) | 0.000963 | -0.000014 | 48 % | ![Pass][cv-pass] Pass | | Percival & Walden 1993, Eq. (369a) tone calibration | Multitaper 'spectrum' scaling reads a sinusoid peak at A^2/2 | 4.5 (+/-0.01%) | 4.500003 | 0.000003 | 1 % | ![Pass][cv-pass] Pass | | Percival & Walden 1993, Eq. (370b) | Adaptive multitaper dof -> 2K on white noise (weights -> uniform) | 14 (+/-2%) | 13.9847 | -0.0153 | 5 % | ![Pass][cv-pass] Pass |

Multiple-input coherence (Bendat & Piersol): 100% (5/5)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | Bendat & Piersol, Random Data 4e Problem 7.2 / Eqs. (7.86)/(7.94) | Conditioned coherent output of the 2nd input abs(G2y.1)^2/G22.1 = 4/3 exactly | 1.333333333 (+/-0) | 1.333333333 | 0 | 0 % | ![Pass][cv-pass] Pass | | Bendat & Piersol, Random Data 4e Problem 7.2 / Eqs. (7.87)/(7.116) | Partial coherence gamma^2_2y.1 = 2/15 and multiple coherence = 0.7 | 0.7 (+/-0) | 0.7 | 0 | 0 % | ![Pass][cv-pass] Pass | | Bendat & Piersol, Random Data 4e Eq. (7.35) with Eqs. (6.40)/(6.41) | Multiple coherence of a known-SNR system: gamma^2_{y:x} = SNR/(1+SNR) | 0.8889 (+/-0.03) | 0.8913 | 0.0024 | 8 % | ![Pass][cv-pass] Pass | | Bendat & Piersol, Random Data 4e Eq. (7.117) | Uncorrelated inputs: multiple coherence = sum of ordinary coherences | 0 (+/-0.02) | -0.0098 | -0.0098 | 49 % | ![Pass][cv-pass] Pass | | Bendat & Piersol, Random Data 4e Eqs. (7.88)/(7.121) | Output-power decomposition Gyy = sum of Gvi + Gnn (exact) | 0 (+/-0.000000000001) | 0 | 0 | 0 % | ![Pass][cv-pass] Pass |

Time-frequency analysis (Bendat & Piersol): 100% (3/3)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | Bendat & Piersol, Random Data 4e Eq. (12.173) | Spectrogram of an on-bin tone reads its mean square A^2/2 in every column | 2 (+/-1e-07%) | 2 | 0 | 0 % | ![Pass][cv-pass] Pass | | Parseval + COLA identity (Hann taper, 75% overlap) | Time-integrated STFT power = time-domain energy of an interior burst | 0.236151 (+/-1e-10%) | 0.236151 | 0 | 0 % | ![Pass][cv-pass] Pass | | Bendat & Piersol, Random Data 4e Eqs. (11.128)-(11.130) | Zoom FFT tone amplitude = demodulate-decimate-DFT chain, machine precision | 0.7 (+/-1e-10%) | 0.7 | 0 | 0 % | ![Pass][cv-pass] Pass |

Correlation, time delay and envelope (B&P / Knapp & Carter): 100% (7/7)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | Bendat & Piersol, Random Data 4e Eq. (5.21) | Cross-correlation peak of a 16-sample pure delay, samples | 16 (+/-0.001) | 16 | 0 | 1 % | ![Pass][cv-pass] Pass | | Knapp & Carter 1976, Table I (PHAT) + sub-sample interpolation | GCC-PHAT estimate of an exact 12.25-sample fractional delay, samples | 12.25 (+/-0.005) | 12.2483 | -0.0017 | 34 % | ![Pass][cv-pass] Pass | | Bendat & Piersol, Random Data 4e Eq. (5.101) | Cross-spectrum phase-slope estimate of the same fractional delay | 12.25 (+/-0.001) | 12.2498 | -0.0002 | 20 % | ![Pass][cv-pass] Pass | | Bendat & Piersol, Random Data 4e Eq. (8.120) | BLWN autocorrelation coefficient at 3 samples vs sin(2piBt)/(2piBt) | -0.1559 (+/-0.02) | -0.1666 | -0.0107 | 53 % | ![Pass][cv-pass] Pass | | Bendat & Piersol, Random Data 4e Example 8.5 | Random error of the correlation peak: B=100 Hz, T=5 s, M/S=N/S=10 | 0.35 (+/-0.001) | 0.3493 | -0.0007 | 70 % | ![Pass][cv-pass] Pass | | Bendat & Piersol, Random Data 4e Table 13.1 | Hilbert transform of cos recovers sin: max interior error | 0 (+/-0) | 0 | 0 | 6 % | ![Pass][cv-pass] Pass | | Bendat & Piersol, Random Data 4e Eq. (13.27) | Envelope of an AM waveform recovers 1 + m*cos(2pi*fm*t) exactly | 0 (+/-0) | 0 | 0 | 0 % | ![Pass][cv-pass] Pass |

Cepstrum, liftering and envelope spectrum (Havelock / B&P): 100% (3/3)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | Havelock 2008 Ch. 27 Fig. 21 + Mercator series of ln(1+a*e^{-j*theta}) | Power-cepstrum height at the echo delay = reflection coefficient a | 0.4 (+/-0) | 0.4 | 0 | 0 % | ![Pass][cv-pass] Pass | | Havelock 2008 Ch. 87 Eq. (14): complex cepstrum, series term n = 2 | Second rahmonic of a reflection a = 0.4 equals -a^2/2 | -0.08 (+/-0) | -0.08 | 0 | 0 % | ![Pass][cv-pass] Pass | | Bendat & Piersol, Random Data 4e Sec. 13.3 (Fig. 13.11) | Envelope-spectrum line of an AM tone (A0 = 2, m = 0.35) at fm | 0.7 (+/-0.002) | 0.7 | 0 | 0 % | ![Pass][cv-pass] Pass |

Time synchronous averaging (McFadden 1987): 100% (5/5)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | McFadden 1987 Eq. 8 / Eq. 9: comb filter \|C(f)\| at a harmonic k/T | Comb-filter tooth height at a harmonic equals unity (any N) | 1 (+/-0) | 1 | 0 | 0 % | ![Pass][cv-pass] Pass | | McFadden 1987 Eq. 8: comb filter one quarter-order from a tooth, N = 2 | Comb-filter magnitude = 1/sqrt(2) at order 0.25 | 0.70710678 (+/-0) | 0.70710678 | 0 | 0 % | ![Pass][cv-pass] Pass | | McFadden 1987 Sec. 4 (Fig. 5): node selection, tone at 32.05 orders | N = 20 places a comb node on 32.05 orders (\|C\| = 0), not the power-of-2 N = 32 | 0 (+/-0.0000000001) | 0 | 0 | 0 % | ![Pass][cv-pass] Pass | | McFadden 1987 Eq. 5: exact recovery, integer samples per period | Noiseless periodic waveform (M = 256) recovered to machine precision | 0 (+/-0.0000000001) | 0 | 0 | 0 % | ![Pass][cv-pass] Pass | | McFadden 1987 Sec. 1: asynchronous-noise variance reduced by 1/N | Residual noise std of the average falls as sigma/sqrt(N), N = 64 | 0.125 (+/-15%) | 0.12414 | -0.00086 | 5 % | ![Pass][cv-pass] Pass |

Data qualification and Rice statistics (Bendat & Piersol): 100% (8/8)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | Bendat & Piersol, Random Data 4e Example 4.4 | Reverse arrangements of the 20-observation sequence | 86 (+/-0) | 86 | 0 | 0 % | ![Pass][cv-pass] Pass | | Bendat & Piersol, Random Data 4e Table A.6 | Lower percentage point A(20; 0.975) at alpha = 0.05 | 64 (+/-0) | 64 | 0 | 0 % | ![Pass][cv-pass] Pass | | Bendat & Piersol, Random Data 4e Table A.6 | Upper percentage point A(20; 0.025) at alpha = 0.05 | 125 (+/-0) | 125 | 0 | 0 % | ![Pass][cv-pass] Pass | | Wald & Wolfowitz 1940 exact run distribution | Runs acceptance region for n1 = n2 = 10, alpha = 0.05: lower point | 6 (+/-0) | 6 | 0 | 0 % | ![Pass][cv-pass] Pass | | Wald & Wolfowitz 1940 exact run distribution | Runs acceptance region for n1 = n2 = 10, alpha = 0.05: upper point | 15 (+/-0) | 15 | 0 | 0 % | ![Pass][cv-pass] Pass | | Bendat & Piersol, Random Data 4e Example 5.13 / Eq. (5.195) | Zero-crossing rate of bandlimited noise (fc = 1 kHz, B = 400 Hz) | 2013 (+/-1%) | 2013 | -0.551 | 3 % | ![Pass][cv-pass] Pass | | Bendat & Piersol, Random Data 4e Example 5.12 | Apparent frequency of low-pass noise (B = 2 kHz) = 0.577 B | 1155 (+/-1%) | 1159 | 3.911 | 34 % | ![Pass][cv-pass] Pass | | Bendat & Piersol, Random Data 4e Example 5.14 / Eq. (5.206) | Prob[positive peak > 4 sigma] of a narrow bandwidth record | 0.000335 (+/-0.00001) | 0.000334 | -0.000001 | 10 % | ![Pass][cv-pass] Pass |

Underwater acoustics (ISO 18405/17208/18406): 100% (6/6)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ISO 18405:2017 / ISO 18406 Formula 7 | Sound pressure level of a synthetic tone, dB re 1 µPa | 123.0103 (+/-0.0001) | 123.0103 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 18405:2017 / ISO 18406 Formulae 3-4 | Sound exposure level of a 2 s tone, dB re 1 µPa²·s | 120 (+/-0.001) | 120 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 18406:2017 (6.4.2.1.3) | Peak sound pressure level of a known waveform, dB re 1 µPa | 129.5424 (+/-0.0001) | 129.5424 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 17208-1:2016 | Radiated noise level from RMS pressure and distance, dB re 1 µPa·m | 46.0206 (+/-0.0001) | 46.0206 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 17208-2:2019 (Formula 3) | Lloyd's-mirror surface correction ΔL at a known k·d_s | -3.5211 (+/-0.0001) | -3.5211 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 18406:2017 (Formulae 8-9) | Cumulative SEL of N identical strikes = SEL_ss + 10·lg(N) | 196.9897 (+/-0) | 196.9897 | 0 | 0 % | ![Pass][cv-pass] Pass |

Underwater sound propagation (propagation loss): 100% (16/16)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | Mackenzie (1981) nine-term equation | Speed of sound at 25 °C, 35 ‰, 1000 m (canonical check value), m/s | 1550.744 m/s (+/-0.01 m/s) | 1550.744 m/s | 0 m/s | 0 % | ![Pass][cv-pass] Pass | | UNESCO/Chen-Millero vs Mackenzie | Sound-speed agreement at 10 °C, 35 ‰, 1000 m (cross-model), m/s | 1506.264 m/s (+/-1 m/s) | 1506.524 m/s | 0.261 m/s | 26 % | ![Pass][cv-pass] Pass | | Del Grosso (1974) vs Mackenzie | Sound-speed agreement at 10 °C, 35 ‰, 1000 m (cross-model), m/s | 1506.264 m/s (+/-1 m/s) | 1506.313 m/s | 0.049 m/s | 5 % | ![Pass][cv-pass] Pass | | Spherical spreading 20·lg(R) | Geometrical spreading loss at R = 1000 m, dB | 60 dB (+/-0 dB) | 60 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | Thorp (1967) absorption | Volume absorption α at 10 kHz (cold deep water), dB/km | 1.1498 dB/km (+/-0 dB/km) | 1.1498 dB/km | 0 dB/km | 0 % | ![Pass][cv-pass] Pass | | Ainslie-McColm (1998) vs Francois-Garrison (1982) | Absorption agreement at 10 kHz, 10 °C, 35 ‰, 0 m, pH 8, dB/km | 0.9626 dB/km (+/-0.0963 dB/km) | 0.9866 dB/km | 0.0239 dB/km | 25 % | ![Pass][cv-pass] Pass | | Francois-Garrison (1982) Part II Table IV | Absorption α at 100 kHz, 10 °C, 35 ‰, 0 m, pH 8 (printed value), dB/km | 33.6 dB/km (+/-0.05 dB/km) | 33.63 dB/km | 0.03 dB/km | 60 % | ![Pass][cv-pass] Pass | | Del Grosso refit (Wong-Zhu 1995 Table IV) | c(t90 = 20 °C, S = 35, P = 500 bar) vs the printed check table, m/s | 1603.679 m/s (+/-0.001 m/s) | 1603.679 m/s | 0 m/s | 44 % | ![Pass][cv-pass] Pass | | Wales-Heitmeyer (2002) ensemble spectrum | Merchant-ship source PSD at 100 Hz (printed equation), dB re 1 µPa²/Hz | 158.45 dB (+/-0.001 dB) | 158.45 dB | 0 dB | 1 % | ![Pass][cv-pass] Pass | | Passive sonar equation (Urick/Etter) | Figure of merit SL − (NL − DI) − DT, dB | 85 dB (+/-0 dB) | 85 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | Seabed reflection (Rayleigh, normal incidence) | Bottom loss at 90° grazing, sand ρ=1900 c=1650 over water, dB | 9.0506 dB (+/-0 dB) | 9.0506 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | Wenz wind noise (rule of fives) | Wind spectrum level at 1 kHz, 5 kn (canonical anchor), dB re 1 µPa²/Hz | 51.0206 dB (+/-0.0001 dB) | 51.0206 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | Mellen thermal noise | Thermal spectrum level at 50 kHz, 16.85 °C (physical), dB re 1 µPa²/Hz | 19.3426 dB (+/-0 dB) | 19.3426 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | JOMOPANS-ECHO ship source level | Bulker V=13.5 kn L=211 m band level at 1 kHz (File S1 oracle), dB re 1 µPa m | 161.394 dB (+/-0.01 dB) | 161.394 dB | 0 dB | 3 % | ![Pass][cv-pass] Pass | | UNESCO sound speed (EOS-80 canonical value) | SVEL(S = 40, T68 = 40 °C, P = 1000 bar) vs Fofonoff & Millard 1983, m/s | 1731.995 m/s (+/-0.02 m/s) | 1732.004 m/s | 0.009 m/s | 45 % | ![Pass][cv-pass] Pass | | Medwin (1975) sound speed (Ainslie Eqs. 1.2-1.4) | ∂c/∂T at 10 °C, neglecting the bracketed terms, m/s per °C | 3.5 m/s per °C (+/-0.001 m/s per °C) | 3.5 m/s per °C | 0 m/s per °C | 0 % | ![Pass][cv-pass] Pass |

Underwater propagation regimes (Weston flux theory): 100% (3/3)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | Ainslie (2010) Table 9.1, medium sand | Reflection loss gradient η from Equation (9.51), Np/rad | 0.28 Np/rad (+/-0.005 Np/rad) | 0.278 Np/rad | -0.002 Np/rad | 40 % | ![Pass][cv-pass] Pass | | Ainslie (2010) Table 9.1, mud | Reflection loss gradient η from Equation (9.53) at 1 Hz, Np/rad | 0.021 Np/rad (+/-0.0005 Np/rad) | 0.02073 Np/rad | -0.00027 Np/rad | 54 % | ![Pass][cv-pass] Pass | | Weston cylindrical spreading vs normal modes | Range-averaged PL in an ideal 100 m waveguide at 100 Hz, 20-30 km, dB | 58.949 dB (+/-1 dB) | 58.399 dB | -0.55 dB | 55 % | ![Pass][cv-pass] Pass |

Marine-mammal auditory weighting (NMFS / Southall): 100% (4/4)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | NMFS (2018) Appendix D worked example | Weighting factor adjustment W(1 kHz) for high-frequency cetaceans, dB | -37.55 dB (+/-0.01 dB) | -37.545 dB | 0.005 dB | 50 % | ![Pass][cv-pass] Pass | | NMFS (2024) v3.0 Table 5, otariid C | C recomputed as the peak of W(f) for the OW row (printed 1.37, corrected 1.36), dB | 1.3643 dB (+/-0.0005 dB) | 1.3643 dB | 0 dB | 2 % | ![Pass][cv-pass] Pass | | Ainslie (2010) Equation (11.159), orca audiogram | Hearing threshold at 50 kHz (third branch), dB re 1 µPa | 51.2 dB (+/-0.05 dB) | 51.199 dB | -0.001 dB | 2 % | ![Pass][cv-pass] Pass | | Ainslie (2010) §11.4.6, orca versus salmon | Noise-limited figure of merit (SL + TS − NL + AG − DT)/2, dB re m² | 51 dB (+/-0 dB) | 51 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass |

Underwater numerical propagation (modes / rays / PE): 100% (5/5)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | Normal modes vs ideal waveguide | Fundamental horizontal wavenumber kr1 at 20 Hz, 100 m (analytic), rad/m | 0.077662 rad/m (+/-0.0001 rad/m) | 0.077662 rad/m | 0 rad/m | 0 % | ![Pass][cv-pass] Pass | | Normal modes vs image-source oracle | Absolute PL at 1 km in the ideal waveguide (converged image sum), dB | 48.238 dB (+/-0.02 dB) | 48.239 dB | 0.001 dB | 5 % | ![Pass][cv-pass] Pass | | Ray tracing vs linear gradient | Turning depth of a 10° ray, c = 1500 + 0.05z (circular arc), m | 462.8 m (+/-1 m) | 462.8 m | 0 m | 0 % | ![Pass][cv-pass] Pass | | Ray travel time vs iso-gradient closed form | Travel time of a 10° ray at 10 km, c = 1500 + 0.05z (Medwin & Clay Eq. 3.3.20), s | 6.625942 s (+/-0.000001 s) | 6.625942 s | 0 s | 0 % | ![Pass][cv-pass] Pass | | Parabolic equation vs free field | PE propagation loss at 2 km, homogeneous medium (spherical spreading), dB | 66.021 dB (+/-0.1 dB) | 66.021 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass |

Sonar processing gain and detection (Ainslie 2010): 100% (4/4)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | Ainslie (2010) Sect. 6.1.2.1, printed folio 267 | Line-array DI at broadside, high-frequency limit 10 log10(2L/lambda), dB | 23.01 dB (+/-0.01 dB) | 23.015 dB | 0.004 dB | 40 % | ![Pass][cv-pass] Pass | | Ainslie (2010) Sect. 6.1.2.1, printed folio 267 | Line-array DI at endfire, where the footprint halves: 10 log10(4L/lambda), dB | 26.021 dB (+/-0.01 dB) | 26.023 dB | 0.002 dB | 20 % | ![Pass][cv-pass] Pass | | Ainslie (2010) Eq. (11.20), Fig. 11.1 | Unsteered DI vs the book's own approximation 1 + G0 tanh(pi^2 G0/36) at 2L/lambda = 20 | 13.22 dB (+/-0.5 dB) | 13.05 dB | -0.168 dB | 34 % | ![Pass][cv-pass] Pass | | Ainslie (2010) Eq. (11.22), printed folio 581 | Detection threshold at 50 % detection probability, p_fa = 1e-4, dB | 10.0947 dB (+/-0 dB) | 10.0947 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass |

Aircraft noise (ICAO Annex 16 / IEC 61265): 100% (28/28)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ECAC Doc 29 noise fraction (half path) | Finite-segment correction ΔF for a perpendicular foot at the segment start, dB | -3.0103 dB (+/-0.001 dB) | -3.0103 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ECAC Doc 29 single-event chain | SEL of a long level flyover vs the infinite-path limit LE∞ + ΔI − Λ, dB | 83.444 dB (+/-0.01 dB) | 83.444 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ECAC Doc 29 impedance adjustment (standard atmosphere) | Acoustic-impedance adjustment of NPD data at 15 °C / 101.325 kPa (Eq. 4-6/4-7), dB | 0.074 dB (+/-0.0005 dB) | 0.0741 dB | 0.0001 dB | 20 % | ![Pass][cv-pass] Pass | | ECAC Doc 29 reference workbook (segment Λ) | Lateral attenuation of a climbing segment vs the ECAC Vol 3 Part 1 workbook, dB | 6.3769 dB (+/-0.01 dB) | 6.3769 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ECAC Doc 29 start-of-roll directivity (jet) | ΔSOR behind a takeoff ground-roll segment vs the Vol 3 Part 1 workbook, dB | 0.3196 dB (+/-0.01 dB) | 0.3196 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ECAC Doc 29 start-of-roll directivity (turboprop) | ΔSOR behind a takeoff ground-roll segment (turboprop, Eq. 4-24b), dB | 1.0943 dB (+/-0.01 dB) | 1.0944 dB | 0.0001 dB | 1 % | ![Pass][cv-pass] Pass | | ECAC Doc 29 workbook event assembly (JETFDS/R03, behind SOR) | Energy sum of the reference per-segment SELs vs the B-1 event total, dB | 74.73 dB (+/-0.01 dB) | 74.733 dB | 0.003 dB | 30 % | ![Pass][cv-pass] Pass | | SAE ARP 5534 low branch at the split (Eq. 7) | SAE-Method δ_B just below δ_t = 150 dB vs the printed Eq. 8 value there, dB | 123.95 dB (+/-0.01 dB) | 123.953 dB | 0.003 dB | 30 % | ![Pass][cv-pass] Pass | | SAE ARP 5534 high branch at the split (Eq. 8) | SAE-Method δ_B just above δ_t = 150 dB vs the printed Eq. 7 value there, dB | 123.953 dB (+/-0.01 dB) | 123.95 dB | -0.003 dB | 30 % | ![Pass][cv-pass] Pass | | EASA ANP database round-trip | Interpolated NPD level at a tabulated node vs the published ANP value, dB | 98.8 dB (+/-0 dB) | 98.8 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ECAC Doc 29 NPD interpolation | Log-linear NPD level at the log-midpoint distance (Eq. 4-4), dB | 97 dB (+/-0 dB) | 97 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | SAE ARP 5534 pure-tone coefficient (Eqs. 1-6) | Mid-band α at 1 kHz, 25 °C, 70 % RH, 101.325 kPa, dB/m | 0.006187 dB/m (+/-0 dB/m) | 0.006187 dB/m | 0 dB/m | 0 % | ![Pass][cv-pass] Pass | | ICAO Annex 16 Vol. I App. 2 Table A2-3 | Perceived noisiness at SPL(b), 1 kHz band, in noys | 1 (+/-0) | 1 | 0 | 0 % | ![Pass][cv-pass] Pass | | ICAO Doc 9501 ETM Vol. I Table 3-7 | Tone correction of the turbofan example, dB | 2 (+/-0) | 2 | 0 | 0 % | ![Pass][cv-pass] Pass | | ICAO Doc 9501 ETM Vol. I Table 4-4 | Integrated-method reference EPNL, EPNdB | 92.619 EPNdB (+/-0.01 EPNdB) | 92.619 EPNdB | 0 EPNdB | 0 % | ![Pass][cv-pass] Pass | | IEC 61265:1995 Table 1 | Directional-response tolerance at 4 kHz / 90°, dB | 2 dB (+/-0 dB) | 2 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ECAC Doc 29 Appendix B take-off ground roll | Equivalent take-off distance of reference case 6 (Eq. B-15/B-16), ft | 4897.5 ft (+/-0.1 ft) | 4897.5 ft | 0.036 ft | 72 % | ![Pass][cv-pass] Pass | | ECAC Doc 29 Appendix B approach thrust | Corrected net thrust at the top of reference case 2A (Eq. B-40/B-48), lb | 533.1 lb (+/-0.1 lb) | 533.1 lb | 0.035 lb | 70 % | ![Pass][cv-pass] Pass | | ECAC Doc 29 Appendix D Table D-2 | Spectral classes 103 and 205 corrected back to the source (Eq. D-1), cells | 48/48 cells of Table D-2 at source | 48/48 cells of Table D-2 at source | exact | 0 % | ![Pass][cv-pass] Pass | | ECAC Doc 29 Appendix D Table D-3a | SAE AIR-1845 attenuation of Table D-1 over the ten NPD distances, cells | 240/240 cells of Table D-3a | 240/240 cells of Table D-3a | exact | 0 % | ![Pass][cv-pass] Pass | | ECAC Doc 29 Appendix D Table D-3b | SAE ARP 866A attenuation at 10 °C, 80 % over the NPD distances, cells | 240/240 cells of Table D-3b within half a unit of the last digit plus 7 ppm | 240/240 cells of Table D-3b | exact | 0 % | ![Pass][cv-pass] Pass | | ECAC Doc 29 Appendix D Table D-3c | SAE ARP 5534 attenuation at 10 °C, 80 %, 101.325 kPa over the NPD distances, cells | 240/240 cells of Table D-3c | 240/240 cells of Table D-3c | exact | 0 % | ![Pass][cv-pass] Pass | | ECAC Doc 29 Appendix D Table D-4 | A-weighted levels and increment ΔL with SAE ARP 5534 (Eq. D-4), cells | 60/60 cells of Table D-4 | 60/60 cells of Table D-4 | exact | 0 % | ![Pass][cv-pass] Pass | | ECAC Doc 29 Appendix D Table D-5 | A-weighted levels and increment ΔL with SAE ARP 866A (Eq. D-4), cells | 60/60 cells of Table D-5 | 60/60 cells of Table D-5 | exact | 0 % | ![Pass][cv-pass] Pass | | ECAC Doc 29 Appendix D Table D-6b | JETW SEL NPD data revised end to end with SAE ARP 5534, cells | 70/70 cells of Table D-6b | 70/70 cells of Table D-6b | exact | 0 % | ![Pass][cv-pass] Pass | | ECAC Doc 29 Appendix D Table D-6c | JETW SEL NPD data revised end to end with SAE ARP 866A, cells | 60/60 cells of Table D-6c outside its misprinted last row | 60/60 cells of Table D-6c | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 3891:1978 Annex C | Tone correction worked example: background and excess F in 22 bands, fields | 44/44 printed background and excess values | 44/44 printed background and excess values | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 3891:1978 Annex A Table 10 | SAE ARP 866A coefficient at 80 % from -10 °C to 40 °C, 50 Hz to 10 kHz, cells | 264/264 cells of Table 10 | 264/264 cells of Table 10 | exact | 0 % | ![Pass][cv-pass] Pass |

Rotorcraft noise (ECAC Doc 32 / NORAH2): 100% (14/14)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ECAC Doc 32 atmospheric attenuation (Table 4) | ΔLa over a 1 km excess path at 1 kHz vs the NORAH2 guidance Table 4, dB | 6.3 dB (+/-0.2 dB) | 6.186 dB | -0.114 dB | 57 % | ![Pass][cv-pass] Pass | | ECAC Doc 32 spherical spreading | ΔLs at ten times the 60 m hemisphere reference distance (Eq. 24), dB | -20 dB (+/-0 dB) | -20 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ECAC Doc 32 ground effect (rigid limit) | ΔLg over a rigid surface at grazing incidence tends to +6 dB (Eq. 29), dB | 6 dB (+/-1 dB) | 6 dB | 0.002 dB | 0 % | ![Pass][cv-pass] Pass | | ECAC Doc 32 propagation chain (NORAH2 prototype) | LA of a single-hemisphere emission vs the NORAH2 prototype single-event history (R22 approach, 223.66 m slant), dB(A) | 55.87 dBA (+/-0.1 dBA) | 55.886 dBA | 0.016 dBA | 16 % | ![Pass][cv-pass] Pass | | NORAH2 guidance §A.3.5 ring derivation (constant φ) | Hemisphere rim bin (φ, θ) = (+90°, 150°) vs the ring level at +150°, dB | 75 dB (+/-0 dB) | 75 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | NORAH2 guidance §A.3.5 Table 3 (Approach 3 HOGE offset) | Out-of-ground-hover minus in-ground-hover level of a derived bin, dB | 12 dB (+/-0 dB) | 12 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ECAC Doc 32 flight-condition interpolation (NORAH2 Eq. 8) | Distance-scaled triangle blend of three uniform hemispheres, hand-checked, dB | 97.0367 dB (+/-0.001 dB) | 97.0364 dB | -0.0003 dB | 30 % | ![Pass][cv-pass] Pass | | ECAC Doc 32 flight-path kinematics (Eq. 17) | Airspeed of a straight climbing track, 40 m/s ground speed at a 5° path angle, m/s | 40.15279 m/s (+/-0.0001 m/s) | 40.15279 m/s | 0.00001 m/s | 10 % | ![Pass][cv-pass] Pass | | ECAC Doc 32 retarded time (Eq. 22) | Recorded-time delay at 100 m slant distance, r/c with c = 346.1 m/s, s | 0.288934 s (+/-0.00001 s) | 0.288934 s | 0 s | 2 % | ![Pass][cv-pass] Pass | | ECAC Doc 32 single event (Eq. 27) | SEL − LASmax of a constant-speed level flyover, 10·lg(π·d/V) closed form, dB | 7.982 dB (+/-0.1 dB) | 7.942 dB | -0.04 dB | 40 % | ![Pass][cv-pass] Pass | | NORAH2 guidance mean ground plane (Eq. 36-40) | Intercept of the plane fitted to a symmetric 20 m roofline, hand-checked, m | 10 m (+/-0 m) | 10 m | 0 m | 0 % | ![Pass][cv-pass] Pass | | NORAH2 guidance mean flow resistivity (Eq. 41) | Log-average of equal 1e4 and 1e6 Pa·s/m2 halves, hand-checked, Pa·s/m2 | 100000 Pa·s/m² (+/-0 Pa·s/m²) | 100000 Pa·s/m² | 0 Pa·s/m² | 0 % | ![Pass][cv-pass] Pass | | NORAH2 guidance diffraction at grazing (Eq. 42) | Pure diffraction with the edge on the line of sight, 10·lg 3, dB | 4.7712 dB (+/-0.0001 dB) | 4.7712 dB | 0 dB | 12 % | ![Pass][cv-pass] Pass | | NORAH2 guidance screening path difference (§A.4.5) | Rubber-band delta over a 40 m hill, hand-checked geometry, m | 4.2848 m (+/-0 m) | 4.2848 m | 0 m | 0 % | ![Pass][cv-pass] Pass |

CNOSSOS-EU road source (Directive 2002/49/EC Annex II): 100% (6/6)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | CIRCABC CNOSSOS-EU road emission test set | Line power of the 60 committed cases of the 4 875-case published test set, 8 octave bands each, dB re 1 pW/m | <= 0.01 dB on 480 published band levels (60 cases) | 0.005 dB | 0.005 dB | 50 % | ![Pass][cv-pass] Pass | | Directive (EU) 2021/1226 Annex pt (19)(a), Table F-1 | Rolling and propulsion coefficients, 5 categories x 4 rows x 8 bands | 160 coefficients identical | 160/160 coefficients | exact | 0 % | ![Pass][cv-pass] Pass | | Directive (EU) 2021/1226 Annex pt (19)(b), Table F-4 | Road-surface coefficients, 15 surfaces x 5 categories x (8 alpha + beta) | 675 stored coefficients identical | 675/675 stored coefficients | exact | 0 % | ![Pass][cv-pass] Pass | | Directive (EU) 2015/996 Appendix F, Tables F-2 and F-3 | Studded-tyre and junction coefficients, unchanged since 2015 | 36 coefficients identical | 36/36 coefficients | exact | 0 % | ![Pass][cv-pass] Pass | | Directive (EU) 2015/996 Annex II 2.2.4 / 2.2.11 | Sound power at v_ref = 70 km/h under reference conditions, dB re 1 pW | exactly A_R,i,m and A_P,i,m | 0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | Directive (EU) 2021/1226 Annex pt (8)(b) | Octave-band A-weighting AWC_f,i prescribed by 2.5.5, dB | 8 values identical | 8/8 values | exact | 0 % | ![Pass][cv-pass] Pass |

Wind-turbine noise (IEC 61400-11): 100% (3/3)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | IEC 61400-11:2012 Formula 30 | Critical bandwidth about a 500 Hz tone, Hz | 117.255 Hz (+/-0 Hz) | 117.255 Hz | 0 Hz | 0 % | ![Pass][cv-pass] Pass | | IEC 61400-11:2012 Formula 26 | Apparent sound power level of a single band, dB re 1 pW | 148.5139 dB (+/-0.0001 dB) | 148.5139 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | IEC 61400-11:2012 Formulae 31-34 | Tonal audibility of a synthetic clean tone, dB | 16.38 dB (+/-0.06 dB) | 16.38 dB | -0.001 dB | 2 % | ![Pass][cv-pass] Pass |

Road-surface influence on traffic noise (ISO 11819-1): 100% (7/7)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ISO 11819-1:1997 Table 1 | Reference speeds and weighting factors, 3 road speed categories x 3 vehicle categories x 2 | 18/18 printed cells | 18/18 printed cells | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 11819-1:1997 Table 2 | Expected random errors: standard deviation of individual vehicles and 95 % confidence interval around L_veh, 3 vehicle categories, dB | s 1 = 1.5 dB; s 2a = 2 dB; s 2b = 2 dB; CI 1 = 0.3 dB; CI 2a = 0.7 dB; CI 2b = 0.7 dB | s 1 = 1.5 dB; s 2a = 2 dB; s 2b = 2 dB; CI 1 = 0.3 dB; CI 2a = 0.7 dB; CI 2b = 0.7 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 11819-1:1997 Annex E, regression data | L_veh of cars, dual-axle and multi-axle heavy vehicles at 80 and 70 km/h, from pass-bys on the printed regression lines, reported to one decimal, dB | 1 = 78.5 dB; 2a = 81.1 dB; 2b = 83.8 dB | 1 = 78.5 dB; 2a = 81.1 dB; 2b = 83.8 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 11819-1:1997 9.2, 9.5 and Annex E | SPBI not corrected for temperature, from pass-bys on the printed regression lines through the L_veh of 9.2 to one decimal, dB | 79.9 dB (+/-0.05 dB) | 79.946 dB | 0.046 dB | 92 % | ![Pass][cv-pass] Pass | | ISO 11819-1:1997 9.5 and Annex E | SPBI corrected for temperature, from the corrected L_veh Annex E prints, dB | 80.1 dB (+/-0.05 dB) | 80.121 dB | 0.021 dB | 42 % | ![Pass][cv-pass] Pass | | ISO 11819-1:1997 clause 10 and Annex E | Difference of the temperature-corrected SPBI from the 77,3 dB of the reference surface, dB | 2.8 dB (+/-0.05 dB) | 2.821 dB | 0.021 dB | 42 % | ![Pass][cv-pass] Pass | | ISO 11819-1:1997 10.2 and Annex D | L_veh of the normalized reference surface for the medium speed range, the average of the seven surfaces printed, to one decimal, dB | 1 = 76.4 dB; 2a = 81 dB; 2b = 84 dB | 1 = 76.4 dB; 2a = 81 dB; 2b = 84 dB | exact | 0 % | ![Pass][cv-pass] Pass |

Wind turbine sound at a receptor (IEC TS 61400-11-2): 100% (23/23)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | IEC TS 61400-11-2:2024 Table K.1 | Wind speed at 10 m from 120 m, every cell | 156/156 cells of Table K.1 | 156/156 cells of Table K.1 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC TS 61400-11-2:2024 Table K.2 | Shear exponent from 10 m and 120 m, every cell and every blank | 195/195 cells of Table K.2, the blanks outside -0.1 to 0.5 | 195/195 cells of Table K.2, the blanks outside -0.1 to 0.5 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC TS 61400-11-2:2024 Table K.3 | Roughness length of four terrains, m | Water, snow or sand surfaces = 0.0001 m; Open, flat land, mown grass, bare soil = 0.01 m; Farmland with some vegetation = 0.05 m; Suburbs, towns, forests, many trees and bushes = 0.3 m | Water, snow or sand surfaces = 0.0001 m; Open, flat land, mown grass, bare soil = 0.01 m; Farmland with some vegetation = 0.05 m; Suburbs, towns, forests, many trees and bushes = 0.3 m | exact | 0 % | ![Pass][cv-pass] Pass | | IEC TS 61400-11-2:2024 9.3.2.1 with IEC 61400-11:2012 Equation (29) | Hub-height wind speed brought back to 10 m over z0ref = 0.05 m, m/s | 6 m/s (+/-0.000001 m/s) | 6 m/s | 0 m/s | 0 % | ![Pass][cv-pass] Pass | | IEC TS 61400-11-2:2024 Equations (1) to (5) | Combined uncertainty of an energy-averaged bin of three intervals, dB | 0.709168 dB (+/-0.000001 dB) | 0.709168 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | IEC TS 61400-11-2:2024 Equations (6) and (7) | Turbine level and its uncertainty 5 dB over the background, dB | 0 dB (+/-0.000001 dB) | worst deviation 0.00e+00 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | IEC TS 61400-11-2:2024 11.7 | Turbine level of a total 2 dB over the background: the suggested 3 dB correction, dB | 39 dB (+/-0.000001 dB) | 39 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | IEC TS 61400-11-2:2024 Table 3 | Type B uncertainty examples: typical range and standard uncertainty, dB | 4/4 components of Table 3 | 4/4 components of Table 3 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC TS 61400-11-2:2024 Equations (10) and (11) | Combined uncertainty of a prediction over three turbines, dB | 2.418549 dB (+/-0.000001 dB) | 2.418549 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | IEC TS 61400-11-2:2024 9.3.2.3 | Sound relevant turbines of six at 35, 33, 32, 25, 20 and 18 dB | the three loudest (the other three drop the total by 0.3 dB) | 1, 2, 3 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC TS 61400-11-2:2024 Table C.1 | Impedance classes A to H: flow resistivity, Nordtest classes and ground | 8/8 classes of Table C.1 | 8/8 classes of Table C.1 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC TS 61400-11-2:2024 Tables C.2, C.3 and C.5 | Ground correction, air attenuation, facade insulation and the Swedish curve | 65/65 cells of Tables C.2, C.3 and C.5 | 65/65 cells of Tables C.2, C.3 and C.5 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC TS 61400-11-2:2024 Table C.2 with ISO 9613-1 | Air attenuation at 125 Hz to 200 Hz: ISO 9613-1 at 10 degrees C and 70 % at the nominal band centres | 3/3 cells of Table C.2 to 0.01 dB/km | 3/3 cells of Table C.2 to 0.01 dB/km | exact | 0 % | ![Pass][cv-pass] Pass | | IEC TS 61400-11-2:2024 Table C.2 with ISO 9613-1 and BEK nr. 135:2019 Table 1.4 | Air attenuation at 50 Hz to 100 Hz under ISO 9613-1 at 70 %, dB/km | 0.01, 0.01, 0.02, 0.02 dB/km: the cells are the Danish order's, at 80 % | 50 Hz = 0.01 dB/km; 63 Hz = 0.01 dB/km; 80 Hz = 0.02 dB/km; 100 Hz = 0.02 dB/km | exact | 0 % | ![Pass][cv-pass] Pass | | IEC TS 61400-11-2:2024 Table C.2 with BEK nr. 135:2019 Table 1.4 | Air attenuation at 25 Hz to 100 Hz within 0.01 dB/km of ISO 9613-1 at 80 % | 7/7 cells of Table C.2, the Danish order's cells | 7/7 cells of Table C.2, the Danish order's cells | exact | 0 % | ![Pass][cv-pass] Pass | | IEC TS 61400-11-2:2024 Table C.4 | A-weighting row, 10 Hz to 200 Hz, against IEC 61672-1:2013 Table 3 | 14/14 bands of Table C.4 | 14/14 bands of Table C.4 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC TS 61400-11-2:2024 Equation (C.1) | Indoor A-weighted 63 Hz level of 95 dB at 500 m from a 100 m hub, dB | -8.705823 dB (+/-0.000001 dB) | -8.705823 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | IEC TS 61400-11-2:2024 Equation (J.1) | Emergence of a 44.5 dB ambient over 41 dB, dB | 3.5 dB (+/-0.000001 dB) | 3.5 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | IEC TS 61400-11-2:2024 Figure A.1 | Amplitude modulation adjustment at the grid points the curve meets | 6/6 points of Figure A.1 | 6/6 points of Figure A.1 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC TS 61400-11-2:2024 Table A.1 and A.2 | Tonal adjustment at each limit of the mean audibility, both step sizes | 10/10 limits of Table A.1 and A.2 | 10/10 limits of Table A.1 and A.2 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC TS 61400-11-2:2024 A.1 | Rating level with the most severe adjustment alone, dB | 44 dB (+/-0.000001 dB) | 44 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | IEC TS 61400-11-2:2024 Table 7 | Upper tone search frequency, the four rows printed at their own atmosphere | 16/16 cells of Table 7 | 16/16 cells of Table 7 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC TS 61400-11-2:2024 Table 7, fourth row | The row printed at 10 degrees C and 80 %, reproduced at -10 degrees C | 4/4 cells of the fourth row at -10 degrees C | 4/4 cells of the fourth row at -10 degrees C | exact | 0 % | ![Pass][cv-pass] Pass |

Wind turbine amplitude modulation (IEC TS 61400-11-2 clause 13): 100% (9/9)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | IOA AMWG reference code v1.4, sample Sample-50_200Hz | Prominence, fundamental modulation frequency and 10 s AM of band 1 | 40.43, 0.70 Hz, 5.36 dB | 40.43, 0.70 Hz, 5.36 dB | exact | 0 % | ![Pass][cv-pass] Pass | | IOA AMWG reference code v1.4, sample Sample-100_400Hz | Prominence, fundamental modulation frequency and 10 s AM of band 2 | 44.64, 0.70 Hz, 8.38 dB | 44.64, 0.70 Hz, 8.38 dB | exact | 0 % | ![Pass][cv-pass] Pass | | IOA AMWG reference code v1.4, sample Sample-200_800Hz | Prominence, fundamental modulation frequency and 10 s AM of band 3 | 52.31, 0.70 Hz, 7.66 dB | 52.31, 0.70 Hz, 7.66 dB | exact | 0 % | ![Pass][cv-pass] Pass | | IOA AMWG sample band filtering workbook | A-weighted sums of seven one-third-octave bands, rounded to 0.1 dB | 303/303 sums of the three bands, one per 100 ms sample | 303/303 sums of the three bands, one per 100 ms sample | exact | 0 % | ![Pass][cv-pass] Pass | | IOA AMWG reference code v1.4, synthetic 10 s blocks | Status, prominence, fundamental and depth of nine designed blocks | 9/9 blocks | 9/9 blocks | exact | 0 % | ![Pass][cv-pass] Pass | | IOA AMWG reference code v1.4, 10 min rating | 90th percentile of 36 valid 10 s blocks, dB | 10.43974 dB (+/-0.000001 dB) | 10.43974 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | IOA AMWG reference code v1.4 with IEC TS 61400-11-2:2024 13.6.2.2 | A period of exactly 30 valid blocks is rated, dB | 9.364678 dB (+/-0.000001 dB) | 9.364678 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | IEC TS 61400-11-2:2024 13.6.3 (the IOA code discards the period) | A period of 29 valid blocks is rated 0 dB and kept, dB | 29 valid blocks, rated 0 dB (the AMWG report discards it) | 29 valid blocks, rated 0 dB | exact | 0 % | ![Pass][cv-pass] Pass | | IOA AMWG reference code v1.4 with IEC TS 61400-11-2:2024 13.6.3 | Mean and mode fundamental of a rated period, 20 of 36 valid blocks at 0.7 Hz | mean 0.7778 Hz, mode 0.70 Hz | mean 0.7778 Hz, mode 0.70 Hz | 0 Hz | 0 % | ![Pass][cv-pass] Pass |

Porous & multilayer absorbers (Mechel / Bies / Cox & D'Antonio): 100% (20/20)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | Bies 5e App. D Table D.1 / Mechel 2e G.11 (2) | Delany-Bazley normalised Zc at X = 0.1, real part | 1.3241 (+/-0) | 1.3241 | 0 | 0 % | ![Pass][cv-pass] Pass | | Bies 5e App. D Table D.1 / Mechel 2e G.11 (2) | Delany-Bazley normalised Zc at X = 0.1, imaginary part | -0.4694 (+/-0) | -0.4694 | 0 | 0 % | ![Pass][cv-pass] Pass | | Miki 1990 Eqs. (30)-(34) | Miki normalised wavenumber at f/sigma = 0.1, real part | 1.4523 (+/-0) | 1.4523 | 0 | 0 % | ![Pass][cv-pass] Pass | | Johnson et al. 1987 / Cox & D'Antonio 3e Eq. (6.19) | JCA static viscous limit j w rho_e -> sigma, Pa s/m2 | 20000 Pa·s/m² (+/-0.01%) | 20000 Pa·s/m² | 0 Pa·s/m² | 0 % | ![Pass][cv-pass] Pass | | Mechel 2e Sect. D.3 Eq. (1) | Hard-backed layer: TMM vs -j Zc cot(kd), max rel deviation | 0 (+/-0) | 0 | 0 | 0 % | ![Pass][cv-pass] Pass | | Lossless-layer limit (Mechel 2e Sect. D.3-D.4) | Air cavity over a rigid wall at lambda/4: alpha | 0 (+/-0) | 0 | 0 | 0 % | ![Pass][cv-pass] Pass | | Mechel 2e Sect. D.5 | Maximum statistical absorption of a locally reacting plane | 0.951 (+/-0.001) | 0.951 | 0 | 22 % | ![Pass][cv-pass] Pass | | Cox & D'Antonio 3e Eq. (7.9) | Membrane resonance 60/sqrt(m d), m = 5 kg/m2, d = 5 cm, Hz | 120 Hz (+/-2%) | 119.85 Hz | -0.15 Hz | 6 % | ![Pass][cv-pass] Pass | | Maa 1998 Fig. 5 / Cox & D'Antonio 3e Fig. 7.28 | Microperforated panel (d=t=0.2 mm, b=2.5 mm, D=6 cm): peak alpha | 0.95 (+/-0.05) | 0.956 | 0.006 | 12 % | ![Pass][cv-pass] Pass | | Maa 1998 Eqs. (5a)/(10) | MPP peak absorption vs 4r/(1+r)^2 with Maa's printed resistance | 4r/(1+r)^2 = 0.949 | 0.956 | 0.007 | 35 % | ![Pass][cv-pass] Pass | | Allard & Atalla 2e Sect. 11.3.4 (Eq. 6.90), Table 6.1 glass wool | Zwikker-Kosten decoupling frequency Fd, Hz | 43.27 Hz (+/-0.005 Hz) | 43.271 Hz | 0.001 Hz | 20 % | ![Pass][cv-pass] Pass | | Allard & Atalla 2e Eq. (11.55), printed p. 253 (prose limit) | Limp effective density at DC = apparent total density rho_t, kg/m3 | 31.1809 kg/m³ (+/-0.01%) | 31.1809 kg/m³ | 0 kg/m³ | 0 % | ![Pass][cv-pass] Pass | | Allard & Atalla 2e Eq. (11.55), printed p. 253 (prose limit) | Heavy frame recovers the rigid-frame Zc (relative deviation) | 0 (+/-0.00001) | 0 | 0 | 0 % | ![Pass][cv-pass] Pass | | Allard & Atalla 2e printed p. 254 (Doutres et al. 2007) | Limp-frame bulk-modulus limit for air, kPa | 20 kPa (+/-0.3 kPa) | 20.27 kPa | 0.265 kPa | 88 % | ![Pass][cv-pass] Pass | | Allard & Atalla 2e Eq. (6.110), Table 6.1 glass wool | Frame lambda/4 resonance of a 10 cm layer, Hz | 459.9 Hz (+/-0.05 Hz) | 459.93 Hz | 0.033 Hz | 66 % | ![Pass][cv-pass] Pass | | Allard & Atalla 2e Sect. 6.5.4 (Biot model output), pp. 124-125 | Airborne compressional branch changes root at 495 Hz | 495 Hz (+/-1%) | 495.9 Hz | 0.9 Hz | 18 % | ![Pass][cv-pass] Pass | | Allard & Atalla 2e Sect. 6.5.4 (Biot model output), pp. 124-125 | Frame-borne velocity ratio Re(mu_b) at 1500 Hz (see ERRATA) | 0.82 (+/-2%) | 0.811 | -0.009 | 55 % | ![Pass][cv-pass] Pass | | Allard & Atalla 2e Sect. 6.6.3 (Biot model output), p. 129 | Surface-impedance peak of a 5,6 cm layer, Hz | 860 Hz (+/-2%) | 863.5 Hz | 3.5 Hz | 20 % | ![Pass][cv-pass] Pass | | Allard & Atalla 2e Sect. 11.3.4 (rigid-frame limit) | Stiff, heavy frame recovers the JCA layer (max rel deviation) | 0 (+/-0.0000001) | 0.0000000034 | 0.0000000034 | 3 % | ![Pass][cv-pass] Pass | | Allard & Atalla 2e Eq. (6.107) vs Sect. 11.5 assembly | Two independent derivations of Zs (max rel deviation) | 0 (+/-0.0000000001) | 0 | 0 | 0 % | ![Pass][cv-pass] Pass |

Slow-sound perfect absorbers (Jimenez et al. Appl. Sci. 2017): 100% (3/3)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | Jimenez et al. Appl. Sci. 2017 Eq. (9) | Critical coupling: alpha at the design frequency (300 Hz, normal) | 1 (+/-0.001) | 1 | 0 | 0 % | ![Pass][cv-pass] Pass | | Poiseuille limit (Stinson 1991) | Slit: j w rho_s -> 12 eta / h^2 as w -> 0 (h = 1.2 mm) | 153.3 Pa·s/m² (+/-0.1%) | 153.3 Pa·s/m² | 0 Pa·s/m² | 0 % | ![Pass][cv-pass] Pass | | Poiseuille limit (Stinson 1991) | Square duct: j w rho -> 28.454 eta / w^2 as w -> 0 (w = 3 mm) | 58.2 Pa·s/m² (+/-0.2%) | 58.2 Pa·s/m² | 0 Pa·s/m² | 0 % | ![Pass][cv-pass] Pass |

Program loudness (ITU-R BS.1770 / EBU R 128): 100% (8/8)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ITU-R BS.1770-5 Annex 1 | 997 Hz sine at 0 dB FS on the left channel, LKFS | -3.01 LKFS (+/-0.01 LKFS) | -3.01 LKFS | 0 LKFS | 3 % | ![Pass][cv-pass] Pass | | EBU Tech 3341:2023 Table 1 case 1 | Integrated loudness of the -23 dBFS stereo sine, LUFS | -23 LUFS (+/-0.1 LUFS) | -22.99 LUFS | 0.007 LUFS | 7 % | ![Pass][cv-pass] Pass | | EBU Tech 3341:2023 Table 1 case 5 | Gated integrated loudness of the -26/-20/-26 dBFS steps, LUFS | -23 LUFS (+/-0.1 LUFS) | -22.98 LUFS | 0.021 LUFS | 21 % | ![Pass][cv-pass] Pass | | EBU Tech 3341:2023 Table 1 case 6 | Integrated loudness of the 5.0-channel sine (Table 3 weights), LUFS | -23 LUFS (+/-0.1 LUFS) | -23.02 LUFS | -0.016 LUFS | 16 % | ![Pass][cv-pass] Pass | | EBU Tech 3341:2023 Table 1 case 15 | True-peak level of the fs/4 sine at 0.5 FFS, dBTP | -6 dBTP (+0.2/-0.4 dB) | -6.02 dBTP | headroom 0.215 dBTP | 28 % | ![Pass][cv-pass] Pass | | EBU Tech 3341:2023 Table 1 case 19 | True-peak level of the fs/4 sine at 1.41 FFS, dBTP | 3 dBTP (+0.2/-0.4 dB) | 3 dBTP | headroom 0.199 dBTP | 34 % | ![Pass][cv-pass] Pass | | EBU Tech 3342:2023 Table 1 case 1 | Loudness range of the -20/-30 dBFS tone steps, LU | 10 LU (+/-1 LU) | 10 LU | 0 LU | 0 % | ![Pass][cv-pass] Pass | | EBU Tech 3342:2023 Table 1 case 3 | Loudness range of the -40/-20 dBFS tone steps, LU | 20 LU (+/-1 LU) | 20 LU | 0 LU | 0 % | ![Pass][cv-pass] Pass |

Quasi-peak meter (ITU-R BS.468-4): 100% (12/12)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ITU-R BS.468-4 Table 2 | Single 1 ms 5 kHz burst (5 periods), % of the steady reading | 13.5 to 21.4 % | 16.85 % | +1.928 dB | - | ![Pass][cv-pass] Pass | | ITU-R BS.468-4 Table 2 | Single 2 ms 5 kHz burst (10 periods), % of the steady reading | 22.4 to 31.6 % | 26.72 % | +1.458 dB | - | ![Pass][cv-pass] Pass | | ITU-R BS.468-4 Table 2 | Single 5 ms 5 kHz burst (25 periods), % of the steady reading | 34 to 46 % | 40.29 % | +1.151 dB | - | ![Pass][cv-pass] Pass | | ITU-R BS.468-4 Table 2 | Single 10 ms 5 kHz burst (50 periods), % of the steady reading | 41 to 55 % | 47.73 % | +1.231 dB | - | ![Pass][cv-pass] Pass | | ITU-R BS.468-4 Table 2 | Single 20 ms 5 kHz burst (100 periods), % of the steady reading | 44 to 60 % | 52.58 % | +1.146 dB | - | ![Pass][cv-pass] Pass | | ITU-R BS.468-4 Table 2 | Single 50 ms 5 kHz burst (250 periods), % of the steady reading | 50 to 68 % | 58.78 % | +1.266 dB | - | ![Pass][cv-pass] Pass | | ITU-R BS.468-4 Table 2 | Single 100 ms 5 kHz burst (500 periods), % of the steady reading | 58 to 78 % | 66.98 % | +1.251 dB | - | ![Pass][cv-pass] Pass | | ITU-R BS.468-4 Table 2 | Single 200 ms 5 kHz burst (1000 periods), % of the steady reading | 68 to 92 % | 80.41 % | +1.170 dB | - | ![Pass][cv-pass] Pass | | ITU-R BS.468-4 Table 3 | 5 ms 5 kHz bursts at 2 per second, % of the steady reading | 43 to 53 % | 48.11 % | +0.840 dB | - | ![Pass][cv-pass] Pass | | ITU-R BS.468-4 Table 3 | 5 ms 5 kHz bursts at 10 per second, % of the steady reading | 72 to 82 % | 75.70 % | +0.435 dB | - | ![Pass][cv-pass] Pass | | ITU-R BS.468-4 Table 3 | 5 ms 5 kHz bursts at 100 per second, % of the steady reading | 94 to 100 % | 97.11 % | +0.255 dB | - | ![Pass][cv-pass] Pass | | ITU-R BS.468-4 clause 2.6 | Steady 1 kHz sine at 0.775 V r.m.s., dBqps | 0 dBqps (+/-0.000001 dBqps) | 0 dBqps | 0 dBqps | 0 % | ![Pass][cv-pass] Pass |

Broadcast Wave metadata (EBU Tech 3285 / ITU-R BS.2088): 100% (14/14)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | EBU Tech 3285:2011 (2.3) | bext fixed part: every field at its cumulative offset, 602 bytes | 15 fields byte-identical at offsets 0..422, fixed part 602 B | 15/15 byte-identical, 602 B + CodingHistory | - | - | ![Pass][cv-pass] Pass | | EBU Tech 3285:2011 (2.3) | bext round trip: written metadata returns identically through the reader | 13 fields identical, CodingHistory extended | 13/13 identical, history extended | - | - | ![Pass][cv-pass] Pass | | EBU Tech 3285:2011 (2.4) | Loudness int16 = 100 x value, ties away from zero: negative examples | -22.644 -> F728h (-2264), -22.645 -> F727h (-2265), -22.646 -> F727h (-2265) | F728h (-2264), F727h (-2265), F727h (-2265) | - | - | ![Pass][cv-pass] Pass | | EBU Tech 3285:2011 (2.4) | Loudness int16 = 100 x value, ties away from zero: positive examples | 12.764 -> 04FCh (1276), 12.765 -> 04FDh (1277), 12.766 -> 04FDh (1277) | 04FCh (1276), 04FDh (1277), 04FDh (1277) | - | - | ![Pass][cv-pass] Pass | | EBU Tech 3285:2011 (2.4) | Unused loudness parameters: 7FFFh on disk, None through the reader | 7FFFh x 5 on disk; None x 5 reread | 7FFFh, 7FFFh, 7FFFh, 7FFFh, 7FFFh; None x 5 | - | - | ![Pass][cv-pass] Pass | | EBU Tech 3285:2011 (2.4) | Out-of-range loudness clamps to 7FFEh/8000h, never the 7FFFh sentinel | 327.9 -> 7FFEh (not the sentinel); -inf -> 8000h | 7FFEh; 8000h | - | - | ![Pass][cv-pass] Pass | | EBU Tech 3285:2011 (2.3) | TimeReference: 64-bit first-sample count split low/high at 338/342 | low 370632704 @ 338, high 1 @ 342 (13:30:00 at 96 kHz = 4665600000 samples) | low 370632704, high 1 -> 4665600000 samples, reread equal | - | - | ![Pass][cv-pass] Pass | | EBU Tech 3285:2011 (2.3): CodingHistory row per EBU R 98 Appendix 1 | Appended row is A=PCM,F=48000,W=16,M=stereo,T=... + CR/LF (Example 1) | A=PCM,F=48000,W=16,M=stereo,T=(free text, no commas) + CR/LF | A=PCM,F=48000,W=16,M=stereo,T=(free text) + CR/LF | - | - | ![Pass][cv-pass] Pass | | EBU Tech 3285:2011 (2.3): CodingHistory row per EBU R 98 Appendix 1 | Prior coding row preserved verbatim, new row added beneath it | 2 rows: Example 2's A/D row intact above, the writer's beneath | 2 rows, prior row byte-identical | - | - | ![Pass][cv-pass] Pass | | EBU Tech 3285:2011 (1.1/2.3) | UMID exists from v1 (64 of the 254 reserved bytes): v0 refused, v1 at 348 | v0+UMID refused; v1: Version=0001h, UMID verbatim at 348 | v0 refused; v1: Version=0001h, UMID verbatim | - | - | ![Pass][cv-pass] Pass | | EBU Tech 3285:2011 (1.1/2.3) | Loudness exists from v2 (10 of the 190 reserved bytes): v1 refused/zeroed | v1+loudness refused; v1 writes 10 zero bytes, reads None; v2 carries | v1 refused; bytes zeroed, None reread, v2 carries | - | - | ![Pass][cv-pass] Pass | | ITU-R BS.2088-2 Annex 1 (4.1/4.2) | ds64 first after WAVE: bw64Size/dataSize u64 pairs at 0/8, table at 24 | ds64 first, >= 28 B: riffSize 24883200072, dataSize 24883200000, tableLength 0 | ds64 @ 12, 28 B: riffSize 24883200072, dataSize 24883200000, tableLength 0 | - | - | ![Pass][cv-pass] Pass | | ITU-R BS.2088-2 Annex 1 (3.2/2.4) | Promoted header: FFFFFFFFh sentinel in the outer and data size fields | outer size = data size = FFFFFFFFh, form type WAVE | outer FFFFFFFFh, data FFFFFFFFh, WAVE | - | - | ![Pass][cv-pass] Pass | | ITU-R BS.2088-2 Annex 1 (2.4/3.1) | Reader resolves the data size through ds64; BW64 and RF64 fourccs alike | RF64: 48 frames, BW64: 48 frames (via ds64 dataSize = 96 B) | RF64 read as RF64, 48 frames; BW64 read as BW64, 48 frames | - | - | ![Pass][cv-pass] Pass |

2D FDTD wave simulation (Attenborough & Van Renterghem 2021, Ch. 4): 100% (4/4)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | Rigid rectangular box eigenfrequency | Mode (1,1) of a 1.0 x 0.7 m rigid box, f = (c/2)*sqrt(1/lx^2 + 1/ly^2), Hz | 299.06 Hz (+/-1.5 Hz) | 298.91 Hz | -0.153 Hz | 10 % | ![Pass][cv-pass] Pass | | Free-field pulse arrival delay | Probe-to-probe delay of a pulse over 0.6 m of air, (r2 - r1)/c, ms | 1.749 ms (+/-0.05 ms) | 1.756 ms | 0.007 ms | 14 % | ![Pass][cv-pass] Pass | | 2D Kirchhoff-Helmholtz NTFF: monopole directivity | Far-field pattern ripple of an enclosed line source, dB | 0 dB (+/-0.2 dB) | 0.044 dB | 0.044 dB | 22 % | ![Pass][cv-pass] Pass | | 2D Kirchhoff-Helmholtz NTFF: monopole level | NTFF far-field level vs the 2D Green function A sqrt(2/(pi k)), dB | 0 dB (+/-0.3 dB) | 0.106 dB | 0.106 dB | 35 % | ![Pass][cv-pass] Pass |

Swept-sine distortion & phase utilities (Farina / Novak): 100% (7/7)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | Farina 2000 / Novak et al. 2015 (Chebyshev identity) | 3rd-harmonic response H3 magnitude of a cubic polynomial, re a3/4 | 0.05 (+/-0.0005) | 0.05001 | 0.00001 | 2 % | ![Pass][cv-pass] Pass | | Novak et al. 2015, JAES 63(10), Eqs. 18/49 | Synchronized-sweep phase of H3 (Chebyshev: -sin(3wt)), rad | 3.1416 rad (+/-0.005 rad) | 3.1411 rad | -0.0005 rad | 10 % | ![Pass][cv-pass] Pass | | Farina 2000, AES 108th Conv. (THD from one sweep) | THD(1 kHz) of the polynomial vs sqrt((a2/2)^2+(a3/4)^2)/(1+3a3/4) | 0.06149 (+/-0.001) | 0.06159 | 0.0001 | 10 % | ![Pass][cv-pass] Pass | | Farina 2000 (distortion rejected from the linear IR) | THD floor of a purely linear path (gain 0.5), max over 100-2000 Hz | 0 (+/-0.001) | 0.00033 | 0.00033 | 33 % | ![Pass][cv-pass] Pass | | Bendat & Piersol, Random Data 4e Sec. 13.1.4 (Hilbert relation) | Min-phase reconstruction of a strictly min-phase biquad, max err, rad | 0 rad (+/-0 rad) | 0 rad | 0 rad | 0 % | ![Pass][cv-pass] Pass | | First-order allpass closed form (1-a^2)/(1+2a cos w+a^2) | Group delay of the a = 0.5 allpass at w = pi/2, samples | 0.6 (+/-0.00001) | 0.6 | 0 | 1 % | ![Pass][cv-pass] Pass | | All-pass decomposition of a pure latency (B&P Sec. 13.1.4) | Excess group delay of a biquad delayed 7.25 samples, samples | 7.25 (+/-0) | 7.25 | 0 | 0 % | ![Pass][cv-pass] Pass |

Spherical ground & barriers (Attenborough / Salomons / Bies): 100% (7/7)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | Attenborough 2e Eq. (2.40c) (spherical Q, hard-ground limit) | abs(Q) as Z grows large (Rp -> 1 so (1 - Rp) -> 0 and Q -> 1) | 1 (+/-0.000001) | 1 | 0 | 0 % | ![Pass][cv-pass] Pass | | Salomons 2001 Sec. 3.4 (two-ray field over a rigid ground) | dL enhancement at small path difference (constructive, +6 dB) | 6.0206 dB (+/-0.1 dB) | 6.0205 dB | -0.0001 dB | 0 % | ![Pass][cv-pass] Pass | | Salomons 2001 Eq. (D.59) (plane-wave Rp, grazing incidence) | Re(Rp) at grazing (hs, hr -> 0, cos(theta) -> 0 so Rp -> -1) | -1 (+/-0.001) | -1 | 0 | 5 % | ![Pass][cv-pass] Pass | | Salomons 2001 Fig. D.3 (grassland ground dip, sigma = 200 kPa s/m2) | Minimum dL for hs = hr = 2 m, r = 100 m (dip near 395 Hz), dB | -12.7 dB (+/-0.3 dB) | -12.72 dB | -0.022 dB | 7 % | ![Pass][cv-pass] Pass | | Bies 5e Eq. (5.138) (Kurze-Anderson, N -> 0) | Barrier attenuation at the shadow boundary N = 0 | 5 dB (+/-0 dB) | 5 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | Bies 5e Eq. (5.138) (Kurze-Anderson, large-N slope) | Delta(N=10) - Delta(N=1) vs the 10 lg(10) = 10 dB decade growth | 10 dB (+/-0.5 dB) | 9.8845 dB | -0.1155 dB | 23 % | ![Pass][cv-pass] Pass | | Attenborough 2e Eqs. (9.19)-(9.20) (rigid half-plane, shadow boundary) | Exact thin-screen insertion loss at grazing (field halved, 6 dB) | 6.0206 dB (+/-0.6 dB) | 5.7932 dB | -0.2274 dB | 38 % | ![Pass][cv-pass] Pass |

Road traffic noise reducing devices (EN 1793): 100% (20/20)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | EN 1793-3:1997 Table 1 (normalised traffic noise spectrum) | the eighteen printed levels, 100 Hz to 5 kHz | 100 Hz = -20 dB; 1 kHz = -8 dB; 5 kHz = -18 dB | 100 Hz = -20 dB; 1 kHz = -8 dB; 5 kHz = -18 dB | exact | 0 % | ![Pass][cv-pass] Pass | | EN 1793-1:2012 Clause 5 (DLalpha, constant absorption) | a device absorbing 0,50 in every band rates -10 lg(1 - 0,50) | 3.0103 dB (+/-0.0001 dB) | 3.0103 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | EN 1793-1:2012 Clause 5 (DLalpha, the 0,99 ratio limit) | a perfect absorber is capped at -10 lg(1 - 0,99) = 20 dB | 20 dB (+/-0 dB) | 20 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | EN 1793-1:2012 Table A.1 (categories of absorptive performance) | the four boundaries A2/A3/A4/A5 read off the reported integer | 4 dB -> A2, 8 dB -> A3, 12 dB -> A4, 16 dB -> A5 | 4 dB -> A2, 8 dB -> A3, 12 dB -> A4, 16 dB -> A5 | 0 | - | ![Pass][cv-pass] Pass | | EN 1793-2:2012 Clause 5.2 (DLR, constant sound reduction index) | a wall with R = 32 dB in every band rates 32 dB | 32 dB (+/-0 dB) | 32 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | EN 1793-2:2012 Clause 5.2 (DLR, spectrum weighting) | one 10 dB band costs more at the 1 kHz peak than at the 100 Hz end | DLR(weak at 1 kHz) < DLR(weak at 100 Hz) | 18.14 dB < 29.73 dB | -11.60 dB | - | ![Pass][cv-pass] Pass | | EN 1793-2:2012 Table A.1 (categories of airborne sound insulation) | the three boundaries B2/B3/B4 read off the reported integer | 15 dB -> B2, 25 dB -> B3, 35 dB -> B4 | 15 dB -> B2, 25 dB -> B3, 35 dB -> B4 | 0 | - | ![Pass][cv-pass] Pass | | EN 1793-5:2016 Table 2 (paths and Cgeo,k of the nine microphones) | dS = 1,50 m, dM = 0,25 m and s = 0,40 m give the printed two decimals | 27/27 printed cells | 27/27 printed cells | exact | 0 % | ![Pass][cv-pass] Pass | | EN 1793-5:2016 Table 3 (nominal path differences of the position checks) | the direct-to-microphone-5 and direct-to-reflected differences, to the millimetre | 18/18 printed cells | 18/18 printed cells | exact | 0 % | ![Pass][cv-pass] Pass | | EN 1793-5:2016 5.6.1 NOTE 1 (maximum sampled area, Formula (8)) | a 4 m by 4 m sample, the 7,9 ms window and 340 m/s give 1,96 m | 1.96 m (+/-0.005 m) | 1.9555 m | -0.0045 m | 90 % | ![Pass][cv-pass] Pass | | EN 1793-5:2016 5.5.5 and 5.5.1 (the three Adrienne windows) | leading edge, flat part and trailing edge of the 7,9 ms, 6,0 ms and 1,3 ms windows | 7.9 ms lead = 0.5 ms; 7.9 ms flat = 5.18 ms; 7.9 ms trail = 2.22 ms; 6.0 ms lead = 0.5 ms; 6.0 ms flat = 3.85 ms; 6.0 ms trail = 1.65 ms; 1.3 ms lead = 0.5 ms; 1.3 ms flat = 0.56 ms; 1.3 ms trail = 0.24 ms | 7.9 ms lead = 0.5 ms; 7.9 ms flat = 5.18 ms; 7.9 ms trail = 2.22 ms; 6.0 ms lead = 0.5 ms; 6.0 ms flat = 3.85 ms; 6.0 ms trail = 1.65 ms; 1.3 ms lead = 0.5 ms; 1.3 ms flat = 0.56 ms; 1.3 ms trail = 0.24 ms | exact | 0 % | ![Pass][cv-pass] Pass | | EN 1793-5:2016 Formula (1) (a perfect flat reflector) | RI = 1 in all eighteen bands once Cgeo,k restores the longer path | max \|RI - 1\| = 0 | 0 | 0 | 32 % | ![Pass][cv-pass] Pass | | EN 1793-5:2016 Formulas (1) and (4) (a gain change between configurations) | a reflection of amplitude 0,5 rates RI = 0,25 whatever the gain did | max \|RI - 0,25\| = 0 | 0 | 0 | 1 % | ![Pass][cv-pass] Pass | | EN 1793-5:2016 Formula (1) (the one-third octave bands of a comb) | two impulses 0,5 ms apart: 0,25 (2 + 2 cos 2 pi f tau) averaged over each band's base-ten edges | max \|RI - comb\| = 0 | 0 | 0 | 31 % | ![Pass][cv-pass] Pass | | EN 1793-5:2016 5.5.5 (which window serves which bands) | an impulse 6 ms after the reflection moves 100 Hz to 160 Hz and no band from 200 Hz | max \|RI - 0,25\| from 200 Hz = 0 | 0 | 0 | 0 % | ![Pass][cv-pass] Pass | | EN 1793-5:2016 5.5.4 (subtraction to a fiftieth of a sample) | a free-field record 0,36 samples late is found 0,36 samples late | -0.36 (+/-0) | -0.36 | 0 | 0 % | ![Pass][cv-pass] Pass | | EN 1793-5:2016 Table B.1 (average of twelve grid positions) | the printed average of every band, two of them exact ties at the half | 18/18 printed averages | 18/18 printed averages | exact | 0 % | ![Pass][cv-pass] Pass | | EN 1793-5:2016 Table B.2 (DLRI before rounding) and Table B.1 (DLRI = 8 dB) | Formula (12) on the printed averages from the 200 Hz band | 7.68 dB (+/-0.005 dB) | 7.6797 dB | -0.0003 dB | 6 % | ![Pass][cv-pass] Pass | | EN 1793-5:2016 Table B.2 (expanded uncertainty of DLRI) | 1,96 times the high reproducibility of Table A.1, 0,81 dB | 1.59 dB (+/-0.005 dB) | 1.5876 dB | -0.0024 dB | 48 % | ![Pass][cv-pass] Pass | | EN 1793-5:2016 Table B.2 (expanded uncertainty per band) | the eleven cells 1,96 times the printed sR gives; the other seven are a hundredth lower, as unrounded sR would give | 11/11 printed cells | 11/11 printed cells | exact | 0 % | ![Pass][cv-pass] Pass |

Railway noise reducing devices (EN 16272): 100% (3/3)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | EN 16272-3-1:2012 Table 1 (normalised railway noise spectrum) | the printed levels at the ends and on the plateau | 100 Hz = -27 dB; 2 kHz = -9 dB; 5 kHz = -17 dB | 100 Hz = -27 dB; 2 kHz = -9 dB; 5 kHz = -17 dB | exact | 0 % | ![Pass][cv-pass] Pass | | EN 16272-3-1:2012 Clause 6 (DLR on the railway spectrum) | a wall with R = 26 dB in every band rates 26 dB | 26 dB (+/-0 dB) | 26 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | EN 16272-3-1:2012 Clause 5 (DLalpha on the railway spectrum) | the same absorber rates higher against rolling noise than against a road | DLalpha(railway) > DLalpha(road) | 4.77 dB > 3.95 dB | +0.82 dB | - | ![Pass][cv-pass] Pass |

Panel & aperture sound insulation (Bies / Hopkins / Cremer): 100% (17/17)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | Bies 5e Eq. 7.40 (mass law) | 6 dB per octave (500 -> 1000 Hz) | 6.0206 dB (+/-0.01 dB) | 6.02 dB | -0.0006 dB | 6 % | ![Pass][cv-pass] Pass | | Bies 5e Eq. 7.40 (mass law) | 6 dB per doubling of mass | 6.0206 dB (+/-0.01 dB) | 6.02 dB | -0.0006 dB | 6 % | ![Pass][cv-pass] Pass | | Bies 5e Eq. 7.42 (field incidence) | One-third-octave correction 5.5 dB | 5.5 dB (+/-0.001 dB) | 5.5 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | Hopkins Eq. 2.201 / Bies Eq. 7.3 | Coincidence frequency, 6 mm glass | 2079 Hz (+/-3%) | 2107.3639 Hz | 28.3639 Hz | 45 % | ![Pass][cv-pass] Pass | | Cremer Table 5.1 | Thin-plate point impedance Z = 8 sqrt(B' m'') | 2529.8221 N·s/m (+/-0 N·s/m) | 2529.8221 N·s/m | 0 N·s/m | 0 % | ![Pass][cv-pass] Pass | | Cremer Table 5.1 | Infinite-beam mobility phase -45 deg | -45 deg (+/-0 deg) | -45 deg | 0 deg | 0 % | ![Pass][cv-pass] Pass | | Hopkins Eq. 2.229 (Leppington/Maidanik) | Radiation efficiency at f = 2 fc | 1.4142 (+/-0) | 1.4142 | 0 | 0 % | ![Pass][cv-pass] Pass | | Bies Eq. 7.62 / Hopkins Eq. 4.73 | Mass-air-mass resonance f0, empty cavity | 76.9484 Hz (+/-0.5%) | 76.8521 Hz | -0.0962 Hz | 25 % | ![Pass][cv-pass] Pass | | Bies Eq. 7.64 (double wall) | Below f0 = mass law of the combined mass | 11.6144 dB (+/-0 dB) | 11.6144 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | Hopkins Eq. 4.92 (composite) | 1 % open area caps R at 10 lg(S/Sa) | 20 dB (+/-0.05 dB) | 19.9996 dB | -0.0004 dB | 1 % | ![Pass][cv-pass] Pass | | Vigran Building Acoustics Eq. (3.109), printed p. 96 | Flat 1 mm steel plate 1 m x 1 m, f(1,1) | 4.9 Hz (+/-0.05 Hz) | 4.93 Hz | 0.033 Hz | 66 % | ![Pass][cv-pass] Pass | | Vigran Eqs. (3.113)/(3.115), printed p. 96 | Corrugated 1 mm steel plate (H = 10 mm, L = 100 mm), f(2,2) | 102 Hz (+/-0.1 Hz) | 102.09 Hz | 0.092 Hz | 92 % | ![Pass][cv-pass] Pass | | Bies 5e Eq. (7.59) / Vigran Eq. (6.112) | Heckl coincidence-branch constant, dB (rho c = 414) | -13.2 dB (+/-0.02 dB) | -13.217 dB | -0.017 dB | 85 % | ![Pass][cv-pass] Pass | | Bies 5e Eq. (7.60) / Vigran Eq. (6.112) | Heckl recovery-branch constant, dB (rho c = 414) | -23 dB (+/-0.2 dB) | -23.16 dB | -0.16 dB | 80 % | ![Pass][cv-pass] Pass | | Vigran Eq. (6.111) / Bies Eq. (7.38) | Orthotropic diffuse integral below fc1 vs its exact mass-law form | 6.287723 dB (+/-0.000001 dB) | 6.287723 dB | 0 dB | 1 % | ![Pass][cv-pass] Pass | | Hopkins Table A2, printed p. 608 | h.fc products of 25 building-material rows, worst deviation | 0 m·Hz (+/-0.06 m·Hz) | 0.0476 m·Hz | 0.0476 m·Hz | 79 % | ![Pass][cv-pass] Pass | | Hopkins Eq. 4.99/4.101 (Gomperts slit) | Transmission maximum at first resonance | 1544.9615 Hz (+/-15 Hz) | 1542.9615 Hz | -2 Hz | 13 % | ![Pass][cv-pass] Pass |

Bending-wave plate-junction transmission (Cremer / Craik / Hopkins): 100% (6/6)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | Hopkins Eq. 5.12 (identical plates) | X-junction corner tau12(0 deg) = 1/8 | 0.125 (+/-0) | 0.125 | 0 | 0 % | ![Pass][cv-pass] Pass | | Hopkins Eqs 5.12 + 5.6 (identical plates) | X-junction corner angular average = 1/12 | 0.0833 (+/-0) | 0.0833 | 0 | 0 % | ![Pass][cv-pass] Pass | | Hopkins Eqs 5.12 + 5.6 (identical plates) | L-junction corner angular average = 1/3 | 0.3333 (+/-0) | 0.3333 | 0 | 0 % | ![Pass][cv-pass] Pass | | Hopkins Eq. 5.14 (identical plates) | In-line junction tau12(0 deg) = 1 | 1 (+/-0) | 1 | 0 | 0 % | ![Pass][cv-pass] Pass | | Hopkins Eq. 5.7 (SEA consistency) | X-junction reciprocity tau_bar_12 / tau_bar_21 = chi | 1.5 (+/-0) | 1.5 | 0 | 0 % | ![Pass][cv-pass] Pass | | Hopkins Eq. 5.116 (identical plates, fc_j = f_ref) | X-junction vibration reduction index = 10 lg(12) | 10.7918 dB (+/-0 dB) | 10.7918 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass |

Atmospheric refraction (Salomons rays / GFPE): 100% (3/3)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | Salomons Sec. 4.4 (ray turning height, linear profile) | Turning height of a 10 deg ray vs Rc(1 - cos theta0) (circular arc), m | 26.457 m (+/-0.1 m) | 26.457 m | 0 m | 0 % | ![Pass][cv-pass] Pass | | Salomons Eq. (3.4) (GFPE vs spherical-wave ground effect, homogeneous) | PE relative level at 500 m over grassland vs Weyl-Van der Pol, dB | -16.368 dB (+/-0.5 dB) | -16.402 dB | -0.035 dB | 7 % | ![Pass][cv-pass] Pass | | Salomons Eq. (3.4) (GFPE hard ground vs two-ray, homogeneous) | PE relative level at 500 m over a rigid ground vs the coherent two-ray, dB | 5.997 dB (+/-0.6 dB) | 5.593 dB | -0.405 dB | 68 % | ![Pass][cv-pass] Pass |

Electroacoustics: 100% (9/9)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | Beranek & Mellow 2e Eq. (13.117) | Piston resistance R1(x) = 1 - 2 J1(x)/x at x = 2ka = 2 | 0.423275 (+/-0.00001) | 0.423275 | 0 | 2 % | ![Pass][cv-pass] Pass | | Beranek & Mellow 2e Eq. (13.118) | Piston reactance X1(x) = 2 H1(x)/x at x = 2ka = 2 | 0.646764 (+/-0.00001) | 0.646764 | 0 | 3 % | ![Pass][cv-pass] Pass | | Beranek & Mellow 2e Eq. (13.117) (low-frequency limit) | R1 -> (ka)^2/2 as ka -> 0 (x = 0.02, ka = 0.01) | 0.00005 (+/-0.01%) | 0.00005 | 0 | 17 % | ![Pass][cv-pass] Pass | | Beranek & Mellow 2e Eq. (4.151) | Radiation mass M = 8 rho a^3 / 3 (a = 0.1 m, rho = 1.206) | 0.003216 kg (+/-0 kg) | 0.003216 kg | 0 kg | 0 % | ![Pass][cv-pass] Pass | | Beranek & Mellow 2e Eq. (13.102), Table 14.1 | First directivity null at ka sin(theta) = 3.8317 (first zero of J1) | 0 (+/-0.000001) | 0 | 0 | 0 % | ![Pass][cv-pass] Pass | | Beranek & Mellow 2e §4.19 (half-space baffle) | Directivity index DI -> 10 lg 2 = 3.01 dB as ka -> 0 | 3.0103 dB (+/-0.001 dB) | 3.0103 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | Long, Architectural Acoustics 2e, Eq. (18.21) | Omnidirectional mic at Zs = -6 dB: L(H-M) <= L(H-L) - 4 dB | 76 dB (+/-0 dB) | 76 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | Long, Architectural Acoustics 2e, Eq. (18.22) | Cardioid mic (DM = -2 dB) at Zs = -6 dB: L(H-M) <= L(H-L) - 2 dB | 78 dB (+/-0 dB) | 78 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | Long, Architectural Acoustics 2e, Eq. (18.23) | Number-of-open-microphones correction 10 lg Nm at Nm = 4 | 6.0206 dB (+/-0 dB) | 6.0206 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass |

Random-incidence and diffuse-field sensitivity (IEC 61183): 100% (8/8)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | IEC 61183:1994 Formulas (A.1), (A.2), Table A.1 | Adjustment factors K(phi) of all 36 angles, 10° steps in two planes | 36/36 angles of Table A.1 | 36/36 angles of Table A.1 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61183:1994 A.6 NOTE 2, Table A.1 | Four planes at 45° take half the factors of Table A.1 | 36/36 halved factors of Table A.1 | 36/36 halved factors of Table A.1 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61183:1994 A.1.7 | Largest of the 70 elements of 10° steps in two planes, about 2,2 % of the sphere | 2.2 % (+/-0.05 %) | 2.179 % | -0.021 % | 42 % | ![Pass][cv-pass] Pass | | IEC 61183:1994 Formula (A.3), Table A.1 | The 72 factors of two planes sum to one with the poles in both sums | 1 (+/-0) | 1 | 0 | 0 % | ![Pass][cv-pass] Pass | | IEC 61183:1994 Formulas (A.3), (1) | An omnidirectional instrument has 10 lg gamma = 0 dB, so G_RI = G_F | 0 dB (+/-0 dB) | 0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | IEC 61183:1994 note to A.1.8 | Directions of the 38 equal-area elements, to the 0,1° printed | 18/18 printed angles other than 77,9° and 282,1° | 18/18 printed angles other than 77,9° and 282,1° | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61183:1994 note to A.1.8, Formula (A.5) | Each of the 38 equal-area elements is 2,6 % of the sphere | 2.6 % (+/-0.05 %) | 2.632 % | 0.032 % | 64 % | ![Pass][cv-pass] Pass | | IEC 61183:1994 Formulas (10), (11), Table B.1 | Reference corrections of an LS2aP/LS2F microphone, 25 Hz to 20 kHz | 30/30 printed cells of Table B.1 | 30/30 printed cells of Table B.1 | exact | 0 % | ![Pass][cv-pass] Pass |

Free-field corrections of a sound level meter (IEC 62585): 100% (16/16)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | IEC 62585:2012 Table I.2 | Standard uncertainty of each of the 15 components at 1 kHz | 15/15 components of Table I.2 | 15/15 components of Table I.2 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 62585:2012 Table I.2 | Combined standard uncertainty of the correction at 1 kHz | 0.059 dB (+/-0.0001 dB) | 0.059 dB | 0 dB | 62 % | ![Pass][cv-pass] Pass | | IEC 62585:2012 Table I.2 | Welch-Satterthwaite effective degrees of freedom at 1 kHz | 29.98 (+/-0.01) | 29.98 | 0.002 | 40 % | ![Pass][cv-pass] Pass | | IEC 62585:2012 Table I.2, clause 5 | Coverage factor for 95 % at the 29,98 degrees of freedom the table prints | 2.04 (printed 2,11, an erratum) | 2.042 | 0.002 | 40 % | ![Pass][cv-pass] Pass | | IEC 62585:2012 Table I.2, clause 5 | Expanded uncertainty of the correction at 1 kHz, to the printed guard digit | 0.121 dB (printed 0,12(4), an erratum) | 0.1206 dB | -0.0004 dB | 80 % | ![Pass][cv-pass] Pass | | IEC 62585:2012 Table I.3 | Standard uncertainty of the four components that change at 8 kHz | 4/4 changed components of Table I.3 | 4/4 changed components of Table I.3 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 62585:2012 Table I.3 | Combined standard uncertainty of the correction at 8 kHz | 0.14 dB (+/-0.0005 dB) | 0.14 dB | 0 dB | 5 % | ![Pass][cv-pass] Pass | | IEC 62585:2012 Table I.3 | Coverage factor at 8 kHz, more than 30 effective degrees of freedom | 2 (+/-0.005) | 2.001 | 0.001 | 20 % | ![Pass][cv-pass] Pass | | IEC 62585:2012 Table I.3 | Expanded uncertainty of the correction at 8 kHz | 0.28 dB (+/-0.005 dB) | 0.28 dB | 0 dB | 3 % | ![Pass][cv-pass] Pass | | IEC 62585:2012 Formula (H.1), Table H.1 | Exact one-twelfth-octave frequencies from 1 kHz to 10 kHz | 41/41 frequencies of Table H.1 | 41/41 frequencies of Table H.1 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 62585:2012 clauses 9 to 14 | Maximum permitted expanded uncertainty either side of each boundary | 18/18 printed maxima of clauses 9 to 14 | 18/18 printed maxima of clauses 9 to 14 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 62585:2012 clause 6 | Static-pressure component below 97 kPa, up to and above 3 kHz | 5/5 clause 6 components | 5/5 clause 6 components | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 62585:2012 Formulas (D.1) to (D.7) | A calibrator's correction from readings built by (D.1) to (D.4) | 0 dB (+/-0.000000000001 dB) | 0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | IEC 62585:2012 Formulas (E.1) to (E.6), Figure E.1 | A coupler's correction from readings built by (E.1) to (E.3B) | 0 dB (+/-0.000000000001 dB) | 0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | IEC 62585:2012 Formulas (F.1) to (F.13) | An actuator's normalised correction from readings built by (F.1) to (F.3) | 0 dB (+/-0.000000000001 dB) | 0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | IEC 62585:2012 Annex A, Figure A.1 | Adjustment value of a response whose fit is known in closed form | 0.2 dB (closed form) | 0.2 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass |

Microphone calibration by comparison (IEC 61094-5, IEC 61094-8): 100% (34/34)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | IEC 61094-5:2016 Table D.1 | Standard uncertainty at 2 kHz of the 7 components whose row states a value | 7/7 components of Table D.1 | 7/7 components of Table D.1 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61094-5:2016 D.3 | Combined standard uncertainty of the example budget at 2 kHz | 0.0437 dB (printed 0,040, an erratum) | 0.0437 dB | 0 dB | 62 % | ![Pass][cv-pass] Pass | | IEC 61094-5:2016 D.2, D.3 | Expanded uncertainty (k = 2) of the example budget at 2 kHz | 0.087 dB (printed 0,08, an erratum) | 0.087 dB | 0 dB | 68 % | ![Pass][cv-pass] Pass | | IEC 61094-5:2016 D.3 | Combined standard uncertainty by the strict calculation in linear form | 0.043614 dB (0.043669 dB in decibels) | 0.043614 dB | 0 dB | 24 % | ![Pass][cv-pass] Pass | | IEC 61094-5:2016 Table A.1 | Correction of a WS3 microphone against an LS2aP in the jig of Figure A.4, 14 frequencies | 14/14 corrections of Table A.1 | 14/14 corrections of Table A.1 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61094-5:2016 Table A.1 NOTE | Expanded uncertainty of the correction at 20 kHz, a tenth of its value | 0.1443 dB (+/-0 dB) | 0.1443 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | IEC 61094-5:2016 6.5, Table A.1; Barham et al. (2014) Formulas (1) to (5), Tables 1 and 2 | Correction of a WS3 microphone by the model of [1] from the inputs of its Table 1, 14 frequencies | 14/14 corrections of Table A.1 | 14/14 corrections of Table A.1 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61094-5:2016 6.5, Table A.1 and its NOTE; Barham et al. (2014) Table 1 | Largest deviation of the model at the reference air of clause 4 from Table A.1, against a tenth of the 10 % its NOTE allows | Table A.1, within 0.0144 dB (a tenth of 10 % of 1.443 dB) | max deviation 0.0093 dB | 0.0093 dB | 64 % | ![Pass][cv-pass] Pass | | IEC 61094-5:2016 A.2, Table A.1 NOTE; Barham et al. (2014) Formulas (1) to (5) | Correction at twice the separation, the change A.2 names, against the model evaluated at twice the distance, 14 frequencies | the model at L = 1.0 mm, every row | max deviation 0.000000000000 dB; the change is 5.4 % to 6.3 % of each correction, where A.2 observed approximately 10 % | 0 dB | 0 % | ![Pass][cv-pass] Pass | | IEC 61094-5:2016 Formulas (C.1) to (C.3) | Sensitivity level of the test microphone through the interchange, whatever the channel gains, source drift and field asymmetry | the test microphone's level at all 5 frequencies | max deviation 0.000000000 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | IEC 61094-5:2016 D.2 | M_test = M_ref x R_V / R_P in linear form against the level form | M_ref x R_V / R_P at all 5 frequencies | max relative deviation 0.000000000000 | 0 | 0 % | ![Pass][cv-pass] Pass | | IEC 61094-8:2012 A.2 | Monitor ratios cancel a source that drifts between the two measurements | the test microphone's level at all 5 frequencies | max deviation 0.000000000 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | IEC 61094-8:2012 Table 1 | Typical expanded uncertainty of the 5 reference calibration options at 1 kHz and 10 kHz | 10/10 cells of Table 1 | 10/10 cells of Table 1 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61094-8:2012 Table 2 | Source of uncertainty and subclause references of the 12 typical components | 12/12 rows of Table 2 | 12/12 rows of Table 2 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61094-8:2012 Formula (B.1), Figure B.1 | A reflection from the boundary of the effective free-field region arrives at the end of a 5 ms window | 5 ms (+/-0 ms) | 5 ms | 0 ms | 0 % | ![Pass][cv-pass] Pass | | IEC 61094-5:2016 5.1.1, Formulas (C.1) to (C.3) | Phase of the test microphone through the interchange, whatever the channel phase shifts (one inverting) and field asymmetry | the test microphone's phase at all 5 frequencies, both channel pairs | max deviation 0.000000000 deg | 0 deg | 0 % | ![Pass][cv-pass] Pass | | IEC 61094-8:2012 5.1, A.2 | Monitor phases cancel a source that drifts in phase between the two measurements | the test microphone's phase at all 5 frequencies | max deviation 0.000000000 deg | 0 deg | 0 % | ![Pass][cv-pass] Pass | | IEC 61094-5:2016 Table D.1 (Microphone impedance) | A semi-range of 0,005 dB of the impedance effect as a standard uncertainty | 0.003 dB (0.005/1.7321, printed) | 0.003 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | IEC 61094-2:2009 Formula (3); IEC 61094-5:2016 7.4 | Pressure ratio of a substitution in a closed coupler against the admittance sums of Formula (3), 7 frequencies | the ratio of the two sums of Formula (3) at all 7 frequencies | max relative deviation 0.000000000000 | 0 | 0 % | ![Pass][cv-pass] Pass | | IEC 61094-5:2016 Table D.1 (Microphone impedance), 7.4 | Pressure on each microphone behind the air between them, in series, 7 frequencies | p0 Z_a/(Z_a + Z_x) for each microphone, at all 7 frequencies | max relative deviation 0.000000000000 | 0 | 0 % | ![Pass][cv-pass] Pass | | IEC 61094-2:2009 E.4; IEC 61094-1:2000 6.2.2 | Lumped equivalent volume: no imaginary impedance at the resonance, and the loss factor r_a 2 pi f0 c_a | 2/2 relations of E.4 | 2/2 relations of E.4 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61094-5:2016 Table D.1 (Microphone impedance), 7.4; Jarvis (1996) NPL CIRA(EXT) 010 Appendix B | Ratio of the pressures on an LS2P and a high sensitivity WS2P in the coupler of [2], against the ladder it prints, 200 frequencies | P1/P2 of Appendix B at all 200 frequencies | max relative deviation 0.000000000000 | 0 | 0 % | ![Pass][cv-pass] Pass | | Jarvis (1996) NPL CIRA(EXT) 010 Appendix B, folio 26 | Volume of the coupler of the example, v = pi r^2 L | 2.534e-7 m³ as printed (+/-0.0005e-7 m³, its last digit) | 2.53353e-07 m³ | -0.00000000005 m³ | 100 % | ![Pass][cv-pass] Pass | | Jarvis (1996) NPL CIRA(EXT) 010 Appendix B, graph on folio 27 | Dip and value at 20 kHz of the error in level, and peak and value at 20 kHz of the error in phase, read off the printed graphs | 6/6 readings of the graphs | 6/6 readings of the graphs | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61094-5:2016 6.7 | A jig validated against a reciprocity calibration on a grid of its own: agreement within the root-sum-square of the two expanded uncertainties, 5 frequencies | 6/6 verdicts | 6/6 verdicts | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61094-5:2016 6.7; ISO/IEC Guide 98-3 F.1.2.3, Example 2 | Correlation of two calibrations against the same standard of 10^-4, for comparisons of 100, 10 and 1 x 10^-6, as printed | 3/3 coefficients | 3/3 coefficients | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61094-5:2016 6.7, Table D.1; ISO/IEC Guide 98-3 5.2.2 | Expanded uncertainty of the difference of two calibrations against the same LS2P, each with the budget of Table D.1 | 0.101271911 dB, the reference row cancelling (0.123515181 dB as independent) | 0.101271911 dB at the worst of 5 frequencies | 0 dB | 0 % | ![Pass][cv-pass] Pass | | IEC 61094-8:2012 B.6.1, Formula (B.10) | Spectrum of a rectangular pulse of a = 10 V and b = 2,5 µs at 6 frequencies, as printed | Formula (B.10) at all 6 frequencies | max deviation 0.000000000000 of 2ab | 0 | 0 % | ![Pass][cv-pass] Pass | | IEC 61094-8:2012 B.6.1 | First zero of the pulse spectrum, f = 1/(2b), for b = 2,5 µs | 200000 Hz (+/-0 Hz) | 200000 Hz | 0 Hz | 0 % | ![Pass][cv-pass] Pass | | IEC 61094-8:2012 B.6.1 | Half-duration b for a first zero an order of magnitude above 20 kHz, 'just a few microseconds' | 2.5 µs ('just a few microseconds') | 2.5 µs | 0 µs | 0 % | ![Pass][cv-pass] Pass | | IEC 61094-8:2012 B.2.2 | Length of the impulse response of a 120 Hz step, against the 8 ms of the primary reflections | 1/120 Hz = 8.333 ms, past the 8 ms printed | 2/2 conditions of B.2.2 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61094-8:2012 B.2.2 | Length of the impulse response of the 30 Hz step of a large free-field room | 33.333 ms (+/-0 ms) | 33.333 ms | 0 ms | 0 % | ![Pass][cv-pass] Pass | | IEC 61094-8:2012 B.2.1, Formulas (B.2) and (B.3); 8.6 | A reflection removed by the time window, on data simulated with and without it, 6 frequencies | the direct sound alone, with and without the reflection | max deviation 0.000001 of the direct sound | 0.000001 | 1 % | ![Pass][cv-pass] Pass | | IEC 61094-8:2012 Formula (B.1), B.1.3 a) | The longest window for a reflected path of 2,2 m at 1 m puts that path on the boundary of the region | 2.2 m (+/-0 m) | 2.2 m | 0 m | 0 % | ![Pass][cv-pass] Pass |

Microphone calibration by reciprocity (IEC 61094-2, IEC 61094-3): 100% (22/22)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | IEC 61094-2:2009 Table A.1 | Gerber's E_V by the full solution, 96 entries at R = 0,2, 0,5 and 1, X = 1 to 800 | all 96 entries within the stated 0.00001 | max deviation 0.0000059 | 0.0000059 | 59 % | ![Pass][cv-pass] Pass | | IEC 61094-2:2009 Formula (A.2) | Modulus of the approximation against Table A.1 where A.2 states 0,01 %, X > 5 | within 0.01 % at every entry | max relative deviation 0.0000060 | 0.000006 | 6 % | ![Pass][cv-pass] Pass | | IEC 61094-2:2009 A.3 | Lowest whole frequency at which check_coupler holds Formulas (A.3) and (A.4) valid, LS1P and LS2aP plane-wave couplers of Table C.1 | LS1P = 3 Hz; LS2aP = 12 Hz | LS1P = 3 Hz; LS2aP = 12 Hz | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61094-2:2009 Table B.1 | Real part of the input impedance of six open capillary tubes, 20 Hz to 20 kHz, 186 entries | all 186 entries within 0.002 GPa·s/m³ | max deviation 0.0011 (20 Hz to 250 Hz: 0.0005) | 0.0011 GPa·s/m³ | 55 % | ![Pass][cv-pass] Pass | | IEC 61094-2:2009 Table B.2 | Imaginary part of the input impedance of six open capillary tubes, 20 Hz to 20 kHz, 186 entries | all 186 entries within 0.002 GPa·s/m³ | max deviation 0.0018 (20 Hz to 250 Hz: 0.0007) | 0.0018 GPa·s/m³ | 90 % | ![Pass][cv-pass] Pass | | IEC 61094-2:2009 Table C.1 | Nominal dimensions of the plane-wave couplers of LS1P, LS2aP and LS2bP microphones | 18/18 cells of Table C.1 | 18/18 cells of Table C.1 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61094-2:2009 Table C.2 | Nominal dimensions and tolerance of the large-volume couplers of LS1P, LS2aP and LS2bP microphones | 21/21 cells of Table C.2 | 21/21 cells of Table C.2 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61094-2:2009 Table C.3 | Wave-motion corrections of the air-filled large-volume coupler for LS1P microphones | 6/6 rows of Table C.3 | 6/6 rows of Table C.3 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61094-2:2009 Table 1 | The 35 uncertainty components and the subclauses each is referred to | 35/35 rows of Table 1 | 35/35 rows of Table 1 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61094-2:2009 Formulas (2) and (7) | Three LS1P microphones through the plane-wave coupler give their sensitivities back | the three sensitivities at all 8 frequencies | max relative deviation below 1e-12 | 0 | 0 % | ![Pass][cv-pass] Pass | | IEC 61094-2:2009 Formula (8) | Two microphones and the ratio from an auxiliary source give their sensitivities back | both sensitivities at all 8 frequencies | max relative deviation below 1e-12 | 0 | 0 % | ![Pass][cv-pass] Pass | | IEC 61094-2:2009 Formula (4) | The lossless plane-wave line at 20 Hz is the compliance of its gas (stiffness rho c^2), the excess front-cavity volumes and the equivalent volumes | the compliances of the line, rho c**2, to (k l0)**2 | relative deviation 3.39e-06 | 0.00000339 | 34 % | ![Pass][cv-pass] Pass | | IEC 61094-2:2009 Formula (A.1) | Heat-conduction factor from isothermal (kappa) to adiabatic (1) in the large-volume coupler of Table C.2 | kappa at 0.01 Hz, 1 at 1 MHz | max relative deviation 2.20e-04 | 0.00022 | 11 % | ![Pass][cv-pass] Pass | | IEC 61094-2:2009 Formulas (3) and (A.1) with Table A.1 | Heat-conducting transfer impedance of a large-volume coupler of R = 0,5 at the X = 2 and X = 20 of Table A.1, at 23 °C and at 20 °C, 95 kPa | Formula (3) with Table A.1, within its 0.00001 | max relative deviation 1.49e-06 | 0.00000149 | 15 % | ![Pass][cv-pass] Pass | | IEC 61094-2:2009 Formulas (4) and (A.3) to (A.5) | Heat-conducting and viscous transfer impedance of the LS1P plane-wave coupler at 250 Hz, 1 kHz and 8 kHz | Formulas (4), (A.3), (A.4) and (A.5) at 3 frequencies | max relative deviation below 1e-12 | 0 | 0 % | ![Pass][cv-pass] Pass | | IEC 61094-3:2016 Table B.1 | Attenuation of sound pressure in air by ISO 9613-1, 1 kHz to 50 kHz at nine conditions, 162 entries | 162/162 entries of Table B.1 | 162/162 entries of Table B.1 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61094-3:2016 B.2 | Attenuation by the five steps of B.2 against Table B.1, within the ±10 % B.2 states | within ±10 % of all 162 entries | max relative deviation 0.0108 | 0.0108 | 11 % | ![Pass][cv-pass] Pass | | IEC 61094-3:2016 B.2 Step 1 vs IEC 61094-2:2009 Table F.2 | Water vapour mole fraction at 23 °C, 101,325 kPa, 50 % with the saturation pressure of Table F.2 | 0.01392758, the x_w of IEC 61094-2 Annex F | 0.01392758 | 0 | 0 % | ![Pass][cv-pass] Pass | | IEC 61094-3:2016 Formulas (7), (8) and (D.1) | Three microphones at 0,20 m to 0,30 m give their complex free-field sensitivities back | the three complex sensitivities at all 6 frequencies | max relative deviation below 1e-12 | 0 | 0 % | ![Pass][cv-pass] Pass | | IEC 61094-3:2016 Formula (9) | Two microphones and the ratio from an auxiliary source give their complex sensitivities back, as COR1 makes the formula | both complex sensitivities at all 6 frequencies | max relative deviation below 1e-12 | 0 | 0 % | ![Pass][cv-pass] Pass | | IEC 61094-3:2016 6.5 | Acoustic centre where the inverse of the pressure, corrected for attenuation, crosses the axis | 4 mm (+/-0 mm) | 4 mm | 0 mm | 0 % | ![Pass][cv-pass] Pass | | IEC 61094-3:2016 Table 1 | The 23 uncertainty components and the subclauses each is referred to | 23/23 rows of Table 1 | 23/23 rows of Table 1 | exact | 0 % | ![Pass][cv-pass] Pass |

Audio-frequency induction loops (IEC 60118-4:2014+A1, IEC 62489-1:2010+A1): 100% (67/67)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | IEC 60118-4:2014 3.1 | Level of 400 mA/m, the reference magnetic field strength | 0 dB (+/-0 dB) | 0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | IEC 60118-4:2014 4.3 | Level of 100 mA/m, the long-term average of 70 dB SPL | -12 dB (+/-0.05 dB) | -12.04 dB | -0.041 dB | 82 % | ![Pass][cv-pass] Pass | | IEC 60118-4:2014 6.4 NOTE 2 | Third-order Butterworth band limit at 100 Hz (-3 dB at 75 Hz and 6,5 kHz) | -0.711 dB from the 6.4 filters (NOTE 2 prints -0.8 dB, see ERRATA) | -0.711 dB | 0 dB | 75 % | ![Pass][cv-pass] Pass | | IEC 60118-4:2014 6.4 NOTE 2 | Third-order Butterworth band limit at 5 kHz (-3 dB at 75 Hz and 6,5 kHz) | -0.818 dB from the 6.4 filters (NOTE 2 prints -0.7 dB, see ERRATA) | -0.818 dB | 0 dB | 59 % | ![Pass][cv-pass] Pass | | IEC 60118-4:2014 6.4 | Band-limited pink noise flat within 1 dB from 100 Hz to 5 kHz | within +/-1 dB from 100 Hz to 5 kHz | worst -0.818 dB at 5000 Hz | headroom 0.182 dB | 82 % | ![Pass][cv-pass] Pass | | IEC 60118-4:2014 6.4 | Peak-to-peak over RMS of the pink noise, at least 18 dB (crest factor 4) | at least 18 dB (IEC 62489-1 5.4.8.2 b): 18 dB +/-2 dB) | 18.062 dB | headroom 0.062 dB | 94 % | ![Pass][cv-pass] Pass | | IEC 60118-4:2014 Table 2 | Combi signal: RMS of the pink noise re the sine | -6 dB (+/-0.02 dB) | -5.999 dB | 0.001 dB | 5 % | ![Pass][cv-pass] Pass | | IEC 60118-4:2014 Table 2 | Combi signal: sine peaks below the maximum peak of the noise | 3 dB (+/-0.05 dB) | 3.031 dB | 0.031 dB | 62 % | ![Pass][cv-pass] Pass | | IEC 60118-4:2014 7.2 | Reference signal-to-noise ratio classed at 47, 32 and 22 dB | each boundary in its 7.2 class | above 47 dB = 1; 47 dB = 1; 32 dB = 1; below 32 dB = 1; 22 dB = 1; below 22 dB = 1 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60118-4:2014 8.4.3 | Field strength at every point within 3 dB of 8.2.7 | +3 dB = 1; -3 dB = 1; +3,01 dB = 0; -3,01 dB = 0; -2,9 dB on a meter reading 400 mA/m as -5,9 dB = 1 | +3 dB = 1; -3 dB = 1; +3,01 dB = 0; -3,01 dB = 0; -2,9 dB on a meter reading 400 mA/m as -5,9 dB = 1 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60118-4:2014 8.2.7 | Maximum field of 400 mA/m reached at one point at least | 0 dB at one point, -3 dB elsewhere = 1; -0,01 dB at best = 0; pink noise: -6 dB at one point (Table 3) = 1; pink noise: -6,01 dB at best = 0 | 0 dB at one point, -3 dB elsewhere = 1; -0,01 dB at best = 0; pink noise: -6 dB at one point (Table 3) = 1; pink noise: -6,01 dB at best = 0 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60118-4:2014 8.3.7 | Frequency response within 3 dB of 1 kHz from 100 Hz to 5 kHz | -3 dB at 100 Hz, +3 dB at 5 kHz = 1; -3,01 dB at 100 Hz = 0; +3,01 dB at 5 kHz = 0; -20 dB outside the band = 1; -18,6 dB at 100 Hz against -15,6 dB at 1 kHz = 1; -31,7 dB at 5 kHz against -34,7 dB at 1 kHz = 1 | -3 dB at 100 Hz, +3 dB at 5 kHz = 1; -3,01 dB at 100 Hz = 0; +3,01 dB at 5 kHz = 0; -20 dB outside the band = 1; -18,6 dB at 100 Hz against -15,6 dB at 1 kHz = 1; -31,7 dB at 5 kHz against -34,7 dB at 1 kHz = 1 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60118-4:2014+A1 9.5 | Small-volume limits: 6 dB range, 0 dB reached, +8 dB area | +/-6 dB with 0 dB reached = 1; +6,01 dB at one point = 0; every point below 0 dB = 0; +8 dB in the standing area = 1; +8,01 dB in the standing area = 0 | +/-6 dB with 0 dB reached = 1; +6,01 dB at one point = 0; every point below 0 dB = 0; +8 dB in the standing area = 1; +8,01 dB in the standing area = 0 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60118-4:2014+A1 Figures 2 and 3 | Measurement points of a refuge and a counter, in millimetres | 2 a) inner radius = 300 mm; 2 a) outer radius = 500 mm; 2 b) l4 = 424 mm; 2 b) l5 = 700 mm; 3 a) radius = 300 mm; 3 a) l4 = 150 mm; 3 b) top height = 1700 mm | 2 a) inner radius = 300 mm; 2 a) outer radius = 500 mm; 2 b) l4 = 424 mm; 2 b) l5 = 700 mm; 3 a) radius = 300 mm; 3 a) l4 = 150 mm; 3 b) top height = 1700 mm | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60118-4:2014+A1 10.2 | Lower end of the 3 dB commissioning window, mA/m | 283 mA/m (+/-0.5 mA/m) | 283.2 mA/m | 0.178 mA/m | 36 % | ![Pass][cv-pass] Pass | | IEC 60118-4:2014+A1 10.2 | Upper end of the 3 dB commissioning window, mA/m | 566 mA/m (+/-1: printed as 400 sqrt(2), 565 at +3 dB) | 565 mA/m | -0.985 mA/m | 98 % | ![Pass][cv-pass] Pass | | IEC 60118-4:2014+A1 Table 4 | Programme material and overload test frequency | transient_speech limit = 1250 Hz; transient_speech test = 2500 Hz; speech limit = 1600 Hz; speech test = 3150 Hz; music limit = 2000 Hz; music test = 4000 Hz | transient_speech limit = 1250 Hz; transient_speech test = 2500 Hz; speech limit = 1600 Hz; speech test = 3150 Hz; music limit = 2000 Hz; music test = 4000 Hz | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60118-4:2014+A1 10.3.2 | Overload test current 7 dB below the one for the required field | -7 dB (+/-0 dB) | -7 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | IEC 60118-4:2014+A1 10.3.2 | Sweep end where the voltage of a 0,69 ohm, 109 uH loop doubles, Hz | 2654.268 Hz, where \|Z\| is twice its 1 kHz value | 2654.268 Hz | 0 Hz | 0 % | ![Pass][cv-pass] Pass | | IEC 60118-4:2014+A1 10.3.3 | No clipping at the Table 4 frequency, judged there when the sweep runs past | compliance at the 2,5 kHz voltage = 1; compliance 0,1 % below it = 0 | compliance at the 2,5 kHz voltage = 1; compliance 0,1 % below it = 0 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60118-4:2014+A1 10.4.7 | System noise: -47 dB ceiling or 1 dB rise | SNR 55 dB, on at -47 dB = 1; SNR 55 dB, on at -46,99 dB = 0; SNR 40 dB, on 1 dB up = 1; SNR 40 dB, on 1,01 dB up = 0; SNR 32,7 dB, on at -31,7 dB = 1 | SNR 55 dB, on at -47 dB = 1; SNR 55 dB, on at -46,99 dB = 0; SNR 40 dB, on 1 dB up = 1; SNR 40 dB, on 1,01 dB up = 0; SNR 32,7 dB, on at -31,7 dB = 1 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60118-4:2014 E.1 | Centre field of a 5 m square loop by Biot-Savart, against 2 sqrt(2) I/(pi d) | 0.54019 A/m (+/-1e-10%) | 0.54019 A/m | 0 A/m | 0 % | ![Pass][cv-pass] Pass | | IEC 60118-4:2014 E.1 | Centre field of a 10 m by 15 m loop with d = sqrt(d1 d2), as E.1 prints it | 0.220532 A/m (+/-1e-10%) | 0.220532 A/m | 0 A/m | 0 % | ![Pass][cv-pass] Pass | | IEC 60118-4:2014 Figure E.2 b) | Horizontal component of a 15 by 10 loop at 1,2 units, 2,5 % across its width | 4.2 dB read off the curve (+/-0,5) | 4.21 dB | 0.011 dB | 2 % | ![Pass][cv-pass] Pass | | IEC 60118-4:2014 Figure E.2 b) | Horizontal component of a 15 by 10 loop at 1,2 units, 30 % across its width | -15.0 dB read off the curve (+/-0,5) | -14.72 dB | 0.28 dB | 56 % | ![Pass][cv-pass] Pass | | IEC 60118-4:2014 Figure E.2 b) | Vertical component of a 15 by 10 loop at 1,2 units, 12,5 % across its width | 1.7 dB read off the curve (+/-0,5) | 1.89 dB | 0.189 dB | 38 % | ![Pass][cv-pass] Pass | | IEC 60118-4:2014 Figure E.2 b) | Vertical component of a 15 by 10 loop at 1,2 units, 50 % across its width | -0.8 dB read off the curve (+/-0,5) | -0.48 dB | 0.32 dB | 64 % | ![Pass][cv-pass] Pass | | IEC 60118-4:2014 Figure H.1 | Current for 400 mA/m 1,4 m above a 10 m loop of aspect ratio 1 | 4.89 A read off the curve (+/-0,03) | 4.884 A | -0.006 A | 20 % | ![Pass][cv-pass] Pass | | IEC 60118-4:2014 Figure H.1 | Current for 400 mA/m 1,4 m above a 10 m loop of aspect ratio 1,5 | 5.64 A read off the curve (+/-0,03) | 5.632 A | -0.008 A | 27 % | ![Pass][cv-pass] Pass | | IEC 60118-4:2014 Figure H.1 | Current for 400 mA/m 1,4 m above a 10 m loop of aspect ratio 2 | 6.04 A read off the curve (+/-0,03) | 6.038 A | -0.002 A | 7 % | ![Pass][cv-pass] Pass | | IEC 60118-4:2014 Figure H.1 | Current for 400 mA/m 1,4 m above a 10 m loop of aspect ratio 3 | 6.41 A read off the curve (+/-0,03) | 6.409 A | -0.001 A | 3 % | ![Pass][cv-pass] Pass | | IEC 60118-4:2014 Figure H.1 | Current for 400 mA/m 1,4 m above a 10 m loop of aspect ratio 5 | 6.63 A read off the curve (+/-0,03) | 6.635 A | 0.005 A | 17 % | ![Pass][cv-pass] Pass | | IEC 62489-1:2010+A1 5.4.10.2 | Loop current for 400 mA/m 1,4 m above a 3-turn 6 m by 2 m loop, by Biot-Savart | 0.4 A/m (+/-1e-10%) | 0.4 A/m | 0 A/m | 0 % | ![Pass][cv-pass] Pass | | IEC 60118-4:2014 E.2 | Telecoil response 45 degrees off axis | -3 dB (+/-0.05 dB) | -3.01 dB | -0.01 dB | 20 % | ![Pass][cv-pass] Pass | | IEC 60118-4:2014 E.2 | Telecoil response 70 degrees off axis | -9.3 dB (+/-0.05 dB) | -9.32 dB | -0.019 dB | 38 % | ![Pass][cv-pass] Pass | | IEC 60118-4:2014 E.3 | Loop impedance over resistance where the reactance equals it | 1.4 (+/-0.015) | 1.414 | 0.014 | 93 % | ![Pass][cv-pass] Pass | | IEC 60118-4:2014 E.6 | One oersted in amperes per metre | 79.58 A/m (+/-0.005 A/m) | 79.577 A/m | -0.003 A/m | 60 % | ![Pass][cv-pass] Pass | | IEC 60118-4:2014 E.6 | Flux density of 1 A/m in air, microtesla | 1,256 µT (+/-0,001: the print truncates 1,2566, see ERRATA) | 1.2566 µT | 0.0006 µT | 60 % | ![Pass][cv-pass] Pass | | IEC 62489-1:2010+A1 Table B.1 | neck loop: resistance, 1/58 ohm mm2/m copper | 0.24 ohm | 0.238 ohm | -0.002 ohm | 40 % | ![Pass][cv-pass] Pass | | IEC 62489-1:2010+A1 Table B.1 | neck loop: impedance at 2 kHz from the printed R and L | 1.09 ohm (+/-0.012 ohm) | 1.095 ohm | 0.005 ohm | 41 % | ![Pass][cv-pass] Pass | | IEC 62489-1:2010+A1 Table B.1 | neck loop: impedance at 5 kHz from the printed R and L | 2.67 ohm (+/-0.021 ohm) | 2.681 ohm | 0.011 ohm | 52 % | ![Pass][cv-pass] Pass | | IEC 62489-1:2010+A1 Table B.1 | counter loop: resistance, 1/58 ohm mm2/m copper | 0.37 ohm (with the 1.6 m its sides give, see ERRATA) | 0.368 ohm | -0.002 ohm | 40 % | ![Pass][cv-pass] Pass | | IEC 62489-1:2010+A1 Table B.1 | counter loop: inductance by Grover's Formula (58), no internal term | 189 µH (+/-0.5 µH) | 189.42 µH | 0.416 µH | 83 % | ![Pass][cv-pass] Pass | | IEC 62489-1:2010+A1 Table B.1 | counter loop: impedance at 2 kHz from the printed R and L | 2.41 ohm (+/-0.012 ohm) | 2.404 ohm | -0.006 ohm | 50 % | ![Pass][cv-pass] Pass | | IEC 62489-1:2010+A1 Table B.1 | counter loop: impedance at 5 kHz from the printed R and L | 5.96 ohm (+/-0.021 ohm) | 5.949 ohm | -0.011 ohm | 52 % | ![Pass][cv-pass] Pass | | IEC 62489-1:2010+A1 Table B.1 | home loop: resistance, 1/58 ohm mm2/m copper | 0.24 ohm | 0.241 ohm | 0.001 ohm | 20 % | ![Pass][cv-pass] Pass | | IEC 62489-1:2010+A1 Table B.1 | home loop: inductance by Grover's Formula (58), no internal term | 22 µH (+/-0.5 µH) | 22.23 µH | 0.232 µH | 46 % | ![Pass][cv-pass] Pass | | IEC 62489-1:2010+A1 Table B.1 | home loop: impedance at 2 kHz from the printed R and L | 0.37 ohm (+/-0.013 ohm) | 0.366 ohm | -0.004 ohm | 31 % | ![Pass][cv-pass] Pass | | IEC 62489-1:2010+A1 Table B.1 | home loop: impedance at 5 kHz from the printed R and L | 0.74 ohm (+/-0.021 ohm) | 0.732 ohm | -0.008 ohm | 37 % | ![Pass][cv-pass] Pass | | IEC 62489-1:2010+A1 Table B.1 | small room: resistance, 1/58 ohm mm2/m copper | 0.32 ohm | 0.322 ohm | 0.002 ohm | 40 % | ![Pass][cv-pass] Pass | | IEC 62489-1:2010+A1 Table B.1 | small room: inductance by Grover's Formula (58), no internal term | 47 µH (+/-0.5 µH) | 47.21 µH | 0.21 µH | 42 % | ![Pass][cv-pass] Pass | | IEC 62489-1:2010+A1 Table B.1 | small room: impedance at 2 kHz from the printed R and L | 0.67 ohm (+/-0.013 ohm) | 0.672 ohm | 0.002 ohm | 15 % | ![Pass][cv-pass] Pass | | IEC 62489-1:2010+A1 Table B.1 | small room: impedance at 5 kHz from the printed R and L | 1.52 ohm (+/-0.021 ohm) | 1.511 ohm | -0.009 ohm | 42 % | ![Pass][cv-pass] Pass | | IEC 62489-1:2010+A1 Table B.1 | typical place of worship: resistance, 1/58 ohm mm2/m copper | 0.69 ohm | 0.69 ohm | 0 ohm | 7 % | ![Pass][cv-pass] Pass | | IEC 62489-1:2010+A1 Table B.1 | typical place of worship: inductance by Grover's Formula (58), no internal term | 109 µH (+/-0.5 µH) | 109.24 µH | 0.237 µH | 47 % | ![Pass][cv-pass] Pass | | IEC 62489-1:2010+A1 Table B.1 | typical place of worship: impedance at 2 kHz from the printed R and L | 1.54 ohm (+/-0.013 ohm) | 1.534 ohm | -0.006 ohm | 47 % | ![Pass][cv-pass] Pass | | IEC 62489-1:2010+A1 Table B.1 | typical place of worship: impedance at 5 kHz from the printed R and L | 3.5 ohm (+/-0.021 ohm) | 3.493 ohm | -0.007 ohm | 33 % | ![Pass][cv-pass] Pass | | IEC 62489-1:2010+A1 Table B.1 | large place of worship: resistance, 1/58 ohm mm2/m copper | 0.76 ohm | 0.759 ohm | -0.001 ohm | 20 % | ![Pass][cv-pass] Pass | | IEC 62489-1:2010+A1 Table B.1 | large place of worship: impedance at 2 kHz from the printed R and L | 2.85 ohm (+/-0.012 ohm) | 2.843 ohm | -0.007 ohm | 56 % | ![Pass][cv-pass] Pass | | IEC 62489-1:2010+A1 Table B.1 | large place of worship: impedance at 5 kHz from the printed R and L | 6.89 ohm (+/-0.021 ohm) | 6.891 ohm | 0.001 ohm | 5 % | ![Pass][cv-pass] Pass | | IEC 60028:1925 clause I | Resistivity of standard annealed copper at 20 degC, from 1 m of 1 mm2 | 0.017241 ohm·mm²/m (+/-1e-10%) | 0.017241 ohm·mm²/m | 0 ohm·mm²/m | 0 % | ![Pass][cv-pass] Pass | | IEC 62489-1:2010+A1 5.4.7.2 | Maximum output current: the voltage across the resistance over its value where the THD reaches its rating | 6.6489 A (+/-1e-10%) | 6.6489 A | 0 A | 0 % | ![Pass][cv-pass] Pass | | IEC 62489-1:2010+A1 5.4.8.2 | Compliance voltage of a sine, the average peak over sqrt(2) | 9.8995 V (+/-0 V) | 9.8995 V | 0 V | 0 % | ![Pass][cv-pass] Pass | | IEC 62489-1:2010+A1 5.4.14.1 | In-phase part of a quadrature network at 85 degrees | 0.087 (+/-0.0005) | 0.0872 | 0.0002 | 40 % | ![Pass][cv-pass] Pass | | IEC 62489-1:2010+A1 5.4.14.1 | Rise where the fields add at 85 degrees | 0.72 dB (+/-0.01 dB) | 0.726 dB | 0.006 dB | 60 % | ![Pass][cv-pass] Pass | | IEC 62489-1:2010+A1 5.4.14.1 | Fall where the fields subtract at 85 degrees | -0.792 dB, 20 lg(1 - cos 85) (printed as 0,72 dB, see ERRATA) | -0.792 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | E DIN EN 62489-1/A2:2017-10 Annex D, D.1.2 and D.1.3 | Neck-loop types of the draft: DC resistance and input voltage for 400 mA/m | type 1 at -5 % = 1; type 1 at +5 % = 1; type 1 at +5,1 % = 0; type 2 at 32 ohm = 1; type 2 below 32 ohm = 0; 1,07 V for 400 mA/m = 0 | type 1 at -5 % = 1; type 1 at +5 % = 1; type 1 at +5,1 % = 0; type 2 at 32 ohm = 1; type 2 below 32 ohm = 0; 1,07 V for 400 mA/m = 0 | exact | 0 % | ![Pass][cv-pass] Pass |

Headphones and the programme signal (IEC 60268-7:2010, IEC 60268-1:1985): 100% (26/26)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | IEC 60268-1:1985 Table II | The 31 bands of the simulated programme signal, as published | 31/31 bands of Table II | 31/31 bands of Table II | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60268-1:1985 Clause 7 Note | Power over the full range above the 0 dB of one band | approximately 12.5 dB | 12.56 dB | 0.058 dB | 58 % | ![Pass][cv-pass] Pass | | IEC 60268-1:1985 Figure 2 | Pink noise through the filter of Figure 2 inside every tolerance of Table II | one level puts all 31 bands inside Table II | smallest margin 0.178 dB, at 400 Hz and 5000 Hz | headroom 0.178 dB | - | ![Pass][cv-pass] Pass | | IEC 60268-1:1985 Table II | Band levels of the generator's Table II density, integrated numerically | 0 dB from every printed level | largest difference 5.7e-10 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | IEC 60268-1:1985 Clause 7 | A 60 s record of the generator judged in one-third-octave bands | all 31 bands inside Table II | smallest margin 0.371 dB | headroom 0.371 dB | - | ![Pass][cv-pass] Pass | | IEC 60268-7:2010 Clause 4 | Impedance in mantissa and exponent form: 8, 32 and 600 ohm both ways | 3/3 printed codes ("08R0", "32R0", "06R2") | 3/3 printed codes | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60268-7:2010 8.2.1 b) | Lowest modulus in the rated range at 80 % and at 79,9 % of the rated value | 80 % passes, 79,9 % fails | 80 % = 1; 79.9 % = 0 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60268-7:2010 8.3.3 | Characteristic voltage from 100 dB at 0,1 V: the e.m.f. for 94 dB | 0.050119 V (+/-0 V) | 0.050119 V | 0 V | 0 % | ![Pass][cv-pass] Pass | | IEC 60268-7:2010 8.5.2 b) with 7.1 NOTE | Source e.m.f. for 1 mW in 32 ohm through the 120 ohm of IEC 61938 | 0.849706 V (+/-0 V) | 0.849706 V | 0 V | 0 % | ![Pass][cv-pass] Pass | | IEC 60268-7:2010 8.5.2 b) and 8.5.3 c) | Working level of a 32 ohm headphone that is 40 ohm at 500 Hz, on 120 ohm | 20 lg(4.75/4) = 1.4927 dB below the definition | 1.4927 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | IEC 60268-7:2010 8.4 with 8.3.1 NOTE 2 | Power of the 5 V rated source e.m.f. in 32 ohm through 120 ohm | 0.034626 W (+/-0 W) | 0.034626 W | 0 W | 0 % | ![Pass][cv-pass] Pass | | IEC 60268-7:2010 Figure 3 NOTE with IEC 61672-1:2013 Table 3 | A-weighting coefficient of each band of Table II in the power summation | 31/31 bands matching Table 3 | 31/31 bands matching Table 3 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60268-7:2010 8.3.4, Figure 3 NOTE | Programme characteristic voltage of a flat headphone, 21 bands at 80 dB from 0,1 V | 0.109368 V (+/-0 V) | 0.109368 V | 0 V | 0 % | ![Pass][cv-pass] Pass | | IEC 60268-7:2010 8.3.5 g) | Corrected characteristic voltage, the mean e.m.f. of three fittings | 0.109852 V (+/-0 V) | 0.109852 V | 0 V | 0 % | ![Pass][cv-pass] Pass | | IEC 60268-7:2010 8.3.2.2 b) | Clipped programme signal at the two ends of the 1,8 to 2,2 window | 1,8 and 2,2 pass with the Table II spectrum; 1,7, 2,3 and unclipped fail | 1.7 = 0; 1.8 = 1; 2.2 = 1; 2.3 = 0; unclipped = 0 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60268-7:2010 8.3.6.2 b) | Protection voltage where the sensitivity has changed 1 dB | 1.007937 V (+/-0 V) | 1.007937 V | 0 V | 0 % | ![Pass][cv-pass] Pass | | IEC 60268-7:2010 8.6.3.2 d), 8.6.3.3 | Panel sizes: eight persons for a measurement, 16 for a reference | 8 persons measure, 16 qualify a reference | 7 measure = 0; 7 reference = 0; 8 measure = 1; 8 reference = 0; 15 measure = 1; 15 reference = 0; 16 measure = 1; 16 reference = 1 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60268-7:2010 8.6.3.1 with IEC 60268-1:1985 Clause 3 | Comparison response referred to the standard reference frequency of 1 000 Hz | 1 000 Hz by default, and 0 dB on that band | reference = 1000; response there = 0 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60268-7:2010 8.6.5.3 with 8.6.5.2 h) | Ear canal panel: eight persons for a measurement, 16 to calibrate a reference | 8 persons measure, 16 calibrate a reference | 7 measure = 0; 7 reference = 0; 8 measure = 1; 8 reference = 0; 15 measure = 1; 15 reference = 0; 16 measure = 1; 16 reference = 1 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60268-7:2010 8.6.5.2 g), Formula (1) | Ear canal response of a headphone 3 dB up at 2 kHz and level elsewhere | 3 dB (+/-0 dB) | 3 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | IEC 60268-7:2010 8.6.5.2 c) and f) | Fittings 2,5 dB apart and a 500 Hz band 3 dB off, inclusive | 2,5 dB and 3 dB are inside, 2,6 dB and 3,1 dB not | 2.5 dB apart = 1; 2.6 dB apart = 0; 3.0 dB off = 1; 3.1 dB off = 0 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60268-7:2010 8.7.3.3 NOTE 1 | Level of the 70 Hz tone re the rated input voltage | -1.9 dB (+/-0.05 dB) | -1.94 dB | -0.038 dB | 76 % | ![Pass][cv-pass] Pass | | IEC 60268-7:2010 8.7.3.3 NOTE 1 | Level of the 600 Hz tone re the rated input voltage | -14 dB (+/-0.05 dB) | -13.98 dB | 0.021 dB | 42 % | ![Pass][cv-pass] Pass | | IEC 60268-7:2010 8.7.3.3 b) and Formula (3) | Modulation products read at 530, 670, 460 and 740 Hz | 460, 530, 670 and 740 Hz (item b; Formula (3) prints 470 Hz, see ERRATA) | third lower = 460 Hz; second lower = 530 Hz; second upper = 670 Hz; third upper = 740 Hz | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60268-7:2010 8.7.4.1 | Each tone of the difference-frequency signal at half the rated voltage | -6.021 dB each, 80 Hz apart | -6.021 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | IEC 60268-7:2010 Annex B a) to e) | A probe microphone on each printed limit | a, d, e pass on the limit; b, c fail on it | a = 1; b = 0; c = 0; d = 1; e = 1 | exact | 0 % | ![Pass][cv-pass] Pass |

Industrial noise control: 100% (23/23)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | Bies 5e Eq. (8.111) | Expansion-chamber peak TL = 10 lg[1 + (1/4)(m - 1/m)^2], m = 4 at kL = pi/2 | 6.5472 dB (+/-0 dB) | 6.5472 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | Bies 5e Eq. (8.111) | Expansion-chamber trough TL = 0 at kL = pi (chamber transparent) | 0 dB (+/-0 dB) | 0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | Bies 5e Eq. (8.44) / Example 8.1 | Quarter-wave tube tuning f = c/(4 l_e), l_e = 1.516 m -> 56.6 Hz | 56.6 Hz (+/-0.1 Hz) | 56.6 Hz | 0.003 Hz | 3 % | ![Pass][cv-pass] Pass | | Bies 5e Eq. (8.46) | Helmholtz resonance f0 = (c/2pi) sqrt(S/(l_e V)) (S=1e-4, l_e=0.02, V=1e-3) | 122.067 Hz (+/-0 Hz) | 122.067 Hz | 0 Hz | 0 % | ![Pass][cv-pass] Pass | | Bies 5e Eq. (8.73) | Side-branch TL = 20 lg abs(1 + rho c/(2 Sd Zb)) (QWT branch, closed form) | 0.1638 dB (+/-0 dB) | 0.1638 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | Bies 5e Eqs. (8.141)/(8.148) (four-pole insertion loss) | Insertion loss = transmission loss for the anechoic reference Zs=Zr=rho c/S | 6.2498 dB (= TL) | 6.2498 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | Bies 5e Eq. (8.275) (Wells' plenum method) | Plenum TL = -10 lg[S_out(cos0/pi r^2 + (1-a)/(Sw a))] (S_out=.1,r=1,Sw=20,a=.2) | 12.8541 dB (+/-0 dB) | 12.8541 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | Bies 5e Table 8.14 (ASHRAE end reflection, flush) | Duct end reflection D = 200 mm at 125 Hz = 10 dB (table node) | 10 dB (+/-0 dB) | 10 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | Long 2e Eq. 13.1 with Table 13.5 (ASHRAE 1987 fan model) | Forward-curved fan at Q_REF, P_REF, peak efficiency -> K_F + C_BFI at 500 Hz | 38 dB (+/-0 dB) | 38 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | Long 2e Eq. 14.12 with Table 14.2 (Reynolds lined rectangular duct) | 18 x 12 in duct, 6 ft, 1 in lining at 1 kHz -> 1.77 (10/3)^0.695 6 dB | 24.5203 dB (+/-0 dB) | 24.5203 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | Long 2e Table 14.4 (ASHRAE 1995 lined flexible duct) | 8 in diameter, 9 ft long -> 6/8/16/25/28/28/18 dB (table node) | 0 dB (max \|diff\| over the 7 bands) | 0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | Long 2e Eq. 14.17 (branch power division) | 25 per cent split with area-matched branches -> -10 lg 0.25 = 6.02 dB | 6.0206 dB (+/-0 dB) | 6.0206 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | Long 2e Table 14.9 (worked duct-borne sheet, supply path) | Fan to room, 8 octave bands -> 52/42/30/18/9/-2/-2/-1 dB at the receiver | 0 dB +/-1 (max \|diff\| over the 8 bands) | 1 dB | 1 dB | 100 % | ![Pass][cv-pass] Pass | | Long 2e Eqs. 13.27-13.33 (Reynolds diffuser self-noise) | 24 x 24 in rectangular diffuser, 312 cfm, 0.05 in pd -> the 33/32/29/23/15 dB row of Table 14.9 | 0 dB +/-1 (max \|diff\| over the five bands) | 0.8853 dB | 0.8853 dB | 89 % | ![Pass][cv-pass] Pass | | ASHRAE 2019 Applications Ch. 49 Table 9 | Max neck velocity of a supply outlet for design RC(30) -> 2.2 m/s | 2.2 m/s (+/-0 m/s) | 2.2 m/s | 0 m/s | 0 % | ![Pass][cv-pass] Pass | | Norton & Karczub 2e Eqs. 7.6/7.8/7.9 (problem 7.1 answer) | 254 mm duct, steam, 200 m/s: (1,0) cut-on 812 Hz and k_x = -8.23 1/m | 0 +/-1 (Hz, and 1/m x100) | 0.591 | 0.591 | 59 % | ![Pass][cv-pass] Pass | | Norton & Karczub 2e Eq. 7.10 (problem 7.2 answer) | 0.65 x 0.4 m duct, 15 m/s: first three cut-on 264 / 428 / 503 Hz | 0 Hz (max \|diff\| over the 3 modes) | 0 Hz | 0 Hz | 0 % | ![Pass][cv-pass] Pass | | Bies 5e Eqs. (7.103), (7.111) (enclosure, fully absorbing limit) | Enclosure correction C -> 10 lg 0.3 = -5.23 dB as alpha_i -> 1 | -5.2288 dB (+/-0.001 dB) | -5.2288 dB | 0 dB | 2 % | ![Pass][cv-pass] Pass | | Norton & Karczub 2e Eq. (4.101) (problem 4.21 answer) | Double brick wall into an 8 x 9 x 3 m room -> NR 37.5/40.8/49.0/62.8/65.3/65.9 dB | 0 dB +/-0.05 (max \|diff\| over the 6 bands) | 0.0308 dB | 0.0308 dB | 62 % | ![Pass][cv-pass] Pass | | Norton & Karczub 2e 4.6/4.9 (problem 4.18 answer) | Blower in a plant room to the operator room -> 72.3/60.4/41.4/41.0/33.8/30.7 dB | 0 dB +/-0.1 (max \|diff\| over the 6 bands) | 0.0682 dB | 0.0682 dB | 68 % | ![Pass][cv-pass] Pass | | Barron (2003) Example 7-6 with Eqs. (7-71) and (7-72), printed folios 297 and 298, PDF pages 309 and 310 | Refiner room to an operator 1.5 m from a 16 m2 wall (inside r* = 1.596 m) -> L_p2 = 61.7 dB | 61.7 dB (+/-0.05 dB) | 61.75 dB | 0.047 dB | 94 % | ![Pass][cv-pass] Pass | | Norton & Karczub 2e Eq. (4.115) (problem 4.16 answer) | Lined compressor enclosure against NC-45 -> required TL 14.4/25.2/28.9/34.4/35.2/34.7/34.7/31.6 dB | 0 dB +/-0.15 (max \|diff\| over the 8 bands) | 0.1099 dB | 0.1099 dB | 73 % | ![Pass][cv-pass] Pass | | Norton & Karczub 2e Table 4.5 (constant-volume source power) | Source in the intersection of two flat surfaces (Q = 4) -> +10 lg 4 = 6.02 dB | 6.0206 dB (+/-0 dB) | 6.0206 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass |

Enclosure and cabin insulation: 100% (43/43)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ISO 11546-1:1995 Eq. (1) / ISO 11546-2:1995 Eq. (1) | D_W is the difference of the two sound power determinations, and a level shift common to both leaves it alone | 0 dB (+/-0 dB) | max absolute difference 0.000 dB over 18 bands | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 11546-1:1995 Annex C / ISO 11546-2:1995 Annex D | D_WA,e of the annex equals the difference of the two A-weighted totals computed from the same assumed spectrum | 16.3145 dB (+/-0 dB) | 16.3145 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 11546-1:1995 Annex C / ISO 11546-2:1995 Annex D | An enclosure of no insulation at all estimates exactly 0 dB, which is the sign test of the A-weighting term A_i | 0 dB (+/-0 dB) | 0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 11546-2:1995 Figure C.1 | The area ratio S_V/S the closed form returns puts K_2 back on the Table C.1 limit, at every absorption coefficient of Table C.2 | 0 dB (+/-0 dB) | max deviation below 1e-12 dB over the 7 rows of Table C.2 | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 11546-2:1995 Table C.1 | Environmental correction ceiling K_2 and background margin dL of the nine columns | ISO 3743-1 dL = 6 dB; ISO 3744 K2 = 2 dB; ISO 3744 dL = 6 dB; ISO 3746 K2 = 7 dB; ISO 3746 dL = 3 dB; ISO 3747 dL = 3 dB; ISO 11201 K2 = 2 dB; ISO 11201 dL = 6 dB; ISO 11202 K2 = 7 dB; ISO 11202 dL = 3 dB; ISO 11204 K2 = 7 dB; ISO 11204 dL = 6 dB | ISO 3743-1 dL = 6 dB; ISO 3744 K2 = 2 dB; ISO 3744 dL = 6 dB; ISO 3746 K2 = 7 dB; ISO 3746 dL = 3 dB; ISO 3747 dL = 3 dB; ISO 11201 K2 = 2 dB; ISO 11201 dL = 6 dB; ISO 11202 K2 = 7 dB; ISO 11202 dL = 3 dB; ISO 11204 K2 = 7 dB; ISO 11204 dL = 6 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 11546-2:1995 Table C.2 | The seven room descriptions, word for word, under the mean absorption coefficient each of them is printed against | 7/7 rows of Table C.2 | 7/7 rows of Table C.2 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 11546-2:1995 Table 1 | The survey methods give an A-weighted value only, so no band quantity may be declared from them | ISO 3744 bands, ISO 3746 none, ISO 11202 none, ISO 11204 bands | ISO 3744 bands, ISO 3746 none, ISO 11202 none, ISO 11204 bands | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 11546-1:1995 Table 1 | The laboratory table carries no survey-grade row, and its footnote 2 excludes the grade 3 variant of ISO 9614-1 and ISO 11204 | no survey row, the three reverberation rows, footnote 2 on two | 3/3 readings of Table 1 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 11957:1996 Eq. (1) and Eq. (2) | D_p and D'_p are the same subtraction, and only the method decides whether the answer carries the prime | 0 dB (+/-0 dB) | max absolute difference 0.000 dB, D_p and D'_p | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 11957:1996 Annex A | D_pA,e of the annex equals the difference of the two A-weighted totals, the same identity as the enclosure annexes | 19.7652 dB (+/-0 dB) | 19.7652 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 11957:1996 6.2 | Cabin clearance: half a wavelength at 100 Hz is 1,715 m at 343 m/s, and the 50 Hz to 80 Hz range takes a flat 2 m | 100 Hz = 1.715 m; 80 Hz = 2 m; 63 Hz = 2 m; 50 Hz = 2 m | 100 Hz = 1.715 m; 80 Hz = 2 m; 63 Hz = 2 m; 50 Hz = 2 m | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 11957:1996 6.4 and 7.2.1 | Source-spectrum flatness: 6 dB in the 125 Hz octave, 5 dB in the 250 Hz octave and 4 dB above | 125 Hz = 6 dB; 250 Hz = 5 dB; 500 Hz = 4 dB | 125 Hz = 6 dB; 250 Hz = 5 dB; 500 Hz = 4 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 11957:1996 7.2.1 | Source positions: at least the largest deviation of D'_p between any two positions in octave bands, three at least and six at most | 6 positions for a 9,5 dB spread, capped at six | 6 positions for 9.5 dB | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 11957:1996 6.7 | The internal noise level is corrected for the background only while the margin lies between 6 dB and 10 dB | margin 8 dB = 59.2506 dB; margin 15 dB = 60 dB | margin 8 dB = 59.2506 dB; margin 15 dB = 60 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 11957:1996 clause 10 | The stated uncertainty needs a room at least 20 times the volume of the cabin, and the loudspeaker method in situ adds about 2 dB | volume ratio = 20; excess deviation = 2 | volume ratio = 20; excess deviation = 2 | exact | 0 % | ![Pass][cv-pass] Pass | | NPL CIRA(EXT) 009 (1996) Tables 8 to 14, PDF pp. 19 to 24, printed folios 15 to 20 | The environmental correction taken from a room's printed volume and A-weighted reverberation time reproduces all 17 values measured in five real rooms | 17/17 (worst departure 0.08 dB) | 17/17 printed values of K_2A, from 1,1 dB to 8,4 dB | exact | 0 % | ![Pass][cv-pass] Pass | | NPL CIRA(EXT) 009 (1996) Tables 9 to 14, PDF pp. 20 to 24, printed folios 16 to 20 | Annex C calls a room fit for ISO 3746 exactly where the measured environmental correction stays under the 7 dB of Table C.1, in all 17 configurations | 17/17, reading the absorption at the upper end of each printed range | 17/17 verdicts that agree with the measurement | exact | 0 % | ![Pass][cv-pass] Pass | | NPL CIRA(EXT) 009 (1996) Tables 9 to 14, PDF pp. 20 to 24, printed folios 16 to 20 | At the 2 dB ceiling ISO 3744 is given, the annex agrees with 13 of the same 17 measurements, and the four it refuses are the hemi-anechoic room the report says the table of room descriptions cannot reach | 13 of 17, the four that differ being room A, which is hemi-anechoic and so more absorbent than the 0,5 the table stops at | 13 of 17, differing at A1, A2, A3, A4 | 0 | 0 % | ![Pass][cv-pass] Pass | | NPL CIRA(EXT) 009 (1996) Tables 6 and 9, PDF pp. 15 and 20, printed folios 11 and 16 | Room E is printed with two different boundary areas, and only the one Table 9 pairs with the volume and the reverberation time puts the annex back on the measurement | all three surfaces judged as measured, from the 358 m2 of Table 9 | 3 of 3 with Table 9, and 1 of 3 with the 258 m2 Table 6 prints for the same room | 0 | 0 % | ![Pass][cv-pass] Pass | | NPL CIRA(EXT) 009 (1996) Tables 10 to 14, PDF pp. 22 to 24, printed folios 18 to 20 | The estimated room absorption column of the study does not follow the study's own Eq. (3): every one of its 17 cells sits more than 0,4 dB away from it, so that column is no oracle for this library | 17/17 (closest approach 0.45 dB) | 17/17 printed cells Eq. (3) does not reach | exact | 0 % | ![Pass][cv-pass] Pass | | Heisterkamp (2024) Table 3, PDF p. 10, printed folio 186 | The environmental correction from a mean absorption coefficient and a boundary area reproduces the six values three test engineers reached for one workroom | 6/6 (worst departure 0.05 dB) | 6/6 printed values of K_2A | exact | 0 % | ![Pass][cv-pass] Pass | | Heisterkamp (2024) Table 3, PDF p. 10, printed folio 186 | Annex C puts the same workroom outside ISO 11202 on the first two assessments and inside it on the third, which is where their printed K_2A falls against the 7 dB of Table C.1 | 6/6, the tightest of them sitting 0,09 dB over the 7 dB ceiling | 6/6 verdicts that agree with the printed K_2A | exact | 0 % | ![Pass][cv-pass] Pass | | Heisterkamp (2024) Table 4, PDF p. 11, printed folio 187 | The environmental correction taken from an absorption area measured with a reference sound source reproduces all six printed values, in two rooms and on three measurement surfaces | 6/6 (worst departure 0.04 dB) | 6/6 printed values of K_2A | exact | 0 % | ![Pass][cv-pass] Pass | | Barron (2003) Example 7-8, PDF pp. 321 and 323, printed folios 309 and 311 | The two A-weighted totals of that example on their own, 108,4 dBA without the enclosure and 89,8 dBA with it, which is where the weighting table shows and the difference of the two hides it | both totals within the one decimal the book prints | without the enclosure 108.38 dBA, with the enclosure 89.79 dBA, worst departure 0.025 dB | 0.0248 dBA | 50 % | ![Pass][cv-pass] Pass | | Peters, Smith and Hollins, Acoustics and Noise Control 3rd ed, Example 1.13, PDF pp. 31 and 32, printed folios 16 and 17 | One enclosure, one measured band attenuation, two source spectra: the Annex D estimate gives 14 dBA against one machine and 27 dBA against the other, which is why the annex calls it an estimate | machine A = 14 dBA; machine B = 27 dBA | machine A = 13.90 dBA, machine B = 26.92 dBA, a spread of 13.0 dB | exact | 0 % | ![Pass][cv-pass] Pass | | Schirmer (2006) 10.8.1, PDF pp. 323 and 324, printed folios 303 and 304 | ISO 11546-1:1995 3.16 / ISO 11546-2:1995 3.14: the leak ratio of an enclosure with a 0,25 m2 opening in 95,75 m2 of wall, taken over the interior surface with the opening counted in, against the printed q = 2,6e-3 | q = 2,6e-3 (+/-5e-5, half of the last digit printed) | 0.002604 | 0.000004 | 8 % | ![Pass][cv-pass] Pass | | IFA-LSA 01-243 (2014) Anhang, Beispiele 1 and 3, PDF pp. 22, 23 and 25, printed folios 22, 23 and 25 | The A-weighted insulation of two enclosures measured where they stand, at a punching machine and at an emery machine, which pins the order of the subtraction against real installations | punching machine, Beispiel 1 = 20 dB; emery machine, Beispiel 3 = 20 dB | punching machine, Beispiel 1 = 20 dB; emery machine, Beispiel 3 = 20 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 11957:1996 6.4 with ISO 3741:2010 9.1.2, Equation (14) and its clamps (PDF pp. 28 and 29, printed folios 19 and 20) | The background correction 6.4 delegates, at the two clamp points ISO 3741 prints: 1,26 dB for a 6 dB margin and 0,46 dB for a 10 dB one | the printed 1,26 dB and 0,46 dB, to the two decimals folio 20 prints them at (+/-0,005 dB, half of that last digit) | worst departure 0.0037 dB over the three bands, which re-evaluate Equation (14) at the clamped margin instead of taking the rounded constant the clause writes | 0.0037 dB | 74 % | ![Pass][cv-pass] Pass | | ISO 11957:1996 6.4 and 6.7 with ISO 3741:2010 9.1.2 (PDF p. 29, printed folio 20) | The two clauses that spend that correction: the internal noise level at the two edges of its 6 dB to 10 dB window, and the insulation of 6.4 | 80 - 1,26 and 80 - 0,46 for L_pA, and 31,26 / 30,46 / 31,26 for D_p (+/-0,005 dB, half of the last digit printed) | worst departure 0.0037 dB over the five values | 0.0037 dB | 74 % | ![Pass][cv-pass] Pass | | ISO 11957:1996 clause 8 with ISO 717-1:2013 Annex C, Table C.1 (PDF p. 24, printed folio 16) | Clause 8 is ISO 717-1 with D_p written where that standard writes R, so its printed example rates 30 (-2; -3) dB on an unfavourable sum of 31,8 dB | D_p,w = 30 dB; C = -2 dB; Ctr = -3 dB; unfavourable sum = 31.8 dB | D_p,w = 30 dB; C = -2 dB; Ctr = -3 dB; unfavourable sum = 31.8 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 11957:1996 Annex A with ISO 717-1:2013 Annex C, Table C.1 (PDF p. 24, printed folio 16) | The summation term of the Annex A estimate against the two printed sums, 28,308 dB and 26,859 dB, over sixteen bands each | the printed -10 lg of the two sums, 28,308 dB and 26,859 dB. The table truncates rather than rounds, which its ellipsis says, so a correct value sits at or above each and within 0,001 dB of it | departures +0.000551 dB and +0.000986 dB over the two spectra | headroom 0.000014 dB | 97 % | ![Pass][cv-pass] Pass | | ISO 11957:1996 clause 8 in SGS-CSTC report SDHL260400706101HI (2026), PDF p. 3, printed folio 3 of 4 | A meeting pod measured in a 200 m3 reverberation room and rated by the issuing laboratory at D_p,w = 32 dB | D_p,w = 32 dB, the integer the report prints | D_p,w = 32 dB on an unfavourable sum of 22.9 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 11957:1996 clause 8 in AGH report 5.5.130. (2023), PDF p. 10, printed folio 10 of 10 | An acoustic booth measured in a 180,4 m3 reverberation room and rated by the issuing laboratory at D_p,w = 22 dB | D_p,w = 22 dB, the integer the report prints | D_p,w = 22 dB on an unfavourable sum of 29.7 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 11957:1996 clause 8 in AGH report 5.5.130.680 (2017), PDF p. 11, printed folio 11 of 12 | A telephone booth whose insulation is tabulated to whole decibels, rated by the issuing laboratory at D_p,w = 30 dB | D_p,w = 30 dB, the integer the report prints | D_p,w = 30 dB on an unfavourable sum of 23.0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 11957:1996 Annex A with Barron (2003) Example 7-8, Table 7-5, PDF pp. 319 to 323, printed folios 307 to 311 | The A-weighted estimate over six octave bands: the two totals the example prints, 108.4 dBA and 89.8 dBA, are 18.6 dB apart | 108.4 dBA less 89.8 dBA, each printed to a tenth, so the difference carries a tenth of its own (+/-0.1 dB) | 18.582 dB | -0.018 dB | 18 % | ![Pass][cv-pass] Pass | | Barron (2003) Table 7-5, PDF p. 320, printed folio 308 | ISO 11546-1:1995 Eq. (3): D_p band by band from the two printed sound pressure spectra, against the printed insertion loss row | 6/6 (worst departure 7.1e-15 dB) | 6/6 printed values of the insertion loss row | exact | 0 % | ![Pass][cv-pass] Pass | | Barron (2003) Example 7-8, PDF pp. 321 and 323, printed folios 309 and 311 | ISO 11546-1:1995 Eq. (4): D_pA from the same two band spectra, against the difference of the printed 108.4 dBA and 89.8 dBA | 18.6 dB (+/-0.1 dB) | 18.58 dB | -0.018 dB | 18 % | ![Pass][cv-pass] Pass | | Barron (2003) Example 7-8, PDF pp. 320 to 323, printed folios 308 to 311 | ISO 11546-1:1995 Annex C: the estimate formed from the unenclosed spectrum and the printed insertion loss lands on the same printed difference of A-weighted levels | 18.6 dB (+/-0.1 dB) | 18.58 dB | -0.018 dB | 18 % | ![Pass][cv-pass] Pass | | Barron (2003) Table 7-5, PDF p. 320, printed folio 308 | ISO 11546-1:1995 Eq. (1): D_W from the printed sound power levels with and without the enclosure, in the five bands where the table closes on itself | 5/5 (worst departure 5.3e-15 dB) | 5/5 printed values of the insertion loss row | exact | 0 % | ![Pass][cv-pass] Pass | | Harris (1991) Figures A3-2 and A3-8, PDF pp. 135 and 141, printed folios 125 and 131 | ISO 11546-1:1995 Annex C: the A-weighted reduction of four enclosure cases, within the decibel the book's own pairwise addition costs | 4/4 (worst departure 0.71 dB) | 4/4 printed A-weighted reductions | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 717-1:2020 Annex C, Table C.1, PDF p. 23, printed folio 17 | ISO 11546-1:1995 7.4 rates D_W the way ISO 717-1 rates R, and the printed calculation example reads through that pass-through unchanged | rating = 30 dB; C = -2 dB; Ctr = -3 dB; unfavourable sum = 31.8 dB | rating = 30 dB; C = -2 dB; Ctr = -3 dB; unfavourable sum = 31.8 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 80000-1:2009 Annex B, B.2 and B.3, PDF pp. 43 and 44, printed folios 35 and 36 | ISO 11546-1:1995 9.4 states every result rounded to the nearest integer and names no rule; the rule this rounding follows is Rule A, the even multiple, which the annex calls generally preferable | 8/8 printed roundings of Annex B, two of them ties | 8/8 printed roundings of Annex B, two of them ties | exact | 0 % | ![Pass][cv-pass] Pass | | Suva 66026.d (2010) 6.2.1, PDF p. 17, printed folio 15 | ISO 11546-1:1995 Eq. (2): the A-weighted total of an octave sound power spectrum, read as the insulation against a reference that carries its energy in the 1 kHz band alone | 104 dB, the integer the guide prints | 104.23 dB | 0.226 dB | 45 % | ![Pass][cv-pass] Pass |

In-situ measurement of silencers, screens and barriers: 100% (61/61)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ISO 11820:1996 Table 1 | The stepped background correction, dB to subtract, over the eight printed rows | 3 dB = 3 dB; 4 dB = 2 dB; 5 dB = 2 dB; 6 dB = 1 dB; 7 dB = 1 dB; 8 dB = 1 dB; 9 dB = 0.5 dB; 10 dB = 0.5 dB | 3 dB = 3 dB; 4 dB = 2 dB; 5 dB = 2 dB; 6 dB = 1 dB; 7 dB = 1 dB; 8 dB = 1 dB; 9 dB = 0.5 dB; 10 dB = 0.5 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 11820:1996 Table 1 | The printed table is a rounded version of the logarithmic subtraction and departs from it by under 0,35 dB | under 0,35 dB over the eight rows | largest departure 0.349 dB | 0.3491 dB | 100 % | ![Pass][cv-pass] Pass | | ISO 11820:1996 Eq. (19) | The transmission loss is unmoved by a level shift common to both sides of the silencer | 0 dB (+/-0 dB) | max absolute difference 0.000 dB over 6 bands | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 11820:1996 Eqs. (20) and (22) | The temperature field correction is 5 lg of the ratio of the two absolute temperatures, and vanishes when they agree | 0 dB (+/-0 dB) | 0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 11820:1996 Eqs. (6), (10) and (12) | A quarter of the Sabine absorption as an area, 6 ln 10 V / (c T), at the printed c = 340 m/s | 10.1585 m² (+/-0 m²) | 10.1585 m² | 0 m² | 0 % | ![Pass][cv-pass] Pass | | ISO 11820:1996 Eqs. (15) and (16) | The upstream distance is 1,5 equivalent diameters and the downstream one is 12 sqrt(S_d) less 10 sqrt(S_f) | 0 m (+/-0 m) | 0 m | 0 m | 0 % | ![Pass][cv-pass] Pass | | ISO 11820:1996 Eq. (29) | The gas density with the printed R/M = 287 for air and p_amb = 100 kPa | 1.1892 kg/m³ (+/-0 kg/m³) | 1.1892 kg/m³ | 0 kg/m³ | 0 % | ![Pass][cv-pass] Pass | | ISO 11820:1996 Figure 1 and 9.1.3 | The twenty installations, sixteen for transmission and four for insertion, with the area rule each of them takes | 20/20 installations | 20/20 installations | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 11820:1996 9.1.5 | The permitted conversion folds three one-third-octave levels into their octave on the energy, and is not the fold of a level difference | the energy fold, distinct from the ISO 11691 one | 1/1 readings of 9.1.5 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 11820:1996 9.1.5 / ISO 14163:1998 Table B.1, PDF page 47, folio 47 | The three spectra of the sister standard's worked conversion fold to the 63 Hz octave levels it prints | six octave levels inside the half decibel the printed integers allow | worst departure 0.424 dB | 0.4243 dB | 85 % | ![Pass][cv-pass] Pass | | ISO 11820:1996 9.1.5 / ISO 14163:1998 Table B.1, PDF page 47, folio 47 | The printed octave attenuation of each spectrum, which is the difference of the two folded levels and not the fold of the difference | laboratory pink noise = 7 dB; axial fan = 12 dB; centrifugal fan = 5 dB | laboratory pink noise = 7 dB; axial fan = 12 dB; centrifugal fan = 5 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 11820:1996 Eq. (2) / Holgado Palacios (2014) Tabla XL, PDF page 149, folio 121 | The energy mean of six microphone positions, over the twenty-one bands of a measured silencer test | all 21 bands inside the 0,05 dB the printed tenth allows | worst departure 0.049 dB | 0.0487 dB | 97 % | ![Pass][cv-pass] Pass | | ISO 11820:1996 Eq. (21) / Holgado Palacios (2014) Tablas LXIV to LXVI, PDF pages 173, 176 and 178, folios 145, 148 and 150 | The insertion loss of three silencers measured in place, sixty-three bands of the level difference and the area term | all 63 bands inside the rounding of the printed inputs | worst departure 0.118 dB | 0.1177 dB | 78 % | ![Pass][cv-pass] Pass | | ISO 11820:1996 Eqs. (17) and (18) / Barron (2003) Table 3-4, PDF page 84, folio 72 | The energy subtraction at one measuring point, over the twenty-two printed margins from 1 dB to 20 dB | all 22 rows inside the 0,05 dB the printed tenth allows | worst departure 0.050 dB | 0.0496 dB | 99 % | ![Pass][cv-pass] Pass | | ISO 11820:1996 Eqs. (17) and (18) / Bies, Hansen and Howard (2017) Example 1.4, PDF page 65, folio 36, and Barron (2003) Example 3-6, PDF page 85, folio 73 | Two worked background subtractions at a single point, each printed to the tenth of a decibel | Bies 1.4, 92,0 dB over 88,0 dB = 89.8 dB; Barron 3-6, 83 dB over 77 dB = 81.7 dB | Bies 1.4, 92,0 dB over 88,0 dB = 89.8 dB; Barron 3-6, 83 dB over 77 dB = 81.7 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 11820:1996 Eqs. (2) and (5) / Barron (2003) Example 3-4, PDF pages 77 and 78, folios 65 and 66 | The energy mean of nine levels on a measurement surface, and the 10 lg (S/S0) of the 24,56 m2 that surface encloses | mean of nine levels = 80.4 dB; 10 lg (S/S0) at 24,56 m2 = 13.9 dB | mean of nine levels = 80.4 dB; 10 lg (S/S0) at 24,56 m2 = 13.9 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 11820:1996 Eq. (5) / Barron (2003) Example 3-3, PDF pages 72 to 74, folios 60 to 62 | A sound power from a mean level, a measurement area and a field correction, all three terms together | 90.4 dB (+/-0.05 dB) | 90.38 dB | -0.019 dB | 38 % | ![Pass][cv-pass] Pass | | ISO 11820:1996 Eqs. (6), (10) and (12) / Ver and Beranek (2006) Example 4.2, PDF pages 95 and 96, folios 90 and 91 | The printed Sabine absorption area of a 200 m3 room at 21,4 C, where the speed of sound is 344 m/s | 10.7 m² (+/-0.05 m²) | 10.7097 m² | 0.0097 m² | 19 % | ![Pass][cv-pass] Pass | | ISO 11820:1996 Eq. (5) / Ver and Beranek (2006) Example 4.2, PDF page 96, folio 91 | The decibel term that absorption area becomes, printed as the first of the five the example adds | 10.3 dB (+/-0.05 dB) | 10.3 dB | -0.002 dB | 4 % | ![Pass][cv-pass] Pass | | ISO 11820:1996 Eqs. (6), (10) and (12) / Barron (2003) Example 7-2, PDF pages 297 to 299, folios 285 to 287 | The same area at another room and another speed of sound, against two absorption areas the example reaches by two unrelated routes | both areas inside the rounding of the printed time | worst departure 0.0257 m2 | 0.0257 m² | 86 % | ![Pass][cv-pass] Pass | | ISO 11820:1996 Eq. (29) / Barron (2003) Examples 8-11 and 8-10, PDF pages 399 and 392, folios 387 and 380 | The density of the air flowing through a muffler, at two temperatures and two ambient pressures away from the defaults | Example 8-11, air at 450 K and 140 kPa = 1.084 kg/m3; Example 8-10, air at 600 K and 110 kPa = 0.639 kg/m3 | Example 8-11, air at 450 K and 140 kPa = 1.084 kg/m3; Example 8-10, air at 600 K and 110 kPa = 0.639 kg/m3 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 11820:1996 Eq. (28) / INSHT NTP 668 (2004) Ec. 2 and Ec. 3, PDF pages 3 and 4 | The flow velocity a velocity pressure stands for, against the two coefficients a national guide prints for it | Ec. 2, density free, 1 kg/m3 = 4.43 m/s; Ec. 3, air at 20 C, 1,2 kg/m3 = 4.04 m/s | Ec. 2, density free, 1 kg/m3 = 4.43 m/s; Ec. 3, air at 20 C, 1,2 kg/m3 = 4.04 m/s | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 11820:1996 Eq. (31) / VDI 2081 Blatt 2:2005-05 Tabelle 1, PDF page 12, folio 12 | The mean velocity in the passages of a splitter silencer carrying 16 000 m3/h, from the face velocity and the area ratio | 14.81 m/s (+/-0.005 m/s) | 14.815 m/s | 0.005 m/s | 100 % | ![Pass][cv-pass] Pass | | ISO 11820:1996 Eq. (31) / Fuchs (2013) Table 13.4, PDF page 588, folio 574 | Twelve printed airway velocities of two splitter designs, at three flow rates and three housing cross-sections | 12/12 printed airway velocities | 12/12 printed airway velocities | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 11820:1996 Eq. (15) / Barron (2003) Example 5-7, PDF page 215, folio 203 | The area-equivalent diameter inside the upstream distance, for the 0,810 m2 cross-section of a 900 mm square duct | 1.524 m (+/-0.00075 m) | 1.52331 m | -0.00069 m | 92 % | ![Pass][cv-pass] Pass | | ISO 11821:1997 5.7 | The background correction at the two ends of the 6 dB to 10 dB window | 1,2563 dB at 6 dB and 0,4576 dB at 10 dB | 1.2563 dB and 0.4576 dB | 0 dB | 5 % | ![Pass][cv-pass] Pass | | ISO 11821:1997 5.5.2 | The four microphone distances are a quarter, a half, once and twice the screen height, with a floor of 1 m | h/4 = 2 m; h/2 = 4 m; h = 8 m; 2h = 16 m | h/4 = 2 m; h/2 = 4 m; h = 8 m; 2h = 16 m | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 11821:1997 3.10 and 5.2.2 | The directivity index is the logarithmic mean of twelve positions less the position, so a position under the mean reads positive | 9.6614 dB (+/-0 dB) | 9.6614 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 11821:1997 5.6.2.1 and clause 6 | The impulse repeat rules and the one uncertainty number the document prints | repeats = 3; repeat again = 3; invalid = 5; deviation = 2 | repeats = 3; repeat again = 3; invalid = 5; deviation = 2 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 11821:1997 5.8 / Barron (2003) Table 7-6, PDF page 328, folio 316 | D_p from a printed level pair, at the two octave bands the worked example prints a reduction for | 7.6 dB at 63 Hz and 24.2 dB at 8000 Hz | 7.6 dB and 24.2 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 11821:1997 5.9 / Barron (2003) Example 7-9, PDF pages 327 and 329, folios 315 and 317 | D_pA from the printed A-weighted pair, 69.6 dBA without the barrier and 55.3 dBA with it | 14.3 dBA (+/-0 dBA) | 14.3 dBA | 0 dBA | 0 % | ![Pass][cv-pass] Pass | | ISO 11821:1997 5.8 / Barron (2003) Example 7-10, PDF pages 331 to 333, folios 319 to 321 | D_p for a screen standing indoors: 92.3 dB falls to 84.0 dB in the 1000 Hz octave at the operator position | 8.3 dB (+/-0 dB) | 8.3 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 11821:1997 5.8 / Hansen (2005) Example 6.23, PDF pages 325 and 326, folios 317 and 318 | D_p over three octave bands, rounded to the whole decibel 7.4 c) reports it in | 500 Hz = 10 dB; 1000 Hz = 15 dB; 2000 Hz = 20 dB | 500 Hz = 10 dB; 1000 Hz = 15 dB; 2000 Hz = 20 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 11821:1997 5.8 / Noise Control in Industry 3e (1991), PDF page 188, folio 177 | D_p from the 80 dB / 71 dB pair the worked example prints, and from the three single-path levels printed beside it | screen = 9 dB; path 1 = 15 dB; path 2 = 10 dB; path 3 = 18 dB | screen = 9 dB; path 1 = 15 dB; path 2 = 10 dB; path 3 = 18 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 11821:1997 5.8 / IFA-LSA 01-234 (2020) Tab. 4.5, PDF page 18, folio 18 | The differences printed between neighbouring positions, band by band, less the one cell the document misprints | 11/11 cells of Tab. 4.5 | 11/11 cells of Tab. 4.5 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 11821:1997 5.7 / Barron (2003) Example 3-6, PDF page 85, folio 73 | The corrected level at the lower edge of the window: 83 dB measured over a 77 dB background | 81.7 dB (+/-0.05 dB) | 81.7437 dB | 0.0437 dB | 87 % | ![Pass][cv-pass] Pass | | ISO 11821:1997 5.7 / Barron (2003) Table 3-4, PDF page 84, folio 72 | The seven rows of the printed correction table that fall inside the 6 dB to 10 dB window, to the 0.1 dB the table prints | 6 dB = 1.3 dB; 6.5 dB = 1.1 dB; 7 dB = 1 dB; 7.5 dB = 0.9 dB; 8 dB = 0.7 dB; 9 dB = 0.6 dB; 10 dB = 0.5 dB | 6 dB = 1.3 dB; 6.5 dB = 1.1 dB; 7 dB = 1 dB; 7.5 dB = 0.9 dB; 8 dB = 0.7 dB; 9 dB = 0.6 dB; 10 dB = 0.5 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 11821:1997 5.7 / Hansen (2005) Example 3.25, PDF pages 154 and 155, folios 146 and 147 | The corrected level at a margin of exactly 10 dB, the upper edge of the window, and at a 6.6 dB one | 89.5 dB at a 10 dB margin and 85.5 dB at a 6.6 dB one | 89.542 dB and 85.528 dB | 0.0424 dB | 85 % | ![Pass][cv-pass] Pass | | ISO 11821:1997 5.7 / ISO 140-3:1995 6.5, PDF page 13, folio 7 | The 1,3 dB that ISO 140-3 and ISO 3744:2010 8.2.3 both print for a 6 dB margin, which is where the window of 5.7 opens | 1.3 dB (+/-0.05 dB) | 1.2563 dB | -0.0437 dB | 87 % | ![Pass][cv-pass] Pass | | ISO 11821:1997 3.10 / Barron (2003) Example 3-5, PDF pages 80 and 81, folios 68 and 69 | The logarithmic mean under the directivity index: 80.6 dB over ten printed levels and 81.8 dB over three of them | 80.6 dB over ten positions and 81.8 dB over the ring | 80.5857 dB and 81.7602 dB | 0.0398 dB | 80 % | ![Pass][cv-pass] Pass | | ISO 10847:1997 Table 3 | The background correction to add, over the two printed rows | 4 dB = -2 dB; 5 dB = -2 dB; 6 dB = -1 dB; 7 dB = -1 dB; 8 dB = -1 dB; 9 dB = -1 dB | 4 dB = -2 dB; 5 dB = -2 dB; 6 dB = -1 dB; 7 dB = -1 dB; 8 dB = -1 dB; 9 dB = -1 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 11820:1996 Table 1 / ISO 10847:1997 Table 3 | The two stepped tables disagree at a 9 dB margin, so they are two tables and not one helper | ISO 11820 subtracts = 0.5 dB; ISO 10847 adds = -1 dB | ISO 11820 subtracts = 0.5 dB; ISO 10847 adds = -1 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 10847:1997 8.2.1 and 8.2.2 | The indirect method returns exactly what the direct one returns when the receiver is of the same kind in both campaigns | 0 dB (+/-0 dB) | max absolute difference 0.000 dB over both receiver kinds | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 10847:1997 8.2.2 | Mixing a hemi-free-field receiver with a facade one moves the answer by exactly the 6 dB of the pressure doubling | 6 dB in every band | max absolute departure 0.000 dB over the three bands | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 10847:1997 8.2.1 | A source that changed output between the two campaigns is normalised away by the reference position | 0 dB (+/-0 dB) | max absolute difference 0.000 dB for a 4 dB source gain | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 10847:1997 Table 1 | The wind classes, with the upwind one existing only over short distances and read as negative | 4/4 readings of Table 1 | 4/4 readings of Table 1 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 10847:1997 6.3.1 | The short-distance ratio is strict at 0,1, and the after case needs both of its two inequalities | 0,1 exactly is not short, and both halves must hold | 1/1 readings of 6.3.1 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 10847:1997 7.2.2 and 8.1.2 a) | The reference microphone stands at least 1,5 m above the top edge, and higher where the 10 degree rule of the NOTE asks for more | 0 m (+/-0 m) | 0 m | 0 m | 0 % | ![Pass][cv-pass] Pass | | ISO 10847:1997 3.10 | The far field falls 6 dB per doubling for a point source and 3 dB for an incoherent line source | 6,02 dB and 3,01 dB, printed rounded to 6 and 3 | 6 dB and 3 dB | 0.0206 dB | 98 % | ![Pass][cv-pass] Pass | | Cordero et al. (2010) Tablas 1 and 2, printed folios 5 and 6 (PDF pages 5 and 6) | A campaign that prints all four levels: the two insertion losses it reports to the nearest decibel, 13 dBA and 10 dBA | sin ruido = 13 dBA; con ruido = 10 dBA | sin ruido = 13 dBA; con ruido = 10 dBA | exact | 0 % | ![Pass][cv-pass] Pass | | Cordero et al. (2010) Tablas 1 and 2, printed folios 5 and 6 (PDF pages 5 and 6) | The one value that campaign prints before rounding, 9,5 dBA, for the case with the background raised at the receiver alone | 9.5 dBA (+/-0.05 dBA) | 9.5 dBA | 0 dBA | 0 % | ![Pass][cv-pass] Pass | | Lindeman (1985) Table 8, printed folio 39 (PDF page 7) | A barrier measured before it stood and after, by the direct method: the runs whose four levels are printed give the printed insertion loss | 2/2 (worst departure 0.000 dBA) | 2/2 runs within the 0,1 dB the table prints to | exact | 0 % | ![Pass][cv-pass] Pass | | Lindeman (1985) Tables 12 and 13, printed folio 41 (PDF page 9) | The same barrier by the indirect method, five runs against an equivalent site, and the mean insertion loss of 7,0 dBA the table reports | 6/6 (worst departure 0.020 dBA) | 6/6 printed values, the five runs and their mean | exact | 0 % | ![Pass][cv-pass] Pass | | FHWA-PD-96-046 clause 6.6.3, printed folio 84 (PDF page 101) | The insertion loss worked through with every level printed, 8,8 dB and 8,7 dB, once the off-model edge adjustment is applied outside | 8,8 dB from the 56,2 dB typed, 8,7 dB from the 56,3 dB listed | largest departure 0.000 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 80000-1:2009 Annex B, B.3 Rule A, printed folios 35 and 36 (PDF pages 43 and 44) | The tie-break clause 10 c) of ISO 10847 leaves open: an exact half is reported as the even whole decibel, the rule Annex B calls preferable | 1 225,0 = 1220; 1 235,0 = 1240 | 1 225,0 = 1220; 1 235,0 = 1240 | exact | 0 % | ![Pass][cv-pass] Pass | | FHWA-PD-96-046 Table 3, printed folio 35 (PDF page 52) | A second document classing the wind the same way, with the upwind class printed as an interval running from -1 m/s to -5 m/s | 9/9 readings inside the printed intervals | 9/9 readings inside the printed intervals | exact | 0 % | ![Pass][cv-pass] Pass | | CEN/TS 16272-7:2015 Table 4 and 7.3.7, printed folio 14 (PDF page 15) | A second committee reprinting the same background correction: the two grouped rows, the 4 dB floor and the 10 dB margin its prose asks for | 4/4 readings of Table 4 and its clause | 4/4 readings of Table 4 and its clause | exact | 0 % | ![Pass][cv-pass] Pass | | Jagniatinskis et al. (2017) Table 1, printed folios 293 and 294 (PDF pages 5 and 6) | Three insertion losses from a highway campaign that prints its before difference as one number, read at three unrelated splits of it | 9/9 (worst departure 0.000 dBA) | 9/9 readings, three printed results at three splits each | exact | 0 % | ![Pass][cv-pass] Pass | | Rodiño & Masson (2015) Tabla 2, printed folio 7 (PDF page 7) | Six printed insertion losses of a screen measured with no reference microphone, where 8.2.1 degenerates to the plain level difference | 6/6 (worst departure 0.000 dB) | 6/6 printed insertion losses, unweighted and A-weighted | exact | 0 % | ![Pass][cv-pass] Pass | | Bies 5e §4.9.2 (printed folio 201, PDF page 230) | The 6 dB of C'_r read off a page outside the standard: the pressure doubling at a receiver held against a reflecting surface | 6 dB in every band, the 20 lg 2 of a pressure doubling as the page prints it | max absolute departure 0.000 dB over the three bands | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 10847:1997 7.2.2, NOTE | The close-source height puts the reference microphone 10 degrees above the angle to the barrier top, and not 10 degrees above the ground | 10 degrees over the angle to the top, at four geometries | largest departure below 1e-12 deg | 0 deg | 0 % | ![Pass][cv-pass] Pass |

Spatial sound decay and prediction in workrooms: 100% (36/36)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ISO 14257:2001 Eq. (2) | The free-field reference curve falls 6 dB per distance doubling and passes 11 dB under the source power at 1 m | at 1 m = -11 dB; per doubling = 6.02 dB | at 1 m = -11 dB; per doubling = 6.02 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 14257:2001 Annex C, Table C.6 EXAMPLE | The Annex B correction reproduces all 66 printed values of the corrected distribution curve | 66/66 (worst departure 0.09 dB) | 66/66 printed values within the rounding of the table | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 14257:2001 Annex C, Table C.6 last column | The A-weighted pink-noise normalisation of Eq. (4), with the printed 6,2 dB, reproduces the eleven printed values to within 0,1 dB | every value within 0,1 dB: the printed 6,2 dB is 0,05 dB short of the sum of the printed Table 1 weights, which is what the annex normalised with, so a cell can come out one unit high in the last place and never low | worst departure 0.09 dB over 11 positions, 6 of them beyond the printed rounding and all of those high | 0.092 dB | 92 % | ![Pass][cv-pass] Pass | | ISO 14257:2001 Eq. (4) against Annex C, Table C.6 last column and Table C.10 (ISO 14257:2001, PDF page 10, printed folio 4; BS EN ISO 14257:2001, PDF page 14, printed folio 4) | The 6,2 dB Eq. (4) prints is the A-weighting curve's energy sum rounded, the six weights Table 1 prints sum to 6,2515 dB, and the annex was normalised exactly: Eq. (3) under the Table 1 weights lands all fourteen printed values inside their rounding where the printed constant lands nine of them one unit high | 0 of 14 outside the printed rounding with the Table 1 sum, against 9 of 14 with the printed 6,2 dB, every one of the 14 high and none by a second unit | 0 of 14 with the sum (worst 0.045 dB, both signs); 9 of 14 with 6,2 dB (worst 0.097 dB, 0 low, 0 past one unit) | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 14257:2001 Eq. (5) / Annex C, Table C.7 EXAMPLE | The rate of spatial decay reproduces all 18 printed values, in three distance ranges and six octave bands | 18/18 (worst departure 0.05 dB) | 18/18 printed values of DL2 within the rounding of the table | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 14257:2001 Eqs. (6) and (7) / Annex C, Table C.9 EXAMPLE | The excess of sound pressure level reproduces all 18 printed values from the uncorrected curve of Table C.5 | 18/18 (worst departure 0.06 dB) | 18/18 printed values of DLf within the rounding of the table | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 14257:2001 Annex C (C.1 against Tables C.7 and C.9) | The annex applies its own Annex B correction to DL2 and not to DLf, which the two tables disagree about by more than a decibel | 28 of the 36 printed results leave the rounding of their own table when the other table's curve is used | 28 of 36, 14 in each table | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 14257:2001 Eq. (5) against Eq. (8) | The factor Eq. (5) prints, 0,3, is the logarithm of two rounded, which Eq. (8) prints in full one page later | lg 2 = 0,301 03 | the printed 0,3, which is 0,34 % smaller | -0.001 | 50 % | ![Pass][cv-pass] Pass | | ISO 14257:2001 Table 1 | The A-weighted pink-noise spectrum weights the six octave bands the way Table 1 prints them | 125 Hz = -16.1 dB; 250 Hz = -8.6 dB; 500 Hz = -3.2 dB; 1 kHz = 0 dB; 2 kHz = 1.2 dB; 4 kHz = 1 dB | 125 Hz = -16.1 dB; 250 Hz = -8.6 dB; 500 Hz = -3.2 dB; 1 kHz = 0 dB; 2 kHz = 1.2 dB; 4 kHz = 1 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 14257:2001 Annex B, Eq. (B.4) | A source with its acoustical centre on the floor radiates into a half space, which is 3 dB over the free field | the 3 dB Eq. (B.4) prints | 3.0103 dB | 0.0103 dB | 52 % | ![Pass][cv-pass] Pass | | ISO 14257:2001 Annex A (PDF pages 24 and 25, printed folios 14 and 15) | The limits a test source is qualified against are the ones the normative annex prints | max \|DI\|, dB = 8; DI tolerance to 630 Hz, dB = 2; DI tolerance from 1 kHz, dB = 8; ramp starts, Hz = 630; ramp ends, Hz = 1000; adjacent band step, dB = 8; Lw stability 100 Hz to 160 Hz, dB = 1; Lw stability 200 Hz to 5 kHz, dB = 0.5 | max \|DI\|, dB = 8; DI tolerance to 630 Hz, dB = 2; DI tolerance from 1 kHz, dB = 8; ramp starts, Hz = 630; ramp ends, Hz = 1000; adjacent band step, dB = 8; Lw stability 100 Hz to 160 Hz, dB = 1; Lw stability 200 Hz to 5 kHz, dB = 0.5 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 14257:2001 C.3 (PDF page 29, printed folio 19) | The source the annex declares as qualified is inside both limits it is declared against | 2/2, the closer of the two 1,5 dB under the 8 dB cap | 2/2 declared characteristics inside their limit | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 14257:2001 Annex C, Table C.2 last column (PDF page 28, printed folio 18) | The A-weighted sound power level of the test source is the energy sum of its six printed octave bands under the Table 1 weights | 115.7 dB (+/-0.05 dB) | 115.7086 dB | 0.0086 dB | 17 % | ![Pass][cv-pass] Pass | | ISO 14257:2001 Annex C, Tables C.11 and C.12 (BS EN ISO 14257:2001, PDF page 34, printed folio 24; UNE-EN ISO 14257:2002, PDF page 30, printed folio 30) | Equation (8) over the printed curves does not give the printed tables, and two printings print the same numbers, so the annex is inconsistent here rather than mis-set | 18 of the 21 printed results leave the rounding of their own table: 15 of the 18 of Table C.11 over Table C.5, up to 1,55 dB, and the 3 of Table C.12 over the last column of Table C.6. The two printings of the standard agree digit for digit, so neither is a misprint of the other | 18 of 21, departures from -0.41 dB to +1.55 dB with no systematic sign | 0 | 0 % | ![Pass][cv-pass] Pass | | Suva 66008.f (2006) Tableau 2 and Figure 7 (PDF page 13, printed page 11) | Equation (5) reproduces the 21 decay rates a Swiss workroom survey prints, in three distance ranges and seven columns | 21/21 (worst departure 0.051 dB) | 21/21 printed values of DL2 reproduced within 0,06 dB | exact | 0 % | ![Pass][cv-pass] Pass | | Suva 66008.f (2006) Tableau 2 and Figure 7 (PDF page 13, printed page 11) | Equations (6) and (7) reproduce the 21 printed values of the excess over a free field from the same measured curve | 21/21 (worst departure 0.048 dB) | 21/21 printed values of DLf within the rounding of the summary | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 14257:2001 Eq. (2) against Suva 66008.f (2006) Figure 7 (PDF page 13, printed page 11) | The free-field reference the survey measured its excess against, recovered from its 21 printed values, is the whole sphere | 10 lg(4 pi) = 10,992 dB, which Eq. (2) prints as 11 dB | 10.988 dB, from the mean of the 21 residuals | -0.0045 dB | 22 % | ![Pass][cv-pass] Pass | | ISO 14257:2001 6.2 against Suva 66008.f (2006) 2.6.2 and 2.6.3 (PDF page 11, printed page 9) | The three distance ranges hold every one of the 23 measurement radii the same page lists | 23/23 radii put in a range the printed bounds admit | 23/23 radii put in a range the printed bounds admit | exact | 0 % | ![Pass][cv-pass] Pass | | IFA-LSA 01-234 (2020) Tab. 4.4 and Tab. 4.5 (PDF pages 17 and 18, printed folios 17 and 18) | Equation (5) reproduces the decay rate a German guidance sheet prints for four octave bands measured at four distances | 4/4 (worst departure 0.036 dB) | 4/4 printed values of DL2 within the rounding of the table | exact | 0 % | ![Pass][cv-pass] Pass | | IFA-LSA 01-234 (2020) Tab. 4.4 against Tab. 4.5 (PDF pages 17 and 18, printed folios 17 and 18) | The 2 kHz level difference the result table prints, 4,7 dB, is not the one its own decay rate was computed from | the printed level gives the printed 4,3 dB and the level the printed difference would need gives 4,4 dB | 2/2 readings the printed decay rate settles | exact | 0 % | ![Pass][cv-pass] Pass | | Probst (2006) Anh. 1 Tabs. 3, 6, 13 and 22 (PDF pages and printed folios 79, 82, 93 and 105) | The fitting density of NOTE 3 of 6.2.2 reproduces the four values an independent VDI 3760 tool printed for surveyed workrooms | 4/4 (worst departure 0.00049 1/m) | 4/4 printed densities within half of their last printed figure | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 11690-3:1998 Annex C, Table C.2 EXAMPLE | The level increase at a machine's own workstation is the ISO 3744 environmental correction, which reproduces seven of the eight rows | 7/7 (worst departure 0.39 dB) | 7/7 rows within the half decibel the diagram is drawn to | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 11690-3:1998 Annex C, Figure C.1 (the eighth machine) | M8 needs more increase than the diagram can show, and the table prints the edge of the diagram instead | 12,4 dB, against the 10 dB the table prints and the 10 dB the diagram ends at | 12.3789 dB | -0.0211 dB | 21 % | ![Pass][cv-pass] Pass | | ISO 11690-3:1998 Table E.1 | Each category of prediction method admits the levels of detail Table E.1 lists and refuses the rest | 5/5 combinations judged as printed | 5/5 combinations judged as printed | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 11690-3:1998 4.3 against ISO 14257 Annex C | The middle-range decay of the worked example falls inside the 2 dB to 5 dB the guidance says to expect | five of the six octave bands, the 4 kHz one running 0,4 dB over the 5 dB top of the range 4.3 leads one to expect | 5 of 6 inside 2 dB to 5 dB | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 11690-3:1998 Annex B, Tables B.2 to B.6 EXAMPLE (BS EN printing, printed folios 16 to 18, PDF pp. 26 to 28) | Case A: what the two workstations hear once the two new machines are installed, at the positions the annex prints | beside M2 = 82.1 dB; far corner = 80.3 dB | beside M2 = 82.1 dB; far corner = 80.3 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 11690-3:1998 Annex B, Tables B.7 to B.9 EXAMPLE (BS EN printing, printed folio 18, PDF p. 28) | Case B: the six levels printed for the two machines on offer, at the three workstation positions | 6/6: all but one within the 0,05 dB half step of the printed tenth (worst 0.037 dB), and the cell beside the new machine with the first choice at its recorded -0.063 dB (computed -0.0628 dB) | 6/6 printed levels of Table B.9 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 11690-3:1998 Annex B, Figure B.1 against Tables B.5 and B.8 (BS EN printing, printed folios 16 and 18) | The results of Annex B belong to the positions Figure B.1 draws, and not to the ones the two workstation tables put the same labels on | 12/12: the 6 cells within 0,1 dB at the positions Figure B.1 draws, and the same 6 more than 0,1 dB out at the positions Tables B.5 and B.8 tabulate (nearest 0.478 dB, farthest 1.836 dB) | 12/12 readings of the 6 printed cells, reproduced at the positions Figure B.1 draws and rejected at the positions Tables B.5 and B.8 tabulate | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 11690-3:1998 Annex C, Table C.2 last column EXAMPLE (BS EN printing, printed folio 20, PDF p. 30) | The level at a machine's own workstation rounds to the printed integer for all seven machines the diagram of Figure C.1 can show | M1 = 89 dB; M2 = 84 dB; M3 = 92 dB; M4 = 83 dB; M5 = 88 dB; M6 = 84 dB; M7 = 87 dB | M1 = 89 dB; M2 = 84 dB; M3 = 92 dB; M4 = 83 dB; M5 = 88 dB; M6 = 84 dB; M7 = 87 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 11690-3:1998 4.3 (BS EN printing, printed folios 2 and 3, PDF pp. 12 and 13) | The bounds the clause prints for the two descriptors, region by region, with the five it leaves open left open | 12/12 bounds of 4.3, the five the clause prints no number for included | 12/12 bounds of 4.3, the five the clause prints no number for included | exact | 0 % | ![Pass][cv-pass] Pass | | IFA-LSA 01-234 (2020) Tab. 4.2 (printed folio 14, PDF p. 14) | The equivalent absorption area of a 6 000 m3 production hall, from the reverberation times measured in it | 500 Hz = 279 m²; 1 kHz = 257 m²; 2 kHz = 296 m²; 4 kHz = 391 m² | 500 Hz = 279 m²; 1 kHz = 257 m²; 2 kHz = 296 m²; 4 kHz = 391 m² | exact | 0 % | ![Pass][cv-pass] Pass | | IFA-LSA 01-234 (2020) Tab. 4.2 (printed folio 14, PDF p. 14) | The mean absorption coefficient of the same hall, which is that area over the 2 200 m2 of boundary the sheet works out from its dimensions | 500 Hz = 0.13; 1 kHz = 0.12; 2 kHz = 0.13; 4 kHz = 0.18 | 500 Hz = 0.13; 1 kHz = 0.12; 2 kHz = 0.13; 4 kHz = 0.18 | exact | 0 % | ![Pass][cv-pass] Pass | | Ver & Beranek 2e, Table 7.4 and the text before it (printed folios 199 and 200, PDF pp. 203 and 204) | Nine machines around one assembly bench add on a power basis to the two printed totals, and to the benefit of treating the ceiling | 3/3 (worst departure 0.05 dB, on the total before treatment: the nine contributions are themselves printed to 0,1 dB, so their sum can only be recovered to half a step) | 3/3 printed totals and the benefit printed beside them | exact | 0 % | ![Pass][cv-pass] Pass | | Barron (2003) Example 7-8 and Table 7-5 (printed folios 307 to 309, PDF pp. 319 to 321) | The level at the operator in six octave bands, with the direct term as the statement and the worked line write it, Q/(4 pi r^2) | 125 Hz = 93.4 dB; 250 Hz = 98.5 dB; 500 Hz = 102.9 dB; 1 kHz = 104.6 dB; 2 kHz = 102.8 dB; 4 kHz = 95.5 dB | 125 Hz = 93.4 dB; 250 Hz = 98.5 dB; 500 Hz = 102.9 dB; 1 kHz = 104.6 dB; 2 kHz = 102.8 dB; 4 kHz = 95.5 dB | exact | 0 % | ![Pass][cv-pass] Pass | | Barron (2003) Table 7-5 against itself (printed folio 308, PDF p. 320) | The room constant printed at 2 kHz is the one a mean absorption of 0,041 gives, and not the 0,043 the row above it prints | the 47,88 m2 Table 7-5 prints at 2 kHz | 47.88 m2 from a mean absorption of 0,041, against the 50.32 m2 the printed 0,043 gives | 0.0032 m² | 64 % | ![Pass][cv-pass] Pass | | Barron (2003) Example 7-6 (printed folio 298, PDF p. 310) | The level in a paper mill refiner room, from the room constant the example works out and a directivity factor of 2 | the 94,8 dB the example prints, for a room constant of 47,37 m2 | 94.85 dB, from the 47.37 m2 the library returns for (0,05)(900)/(1 - 0,05) | 0.049 dB | 82 % | ![Pass][cv-pass] Pass |

Suspended ceilings in a reverberation room (EN 16487): 100% (12/12)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | EN 16487:2014 Table 1 (BS EN 16487:2014, printed folio 14, PDF page 16) | Reproducibility uncertainty of the absorption coefficient, the six printed octave bands and the weighted rating | 125 Hz = 0.23; 250 Hz = 0.23; 500 Hz = 0.11; 1 kHz = 0.1; 2 kHz = 0.1; 4 kHz = 0.13; alpha_w = 0.08 | 125 Hz = 0.23; 250 Hz = 0.23; 500 Hz = 0.11; 1 kHz = 0.1; 2 kHz = 0.1; 4 kHz = 0.13; alpha_w = 0.08 | exact | 0 % | ![Pass][cv-pass] Pass | | EN 16487:2014 Table 1 NOTE (printed folio 14) against ISO 12999-2:2020 Table 3 (printed folio 6) | The coverage factor is the 2,8 of ISO 5725-6 for this test code and the 2,0 of Table 3 at 95 % for the general method | EN 16487 NOTE = 2.8; ISO 12999-2 Table 3 at 95 % = 2 | EN 16487 NOTE = 2.8; ISO 12999-2 Table 3 at 95 % = 2 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 9613-1:1993 Table 1, sub-tables (i) and (j) (printed folio 9, PDF page 12) | Pure-tone attenuation in dB/km at the four climates the air-absorption correction of 4.2.1 is exercised at below | 20/20 (worst cell 95% of its half-digit) | 20/20 printed cells inside half of their last printed digit | exact | 0 % | ![Pass][cv-pass] Pass | | Vigran (2008) Eq. (4.41), printed page 122, PDF page 143 | The EN ISO 354:2003 8.1.2.1 conversion between alpha and m, printed as 10 lg(e) = 4,343 | 4,343, to the four figures the page prints | 4.342945 | -0.000055 | 11 % | ![Pass][cv-pass] Pass | | Vigran (2008) Eq. (4.42) and the Example, printed page 123, PDF page 144 | The factor of four in the air term of 4.2.1, against a printed air-absorption area of 20 m2 | 20 m2 of air absorption, from V = 100 m3 and m = 0,05 1/m | 20 m² | 0 m² | 0 % | ![Pass][cv-pass] Pass | | Cox & D'Antonio 3e Table 4.2, printed page 104, PDF page 161 | The air absorption constant m at 20 degC, over the three humidity rows 4.2.2 admits | 24/24 (worst cell 86% of its half-digit) | 24/24 printed cells inside half of their own last decimal | exact | 0 % | ![Pass][cv-pass] Pass | | EN 16487:2014 4.2.1 (printed folio 12, PDF page 14) with ISO 9613-1:1993 Table 1(i) and EN ISO 354:2003 8.1.2.1 | The air-absorption correction of a 300 m3 room whose humidity moved from 50 % to 60 %, which the clause reports as over its printed cap | the printed 0,05, and the room reported as over it | cap 0.05, largest correction -0.10329 at 4000 Hz, reported | exact | 0 % | ![Pass][cv-pass] Pass | | EN 16487:2014 4.2.1 (printed folio 12, PDF page 14) with ISO 9613-1:1993 Table 1(i) and 1(j) | The same correction in a 200 m3 room at 90 % relative humidity, which the clause passes in silence as inside its printed cap | the printed 0,05, and the room passed in silence | cap 0.05, largest correction +0.03309 at 2000 Hz, not reported | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 354:2003 Formulae (8) and (9) (printed folios 10 and 11, PDF pages 20 and 21 of the EN printing), as EN 16487:2014 4.2.1 uses them | The absorption coefficient of a type E 200 mm ceiling, from the reverberation times and climates a UKAS certificate prints | 6/6 (worst departure 0.0046) | 6/6 printed coefficients within the rounding of the certificate | exact | 0 % | ![Pass][cv-pass] Pass | | EN 16487:2014 4.1.1.1.1 and 4.1.1.2.3.1 (printed folios 6 and 9, PDF pages 8 and 11) | Four real suspended-ceiling arrangements judged against the printed 10,80 m2 and the printed 200 mm | 4/4 against the 10,80 m2 of 4.1.1.1.1 and the 200 mm of 4.1.1.2.3.1 | 4/4 arrangements judged as the two clauses print them | exact | 0 % | ![Pass][cv-pass] Pass | | EN 16487:2014 4.2.2 (printed folio 12, PDF page 14) | The 50 % relative humidity floor against the room climates three laboratories printed | 3/3 against the 50 % of 4.2.2, one of them below it | 3/3 printed climates judged against the floor of the clause | exact | 0 % | ![Pass][cv-pass] Pass | | EN 16487:2014 Table 1 footnote b with EN ISO 11654:1997 4.1 and 4.2 (printed folios 2 and 3) | The weighted rating and absorption class three laboratories printed for their own suspended ceilings | 3/3 printed alpha_w with class and indicator, and 5/5 printed alpha_p | 8/8 printed ratings and practical coefficients reproduced | exact | 0 % | ![Pass][cv-pass] Pass |

Steam turbine sets (IEC 61063): 100% (8/8)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | IEC 61063:1991 Table 2 (BS EN 61063:1996, printed folio 8, PDF page 14) | Correction for background noise, the nine printed rows from a difference of 3 dB to one above 10 dB | 3 dB = 3 dB; 4 dB = 2 dB; 5 dB = 2 dB; 6 dB = 1 dB; 7 dB = 1 dB; 8 dB = 1 dB; 9 dB = 0.5 dB; 10 dB = 0.5 dB; > 10 dB, at 11 dB = 0 dB; > 10 dB, at 10,2 dB = 0 dB | 3 dB = 3 dB; 4 dB = 2 dB; 5 dB = 2 dB; 6 dB = 1 dB; 7 dB = 1 dB; 8 dB = 1 dB; 9 dB = 0.5 dB; 10 dB = 0.5 dB; > 10 dB, at 11 dB = 0 dB; > 10 dB, at 10,2 dB = 0 dB | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61063:1991 Table 1 (BS EN 61063:1996, printed folio 4, PDF page 10) | Standard deviation of the A-weighted sound power level by the survey method, with and without prominent discrete tones | tonal = 5 dB; broadband = 4 dB | tonal = 5 dB; broadband = 4 dB | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61063:1991 7.1 (BS EN 61063:1996, printed folio 7, PDF page 13) | The measurement surface stands 1 m from the reference box on every side but the floor | length = 2 m; width = 2 m; height = 1 m | length = 2 m; width = 2 m; height = 1 m | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 61063:1991 Equation (1) (BS EN 61063:1996, printed folio 7, PDF page 13) | Area of the measurement surface around the large set of Figure 2 b against the exact area of the stepped surface | 410.1 m² (+/-0 m²) | 410.1 m² | 0 m² | 0 % | ![Pass][cv-pass] Pass | | IEC 61063:1991 Figure A.3 (BS EN 61063:1996, printed folio 12, PDF page 18) | The environmental correction against the formula the figure prints, K = 10 lg[1 + 4/(A/S)], across the A/S it labels | max abs(K - 10 lg[1 + 4/(A/S)]) <= 1e-9 dB at 9 values of A/S | 0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | IEC 61063:1991 Figure A.3 against A.3.3 (BS EN 61063:1996, printed folios 12 and 13, PDF pages 18 and 19) | The A/S at which the environmental correction reaches the 7 dB limit, against the A/S of 1 the clause restates the limit as | 1 (+/-0.5) | 0.997 | -0.003 | 1 % | ![Pass][cv-pass] Pass | | IEC 61063:1991 8.3 NOTE (BS EN 61063:1996, printed folio 9, PDF page 15) | Largest gap between the arithmetic average and Equation (2) for levels spanning 5 dB | 0.7 dB (+/-0.05 dB) | 0.707 dB | 0.007 dB | 14 % | ![Pass][cv-pass] Pass | | IEC 61063:1991 4.2, 4.3, 7.2.2 and A.3.3 (BS EN 61063:1996, printed folios 5, 6, 8 and 12) | The background, wind, overhead and environmental limits, judged at the printed value and just past it | every limit holds at the printed value and fails past it | 4.2 at 3 dB = 1; 4.2 below 3 dB = 1; 4.3 below 6 m/s = 1; 4.3 at 6 m/s = 1; A.3.3 at 7 dB = 1; A.3.3 above 7 dB = 1; 7.2.2 at 1,0 dB = 1; 7.2.2 above 1,0 dB = 1 | exact | 0 % | ![Pass][cv-pass] Pass |

Control valve noise (IEC 60534-8-3): 100% (13/13)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | IEC 60534-8-3:2010 | Regime, examples 1 to 6 (Table A.1) | I, II, III, IV, V, V | example 1 = 1; example 2 = 2; example 3 = 3; example 4 = 4; example 5 = 5; example 6 = 5 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60534-8-3:2010 | Valve style modifier F_d (Eqs. (8a) to (8c)) | 0.3 (+/-0.005) | 0.296 | -0.004 | 80 % | ![Pass][cv-pass] Pass | | IEC 60534-8-3:2010 | Jet diameter D_j, example 1 (Eq. (9)) | 0.012 m (+/-0.0005 m) | 0.0116 m | -0.0004 m | 80 % | ![Pass][cv-pass] Pass | | IEC 60534-8-3:2010 | Vena contracta pressure, examples 1 to 6 (Eq. (2)) | example 4, the worst of the six | 104702 Pa | -0.439 Pa | 22 % | ![Pass][cv-pass] Pass | | IEC 60534-8-3:2010 | Sound power W_a, examples 1 to 6 (Eq. (11)) | example 1 = 22.3 W; example 2 = 30.4 W; example 3 = 141.3 W; example 4 = 86.1 W; example 5 = 291.9 W; example 6 = 218.3 W | example 1 = 22.3 W; example 2 = 30.4 W; example 3 = 141.3 W; example 4 = 86.1 W; example 5 = 291.9 W; example 6 = 218.3 W | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60534-8-3:2010 | Internal level at the pipe wall, examples 1 to 6 (Eq. (18)) | example 1 = 155.3 dB; example 2 = 156.5 dB; example 3 = 161.7 dB; example 4 = 158.8 dB; example 5 = 157 dB; example 6 = 158.4 dB | example 1 = 155.3 dB; example 2 = 156.5 dB; example 3 = 161.7 dB; example 4 = 158.8 dB; example 5 = 157 dB; example 6 = 158.4 dB | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60534-8-3:2010 | Ring and coincidence frequencies, example 7 (Eqs. (21) to (23)) | f_r = 7958 Hz; f_o = 2366 Hz; f_g = 1622 Hz | f_r = 7958 Hz; f_o = 2366 Hz; f_g = 1622 Hz | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60534-8-3:2010 | Pipe transmission loss, example 7, 33 bands (Eq. (20a)) | band 17 at 500 Hz, the worst of 33 | -62.67 dB | -0.066 dB | 66 % | ![Pass][cv-pass] Pass | | IEC 60534-8-3:2010 | A-weighted level 1 m from the pipe wall, examples 1 to 5 (Eq. (25)) | example 1 = 92 dB; example 2 = 93 dB; example 3 = 98 dB; example 4 = 94 dB; example 5 = 97 dB | example 1 = 92 dB; example 2 = 93 dB; example 3 = 98 dB; example 4 = 94 dB; example 5 = 97 dB | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60534-8-3:2010 | Expander chain of Clause 7, example 6 (Eqs. (34) to (41)) | U_p = 190; U_R = 460; M_R = 0.96; W_mR = 47854; eta_R = 0.0009; W_aR = 42; f_pR = 920; L_piR = 151 | U_p = 190; U_R = 460; M_R = 0.96; W_mR = 47854; eta_R = 0.0009; W_aR = 42; f_pR = 920; L_piR = 151 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60534-8-3:2010 | A-weighted level with the expander, example 6 (Eqs. (43) and (25)) | 94 dB(A), where the trim alone gives 93 | 94 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | IEC 60534-8-3:2010 | Multistage trim substitution, example 7 (Eqs. (27) to (29)) | C_n = 315 from Equation (27); p_n = 2,1 x 1e6 Pa from (28a), which NOTE 3 selects because p_1/p_2 = 5 and p_n/p_2 = 1,5 | C_n = 315; p_n (x1e6 Pa) = 2.1; p_n/p_2 = 1.5; (28a) rather than (28b) = 1 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60534-8-3:2010 | Multipath multistage trim, example 7 (Table A.2) | x = 0.334; p_vc = 1371038; F_d = 0.028; W_a = 10.3; L_pi = 156.9; f_p = 14381; L_pAe = 89 | x = 0.334; p_vc = 1371038; F_d = 0.028; W_a = 10.3; L_pi = 156.9; f_p = 14381; L_pAe = 89 | exact | 0 % | ![Pass][cv-pass] Pass |

Control valve noise (IEC 60534-8-4): 100% (14/14)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | IEC 60534-8-4:2005 | Flow conditions, examples 1 to 3 (5.1) | Delta p = 2,0 / 3,5 / 3,5 x 1e5 Pa against 2,38 / 2,38 / 3,32 x 1e5 Pa -> turbulent, cavitating, cavitating | x_Fzp1 (p1-pv) 1 = 2.38; cavitating 1 = 0; x_Fzp1 (p1-pv) 2 = 2.38; cavitating 2 = 1; x_Fzp1 (p1-pv) 3 = 3.32; cavitating 3 = 1 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60534-8-4:2005 | Characteristic pressure ratio x_Fz and x_Fzp1 (Eqs. (3a), (3c)) | x_Fz = 0.2543; x_Fzp1 = 0.2386; x_Fzp1 shifted = 0.3324 | x_Fz = 0.2543; x_Fzp1 = 0.2386; x_Fzp1 shifted = 0.3324 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60534-8-4:2005 | Jet diameter D_j (Eq. (4)) | 0.01758 m (+/-0.00001 m) | 0.01758 m | 0 m | 3 % | ![Pass][cv-pass] Pass | | IEC 60534-8-4:2005 | Vena contracta velocity and stream power (Eqs. (5), (6)) | U_vc 1 = 21.772; U_vc 2 = 28.801; W_m 1 = 6018.05; W_m 2 = 14042.1 | U_vc 1 = 21.772; U_vc 2 = 28.801; W_m 1 = 6018.05; W_m 2 = 14042.1 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60534-8-4:2005 | Acoustical efficiencies (Eqs. (8), (9)) | eta_turb 1 (x1e6) = 1.555; eta_turb 2 (x1e6) = 2.057; eta_cav 2 (x1e6) = 1.243; eta_cav 3 (x1e8) = 1.992 | eta_turb 1 (x1e6) = 1.555; eta_turb 2 (x1e6) = 2.057; eta_cav 2 (x1e6) = 1.243; eta_cav 3 (x1e8) = 1.992 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60534-8-4:2005 | Sound power W_a, examples 1 to 3 (Eqs. (7a), (7b)) | example 1 = 0.0023 W; example 2 = 0.0116 W; example 3 = 0.0073 W | example 1 = 0.0023 W; example 2 = 0.0116 W; example 3 = 0.0073 W | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60534-8-4:2005 | Internal level at the pipe wall, examples 1 to 3 (Eq. (10)) | example 1 = 149.596 dB; example 2 = 156.543 dB; example 3 = 154.532 dB | example 1 = 149.596 dB; example 2 = 156.543 dB; example 3 = 154.532 dB | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60534-8-4:2005 | Strouhal number and turbulent peak (Eqs. (11), (12)) | N_Str 2 = 0.399; N_Str 3 = 0.243; f_p,turb 2 = 654.35; f_p,turb 3 = 397.93 | N_Str 2 = 0.399; N_Str 3 = 0.243; f_p,turb 2 = 654.35; f_p,turb 3 = 397.93 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60534-8-4:2005 | Cavitating peak frequency (Eq. (13)) | example 2 = 1088.94 Hz; example 3 = 1973.43 Hz | example 2 = 1088.94 Hz; example 3 = 1973.43 Hz | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60534-8-4:2005 | Ring frequency and its transmission loss (Eqs. (14), (15)) | f_r = 14860.406; TL_fr = -44.71 | f_r = 14860.406; TL_fr = -44.71 | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60534-8-4:2005 | Turbulent transmission loss, examples 1 to 3 (Eqs. (16a), (16b)) | example 3, the worst of the three | -76.152 dB | 0.008 dB | 80 % | ![Pass][cv-pass] Pass | | IEC 60534-8-4:2005 | Cavitating transmission loss, examples 2 and 3 (Eq. (17)) | example 3, the worse of the two printed rows | -74.922 dB | 0.084 dB | 84 % | ![Pass][cv-pass] Pass | | IEC 60534-8-4:2005 | Level 1 m from the pipe wall, examples 1 to 3 (Eqs. (18a), (18b)) | example 1 = 62.7 dB; example 2 = 81 dB; example 3 = 66.9 dB | example 1 = 62.7 dB; example 2 = 81 dB; example 3 = 66.9 dB | exact | 0 % | ![Pass][cv-pass] Pass | | IEC 60534-8-4:2005 | Frequency route at 8 kHz, examples 1 to 3 (Eqs. (19) to (22)) | L_pi(8k) 1 = 116.3 dB; L_pi(8k) 2 = 141.9 dB; L_pi(8k) 3 = 128 dB; TL(8k) = -51.76 dB; L_pe(8k) 1 = 51.8 dB; L_pe(8k) 2 = 77.4 dB; L_pe(8k) 3 = 63.6 dB | L_pi(8k) 1 = 116.3 dB; L_pi(8k) 2 = 141.9 dB; L_pi(8k) 3 = 128 dB; TL(8k) = -51.76 dB; L_pe(8k) 1 = 51.8 dB; L_pe(8k) 2 = 77.4 dB; L_pe(8k) 3 = 63.6 dB | exact | 0 % | ![Pass][cv-pass] Pass |

Ducted silencer measurement (ISO 7235, ISO 11691): 100% (23/23)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ISO 11691:1995 | Insertion loss by substitution (Eq. (1)) | 50 Hz = 4 dB; 63 Hz = 7 dB; 80 Hz = 12 dB; 100 Hz = 20 dB; 125 Hz = 26 dB; 160 Hz = 28 dB | 50 Hz = 4 dB; 63 Hz = 7 dB; 80 Hz = 12 dB; 100 Hz = 20 dB; 125 Hz = 26 dB; 160 Hz = 28 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 7235:2003 | Reverberation-time correction of the insertion loss (6.3) | 10 lg 2 = 3,010300 dB | 3.0103 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 11691:1995 | Octave from three one-third octaves (Eq. (2)) | -10 lg[(10^-3 + 10^-3 + 10^-0,5)/3] = 9,744 dB | 9.743832 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 11691:1995 | Bounds of the octave insertion loss (Eq. (2)) | between 5.000 dB and 9.771 dB | 9.744 dB | headroom 0.027 dB | 99 % | ![Pass][cv-pass] Pass | | ISO 11691:1995 | Reproducibility of the survey method (Table 1) | 50 Hz = 2 dB; 1250 Hz = 2 dB; 1600 Hz = 3 dB; 10000 Hz = 3 dB | 50 Hz = 2 dB; 1250 Hz = 2 dB; 1600 Hz = 3 dB; 10000 Hz = 3 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 7235:2003 | Microphone position spread limits (Table 6) | 50 Hz = 10 dB; 63 Hz = 10 dB; 80 Hz = 8 dB; 100 Hz = 8 dB; 125 Hz = 7 dB; just above 125 Hz = 6 dB; 160 Hz and above = 6 dB | 50 Hz = 10 dB; 63 Hz = 10 dB; 80 Hz = 8 dB; 100 Hz = 8 dB; 125 Hz = 7 dB; just above 125 Hz = 6 dB; 160 Hz and above = 6 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 7235:2003 | Three microphone positions, or five (6.2.1) | at 50 Hz = 3; at 125 Hz = 5; at 1000 Hz = 5 | at 50 Hz = 3; at 125 Hz = 5; at 1000 Hz = 5 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 7235:2003 | Reproducibility of the three quantities (Table 7) | insertion_loss 50 Hz = 1.5 dB; insertion_loss 250 Hz = 1 dB; insertion_loss 1000 Hz = 2 dB; insertion_loss 4000 Hz = 3 dB; transmission_loss 50 Hz = 3 dB; transmission_loss 250 Hz = 3 dB; transmission_loss 1000 Hz = 3 dB; transmission_loss 4000 Hz = 3 dB; intensity 50 Hz = 3 dB; intensity 250 Hz = 1.5 dB; intensity 1000 Hz = 1 dB; intensity 4000 Hz = 1 dB | insertion_loss 50 Hz = 1.5 dB; insertion_loss 250 Hz = 1 dB; insertion_loss 1000 Hz = 2 dB; insertion_loss 4000 Hz = 3 dB; transmission_loss 50 Hz = 3 dB; transmission_loss 250 Hz = 3 dB; transmission_loss 1000 Hz = 3 dB; transmission_loss 4000 Hz = 3 dB; intensity 50 Hz = 3 dB; intensity 250 Hz = 1.5 dB; intensity 1000 Hz = 1 dB; intensity 4000 Hz = 1 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 7235:2003 | Expanded measurement uncertainty (7.9) | 250 Hz = 2 dB; 4000 Hz = 6 dB | 250 Hz = 2 dB; 4000 Hz = 6 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 11691:1995 | Test duct against the silencer (4.5) | lower = 0.6; upper = 1.7 | lower = 0.6; upper = 1.7 | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 7235:2003 | Open-end transmission loss and reflection (B.3), (B.4) | D_td = -10 lg(1 - r^2) at all 30 pairs | largest disagreement below 1e-12 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 7235:2003 | Solid angle of radiation at the duct end (Table B.1) | A (flush in a wall) = 6.2832 sr; B (wall and floor) = 3.1416 sr; C (free in the room) = 12.5664 sr; D (on the floor) = 6.2832 sr; E (mid-room duct) = 12.5664 sr | A (flush in a wall) = 6.2832 sr; B (wall and floor) = 3.1416 sr; C (free in the room) = 12.5664 sr; D (on the floor) = 6.2832 sr; E (mid-room duct) = 12.5664 sr | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 7235:2003 | Rectangular cut-on frequency (Eq. (5)) | 343,000000 Hz from the (1, 0) eigenvalue | 343 Hz | 0 Hz | 0 % | ![Pass][cv-pass] Pass | | ISO 7235:2003 | Circular cut-on frequency (Eq. (4)) | 0,59 / (1,8412 / pi) = 1,006701 | 1.006702 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 7235:2003 | Transmission loss of an air-terminal unit (Eq. (6)) | 63 Hz gap = 11.2255 dB; 2000 Hz gap = 0.0525 dB | 63 Hz gap = 11.2255 dB; 2000 Hz gap = 0.0525 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 7235:2003 | Normal air density (Eqs. (10), (21), (22)) | (101 325 + 200) / (287 x 293) = 1,207323 kg/m³ | 1.207323 kg/m³ | 0 kg/m³ | 0 % | ![Pass][cv-pass] Pass | | ISO 7235:2003 | Total pressure loss across unequal ducts (Eq. (12)) | S_2 = S_1 = 45 Pa; S_2 = 2 S_1 = 93.6253 Pa; S_2 = S_1 / 2 = -149.5012 Pa | S_2 = S_1 = 45 Pa; S_2 = 2 S_1 = 93.6253 Pa; S_2 = S_1 / 2 = -149.5012 Pa | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 7235:2003 | Pressure loss coefficient is flow invariant (Eq. (14)) | zeta = 0.750000 at 1 m³/s | 0.750000 at 2 m³/s | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 7235:2003 | Averaged pressure loss coefficient (Eq. (18)) | 2,5 - 0,4 = 2,100000 | 2.1 | 0 | 0 % | ![Pass][cv-pass] Pass | | ISO 7235:2003 | Upstream straight length (6.5.2.2.1) | S = 0,0962 m² (350 mm) = 2 m; S = 0,1257 m² (400 mm) = 2 m; S = 0,5 m² = 3.9894 m | S = 0,0962 m² (350 mm) = 2 m; S = 0,1257 m² (400 mm) = 2 m; S = 0,5 m² = 3.9894 m | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 5135:1999 | End reflection loss is ISO 7235 (B.3) written out (Eq. (2)) | ISO 5135 (2) = ISO 7235 (B.3) at all 30 pairs | largest disagreement below 1e-12 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 5135:1999 | Sound power level in the duct (Eq. (1)) | 63 Hz = 71.2255 dB; 125 Hz = 66.1429 dB; 250 Hz = 62.5007 dB; 500 Hz = 60.7724 dB; 1000 Hz = 60.2063 dB; 2000 Hz = 60.0525 dB | 63 Hz = 71.2255 dB; 125 Hz = 66.1429 dB; 250 Hz = 62.5007 dB; 500 Hz = 60.7724 dB; 1000 Hz = 60.2063 dB; 2000 Hz = 60.0525 dB | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 5135:1999 | Least-squares operating line (5.5.2) | slope [dB/decade] = 20; level at 0,2 m³/s [dB] = 50; worst deviation [dB] = 0; lowest readable duty [m³/s] = 0.025; highest readable duty [m³/s] = 1.6 | slope [dB/decade] = 20; level at 0,2 m³/s [dB] = 50; worst deviation [dB] = 0; lowest readable duty [m³/s] = 0.025; highest readable duty [m³/s] = 1.6 | exact | 0 % | ![Pass][cv-pass] Pass |

HVAC noise (VDI 2081): 100% (57/57)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | VDI 2081 Blatt 2:2005-05 Table 1, element 1 | Supply fan sound power at 63 Hz, dB | 90.4 dB (+/-0.05 dB) | 90.41 dB | 0.006 dB | 12 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 2:2005-05 Table 1, element 1 | Supply fan sound power at 125 Hz, dB | 88.8 dB (+/-0.05 dB) | 88.82 dB | 0.022 dB | 44 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 2:2005-05 Table 1, element 1 | Supply fan sound power at 250 Hz, dB | 86.3 dB (+/-0.05 dB) | 86.32 dB | 0.019 dB | 38 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 2:2005-05 Table 1, element 1 | Supply fan sound power at 500 Hz, dB | 82.9 dB (+/-0.05 dB) | 82.91 dB | 0.01 dB | 20 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 2:2005-05 Table 1, element 1 | Supply fan sound power at 1000 Hz, dB | 78.6 dB (+/-0.05 dB) | 78.59 dB | -0.006 dB | 12 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 2:2005-05 Table 1, element 1 | Supply fan sound power at 2000 Hz, dB | 73.4 dB (+/-0.05 dB) | 73.37 dB | -0.027 dB | 54 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 2:2005-05 Table 1, element 1 | Supply fan sound power at 4000 Hz, dB | 67.2 dB (+/-0.05 dB) | 67.24 dB | 0.045 dB | 90 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 2:2005-05 Table 1, element 1 | Supply fan sound power at 8000 Hz, dB | 60.2 dB (+/-0.05 dB) | 60.21 dB | 0.011 dB | 22 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 1:2001-07 Eq. (13) | Fan sound power level L_W4 from the duty, dB | 96 dB (+/-0.05 dB) | 96.041 dB | 0.041 dB | 82 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 2:2005-05 Table 1, element 1 | Supply fan total sound power level, dB | 94.1 dB (+/-0.05 dB) | 94.124 dB | 0.024 dB | 48 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 2:2005-05 Table 1, element 1 | Supply fan A-weighted sound power level, dB | 84.5 dB (+/-0.05 dB) | 84.511 dB | 0.011 dB | 22 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 2:2005-05 Table 1, element 5 | Rectangular duct 500 x 400 mm over 4 m, worst octave deviation, dB | 0 dB (+/-0 dB) | 0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 2:2005-05 Table 1, element 13 | Round duct 160 mm over 1 m, worst octave deviation, dB | 0 dB (+/-0 dB) | 0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 1:2001-07 Eq. (34) | Limit frequency of a 160 mm round duct, Hz | 1245 Hz (+/-0.5 Hz) | 1245.4 Hz | 0.403 Hz | 81 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 2:2005-05 Table 1, element 14 | Round bend 160 mm, Table 7 shifted onto its limit frequency, worst octave deviation, dB | 0 dB (+/-0 dB) | 0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 2:2005-05 Table 1, element 3 | Junction into 0.3 m2 of 1.08 m2 total, dB | 5.6 dB (+/-0.05 dB) | 5.563 dB | -0.037 dB | 74 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 2:2005-05 Table 1, element 7 | Junction into 0.049 m2 of 0.147 m2 total, dB | 4.8 dB (+/-0.05 dB) | 4.771 dB | -0.029 dB | 58 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 2:2005-05 Table 1, element 16 | Junction into 0.02 m2 of 0.04 m2 total, dB | 3 dB (+/-0.05 dB) | 3.01 dB | 0.01 dB | 20 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 1:2001-07 Eq. (16) | Flow noise of a straight duct, overall sound power level, dB | 38 dB (+/-0.5 dB) | 38.31 dB | 0.306 dB | 61 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 1:2001-07 Eq. (17) | Flow noise of a straight duct, A-weighted sound power level, dB | 22 dB (+/-0.5 dB) | 21.62 dB | -0.376 dB | 75 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 2:2005-05 Table 1, element 3 | Junction flow noise at 63 Hz, dB | 39.1 dB (+/-0.05 dB) | 39.09 dB | -0.011 dB | 22 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 2:2005-05 Table 1, element 3 | Junction flow noise at 125 Hz, dB | 33.5 dB (+/-0.05 dB) | 33.53 dB | 0.031 dB | 62 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 2:2005-05 Table 1, element 3 | Junction flow noise at 250 Hz, dB | 27.4 dB (+/-0.05 dB) | 27.36 dB | -0.039 dB | 78 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 2:2005-05 Table 1, element 3 | Junction flow noise at 500 Hz, dB | 20.7 dB (+/-0.05 dB) | 20.72 dB | 0.021 dB | 42 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 2:2005-05 Table 1, element 3 | Junction flow noise at 1000 Hz, dB | 13.7 dB (+/-0.05 dB) | 13.67 dB | -0.034 dB | 68 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 2:2005-05 Table 1, element 3 | Junction flow noise at 2000 Hz, dB | 6.2 dB (+/-0.05 dB) | 6.24 dB | 0.038 dB | 76 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 2:2005-05 Table 1, element 3 | Junction flow noise at 4000 Hz, dB | -1.5 dB (+/-0.05 dB) | -1.53 dB | -0.028 dB | 56 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 2:2005-05 Table 1, element 3 | Junction flow noise at 8000 Hz, dB | -9.6 dB (+/-0.05 dB) | -9.61 dB | -0.006 dB | 12 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 2:2005-05 Table 1, element 14 | Bend flow noise, worst octave deviation, dB | 0 dB (+/-0.05 dB) | 0.0496 dB | 0.0496 dB | 99 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 1:2001-07 Eq. (49) | Splitter silencer self-noise, A-weighted sound power level, dB | 52 dB (+/-0.5 dB) | 52.099 dB | 0.099 dB | 20 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 2:2005-05 Table 1, element 2 | Splitter silencer self-noise at 63 Hz, dB | 62.7 dB (+/-0.05 dB) | 62.74 dB | 0.036 dB | 72 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 2:2005-05 Table 1, element 2 | Splitter silencer self-noise at 125 Hz, dB | 58.3 dB (+/-0.05 dB) | 58.26 dB | -0.038 dB | 76 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 2:2005-05 Table 1, element 2 | Splitter silencer self-noise at 250 Hz, dB | 53.7 dB (+/-0.05 dB) | 53.72 dB | 0.019 dB | 38 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 2:2005-05 Table 1, element 2 | Splitter silencer self-noise at 500 Hz, dB | 49.4 dB (+/-0.05 dB) | 49.39 dB | -0.005 dB | 10 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 2:2005-05 Table 1, element 2 | Splitter silencer self-noise at 1000 Hz, dB | 45.4 dB (+/-0.05 dB) | 45.43 dB | 0.026 dB | 52 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 2:2005-05 Table 1, element 2 | Splitter silencer self-noise at 2000 Hz, dB | 41.9 dB (+/-0.05 dB) | 41.85 dB | -0.046 dB | 92 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 2:2005-05 Table 1, element 2 | Splitter silencer self-noise at 4000 Hz, dB | 38.6 dB (+/-0.05 dB) | 38.62 dB | 0.017 dB | 34 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 2:2005-05 Table 1, element 2 | Splitter silencer self-noise at 8000 Hz, dB | 35.6 dB (+/-0.05 dB) | 35.56 dB | -0.041 dB | 82 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 2:2005-05 Table 2, element 18 | End reflection of a 200 mm nozzle in a ceiling, worst octave deviation, dB | 0 dB (+/-0.05 dB) | 0.0449 dB | 0.0449 dB | 90 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 2:2005-05 Section 1.1 | Spectral assessment correction K_A, worst octave deviation, dB | 0 dB (+/-0 dB) | 0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 2:2005-05 Table 1, elements 1 to 3 | Chained level after fan, silencer and junction, worst octave deviation, dB | 0 dB (+/-0.1 dB) | 0.0719 dB | 0.0719 dB | 72 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 2:2005-05 Table 1, element 20 | Room attenuation of a ceiling diffuser, worst octave deviation, dB | 0 dB (+/-0.05 dB) | 0.0467 dB | 0.0467 dB | 93 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 1:2001-07 Eq. (36) | Room attenuation of a hemispherical outlet, dB | 5.7 dB (+/-0.05 dB) | 5.675 dB | -0.025 dB | 50 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 2:2005-05 Table 1, element 20 | Sound pressure level in room 102, worst octave deviation, dB | 0 dB (+/-0.5 dB) | 0.4913 dB | 0.4913 dB | 98 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 2:2005-05 Table 1, element 20 | Total sound pressure level in room 102, dB | 51.4 dB (+/-0.05 dB) | 51.384 dB | -0.016 dB | 32 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 2:2005-05 Table 1, element 20 | A-weighted sound pressure level in room 102, dB | 40 dB (+/-0.05 dB) | 40.037 dB | 0.037 dB | 74 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 1:2001-07 Section 6.3, Figure 26 | Reflection at a section change of ratio 0.05, dB | 7.4135 dB (+/-0.05 dB) | 7.4135 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 1:2001-07 Section 6.3, Figure 26 | Reflection at a section change of ratio 0.1, dB | 4.8073 dB (+/-0.05 dB) | 4.8073 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 1:2001-07 Section 6.3, Figure 26 | Reflection at a section change of ratio 0.2, dB | 2.5527 dB (+/-0.05 dB) | 2.5527 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 1:2001-07 Section 6.3, Figure 26 | Reflection at a section change of ratio 0.5, dB | 0.5115 dB (+/-0.05 dB) | 0.5115 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 1:2001-07 Section 6.3, Figure 26 | Reflection at a section change of ratio 1, dB | 0 dB (+/-0.05 dB) | 0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 1:2001-07 Section 6.3, Figure 26 | Reflection at a section change of ratio 2, dB | 0.5115 dB (+/-0.05 dB) | 0.5115 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 1:2001-07 Section 6.3, Figure 26 | Reflection at a section change of ratio 5, dB | 2.5527 dB (+/-0.05 dB) | 2.5527 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 1:2001-07 Section 6.3, Figure 26 | Reflection at a section change of ratio 7, dB | 3.5902 dB (+/-0.05 dB) | 3.5902 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 1:2001-07 Section 6.3, Figure 26 | Reflection at a section change of ratio 10, dB | 4.8073 dB (+/-0.05 dB) | 4.8073 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 1:2001-07 Section 6.3, Figure 26 | Bands a sudden increase still reflects in, of eight | 2 (+/-0.5) | 2 | 0 | 0 % | ![Pass][cv-pass] Pass | | VDI 2081 Blatt 1:2001-07 Section 6.3 | Ceiling VDI 3733 recommends for a section change, dB | 5 dB (+/-0.05 dB) | 5 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass |

CNOSSOS-EU railway source (Directive 2002/49/EC Annex II): 100% (8/8)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | CIRCABC CNOSSOS-EU railway emission test set | Line power of the 123 committed cases of the published test set, both source heights, 8 octave bands each, dB re 1 pW/m | <= 0.01 dB on 984 published band levels (123 cases) | 0.0055 dB | 0.0055 dB | 55 % | ![Pass][cv-pass] Pass | | Appendix G Tables G-1a and G-1b (roughness) | Wheel roughness by brake type (3 x 32) and rail roughness by class (2 x 35), dB | 166 coefficients identical | 166/166 coefficients | exact | 0 % | ![Pass][cv-pass] Pass | | Directive (EU) 2021/1226 Annex pt (20)(b), Table G-2 | Contact filter A3 for 5 wheel load and diameter combinations x 35 wavelengths, dB | 175 coefficients identical | 175/175 coefficients | exact | 0 % | ![Pass][cv-pass] Pass | | Appendix G Table G-3 (transfer functions) | Track transfer (8 x 24), wheel transfer (4 x 24) and superstructure transfer (24), dB per axle | 312 coefficients identical | 312/312 coefficients | exact | 0 % | ![Pass][cv-pass] Pass | | Appendix G Tables G-4 to G-7 | Impact roughness (35), traction (5 x 2 x 24), aerodynamic (2 x 24) and bridge (2 x 24), dB | 371 coefficients identical | 371/371 coefficients | exact | 0 % | ![Pass][cv-pass] Pass | | Annex II 2.3.2, formula (2.3.15) | Horizontal dipole directivity along the track: 10 lg(0,01) at phi = 0 | -20 dB (+/-0 dB) | -20 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | Annex II 2.3.2, formulae (2.3.13) and (2.3.14) | Aerodynamic speed law at v0 = 300 km/h reduces to Table G-6 verbatim | 50 lg 2 = 15.051 dB on every band | 0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | Annex II 2.3.2, formula (2.3.12) | Impact roughness at the tabulated joint density n_l = 0,01 per m | Table G-4 verbatim | 0 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass |

Railway rolling stock noise and its reference track (ISO 3095): 100% (23/23)

| Standard | Quantity | Expected (norm) | Computed | Δ | Used | Status | |:---|:---|:---|:---|:---|:---:|:---:| | ISO 3095:2013 Figure 2 | Default upper limit of the one-third octave band rail roughness, the 22 levels printed beside the points, 40 cm to 0,315 cm, dB re 1 µm | 22/22 printed levels | 22/22 printed levels | exact | 0 % | ![Pass][cv-pass] Pass | | EN 15610:2009 Annex B.9.2 | The roughness limit as the listing types it, 22 wavelengths and levels, against the published Figure 2 limit, dB re 1 µm | 22/22 listed levels | 22/22 listed levels | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 3095:2013 Figure 3 | Default lower limits of the vertical and lateral track decay rates, the table beside the curves, 250 Hz to 5 kHz, dB/m | 28/28 printed cells | 28/28 printed cells | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 3095:2013 7.5.1.1, Figure 10 | Microphone positions of the maximum level starting test for the 42, 54, 87 and 108 m units drawn, m behind the front of the unit | 42 m, position 1 = -10 m; 54 m, position 1 = -10 m; 54 m, position 2 = 17 m; 87 m, position 1 = -10 m; 87 m, position 2 = 33.5 m; 108 m, position 1 = -10 m; 108 m, position 2 = 17 m; 108 m, position 3 = 44 m | 42 m, position 1 = -10 m; 54 m, position 1 = -10 m; 54 m, position 2 = 17 m; 87 m, position 1 = -10 m; 87 m, position 2 = 33.5 m; 108 m, position 1 = -10 m; 108 m, position 2 = 17 m; 108 m, position 3 = 44 m | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 3095:2013 Table G.2 | Result of the standstill budget, the reading plus the mean value corrections, dB | 55.68 dB (+/-0.005 dB) | 55.68 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 3095:2013 Table G.2 | Combined standard uncertainty of the standstill budget, Formula G.5, dB | 0.83 dB (+/-0.005 dB) | 0.828 dB | -0.002 dB | 40 % | ![Pass][cv-pass] Pass | | ISO 3095:2013 Table G.2 | Expanded uncertainty of the standstill budget, k = 2, Formula G.6, dB | 1.66 dB (+/-0.005 dB) | 1.656 dB | -0.004 dB | 80 % | ![Pass][cv-pass] Pass | | ISO 3095:2013 Figure G.1 | Order of the bars by share of the variance: the nine distinct shares of the thirteen inputs, largest first, each with its inputs (seven inputs tie in three groups, which the figure draws in Table G.2 order) | 9/9 share groups | 9/9 share groups | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 3095:2013 Table G.1 | Standard uncertainty a/√3 (Formula G.2) of the eighteen rectangular rows whose print it gives, to the printed two decimals, dB | 18/18 rows | 18/18 rows | exact | 0 % | ![Pass][cv-pass] Pass | | ISO 3095:2005 3.14, Formulae 9 and 10 | Transit exposure level of a 12 s record at 84 dB over a 5 s pass-by: SEL + 10 lg(T0/Tp) against the library's L_Aeq,T + 10 lg(T/Tp), dB | 87.802112 dB (+/-0 dB) | 87.802112 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 3095:2013 3.14 and 6.5 | L_pAeq,T of a steady 1 kHz tone of 1 Pa amplitude, where A-weighting is 0 dB: 10 lg(1/2/p0²), dB | 90.969 dB (+/-0.02 dB) | 90.969 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | EN 15610:2009 3.3 and 7.4.2 | Band level of a 3 µm sinusoidal roughness of 1 cm wavelength on a Fourier line, Method A: 10 lg(A²/2), dB re 1 µm | 6.532125 dB (+/-0 dB) | 6.532125 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | EN 15610:2009 7.4.3 and EN 61260:1995 Table 1 | Bands of the Method B filter bank at 1 mm sampling within the class 0 limits of Table 1 on relative attenuation, graded up to the Nyquist wavenumber of the record, 0,5 m to 2,5 mm | 24/24 bands | 24/24 bands | exact | 0 % | ![Pass][cv-pass] Pass | | EN 15610:2009 7.4.3 and EN 61260:1995 4.8 and Table 1 | Unit sinusoids run through the Method B bank on a 40 m record sampled every millimetre, at the normalized frequencies G⁴ and G⁻⁴ map to (equation 10) about every band and at the two wavenumbers a decimated bank lets through (74,773 and 88,202 per metre): band outputs at and beyond them at least the +75 dB of class 0 below the midband tone | 554/554 band outputs | 554/554 band outputs | exact | 0 % | ![Pass][cv-pass] Pass | | EN 15610:2009 Annex B.9.2 | Bands Method B reports on a 19 m record sampled every millimetre, against wl_d, the 24 band centres the listing filters, 0,5 m to 2,5 mm | 24/24 bands | 24/24 bands | exact | 0 % | ![Pass][cv-pass] Pass | | EN 15610:2009 7.4.3 and EN 61260:1995 Table 1 | Band level of a 3 µm sinusoidal roughness at the 1 cm band centre, Method B: 10 lg(A²/2) within the ±0,15 dB of class 0 at the midband, dB re 1 µm | 6.532125 dB (+/-0.15 dB) | 6.532125 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | EN 15610:2009 7.4.3 | Length analysed by Method B in a 20 m record, once 2 m are discarded at either end after filtering: 20 - 2 × 2, m | 16 m (+/-0 m) | 16 m | 0 m | 0 % | ![Pass][cv-pass] Pass | | EN 15610:2009 7.4.3 NOTE 1 | The shortest record Method B analyses, 5 m: a 5 m record is analysed and one a millimetre shorter is refused | 2/2 records | 2/2 records | exact | 0 % | ![Pass][cv-pass] Pass | | EN 15610:2009 7.4.3 | A line analysed by Method B needs 15 m of record once 2 m are discarded at either end of each: a 15 m line holds, a 14,9 m one does not | 2/2 lines | 2/2 lines | exact | 0 % | ![Pass][cv-pass] Pass | | EN 15610:2009 7.3 | Curvature processing of an 11 mm pit 50 µm deep: the 0,375 m circle rests on its rims 6 mm from its middle, µm | -48.003072 µm (+/-0 µm) | -48.003072 µm | 0 µm | 0 % | ![Pass][cv-pass] Pass | | EN 15461:2008+A1:2010 Formula 1 and Annex A | Decay rate of a response A(0) exp(-βx) sampled every millimetre over 150 m, against 20 lg e^β, dB/m | 1.9978 dB/m (+/-0.02%) | 1.9978 dB/m | 0 dB/m | 6 % | ![Pass][cv-pass] Pass | | ISO 3095:2013 Annex C | Effect of a 3 dB exceedance in the 4 cm band at 36 km/h, carried whole onto 250 Hz, on a flat 25-band spectrum: 10 lg 25 - 10 lg(24 + 10^-0,3), dB | 0.087529 dB (+/-0 dB) | 0.087529 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass | | ISO 3095:2013 Annex D, Formula D.1 | Level increase of 60 dB measured over a 55 dB background, dB | 1.650885 dB (+/-0 dB) | 1.650885 dB | 0 dB | 0 % | ![Pass][cv-pass] Pass |

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