Measure the sound of a building's equipment and activities by the ISO 16032 engineering method, from its draft - #905
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📝 WalkthroughWalkthroughThe pull request adds API exports, plots, and conformance checks for the ISO/DIS 16032:2023 service-equipment measurement method. It adds English and Spanish guides, API references, and errata entries, updates related documentation indexes, and raises the reported conformance totals. ChangesISO 16032 service-equipment measurement
Laboratory-insulation LLM index
Priority: ➖ Normal Estimated code review effort: 4 (Complex) | ~45 minutes Merge Risk: 🔵 Low · up to The measurement documentation can mislead readers about normalization inputs and available checks. Correct these localized claims; the established issues do not indicate a runtime blocker. Security Architecture ReviewSecurity architecture risk: 🔵 Low · up to The inspected API paths perform numerical calculations and plotting without introducing privileged operations. Measurement sequencing remains caller-managed, and returned arrays remain mutable. No introduced security vulnerability was established, but downstream authority expectations and complete security coverage remain unresolved. Retained concerns Security review detailsSecurity Blast Radius
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## standards/iso-17534-1-software-quality #905 +/- ##
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- Coverage 96.83% 96.82% -0.02%
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1664/1664 checks pass across 105 domains and 507 standards (211 normative designations, 122 further published sources). Used in the tables below is how much of that clause's published tolerance the deviation consumes: 100 % sits exactly on the limit, 5 % 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. New checks (218)
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| Python Version | Tests | Failures | Coverage | Status |
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| macos-latest-3.13 | 24025 | 0 | 96.8% |  Passed |
| macos-latest-3.14 | 24025 | 0 | 96.8% | Passed |
| ubuntu-latest-3.13 | 24025 | 0 | 96.8% | Passed |
| ubuntu-latest-3.14 | 24025 | 0 | 96.8% | Passed |
| windows-latest-3.13 | 24025 | 0 | 96.8% | Passed |
| windows-latest-3.14 | 24025 | 0 | 96.8% | Passed |
Full report at this commit: docs/CONFORMANCE.md · docs/conformance.json · full CI artifacts
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Inline comments:
Review comments at @docs/buildings/insulation/service-equipment-noise.md:
- Line 395: Update the example to specify equivalent absorption area rather than
room floor area, preserving the stated 16 m² value. In
docs/buildings/insulation/service-equipment-noise.md at 395-395 and
site/src/content/docs/buildings/insulation/service-equipment-noise.mdx at
421-421, use “a room with an equivalent absorption area of 16 m²”; in
site/src/content/docs/es/buildings/insulation/service-equipment-noise.mdx at
435-435, use “una sala con un área de absorción equivalente de 16 m²”.
Review comments at @llms-full.txt:
- Line 10389: The “implemented in full” claim overstates the coverage described
by the “Not covered” section. Revise the claim in the service-equipment-noise
documentation to accurately qualify implementation coverage, keeping the draft
citation intact.
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.zenodo.jsonCHANGELOG.mdREADME.mdREADME_PYPI.mddocs/CONFORMANCE.mddocs/ERRATA.es.mddocs/ERRATA.mddocs/README.mddocs/buildings/index.mddocs/buildings/insulation/index.mddocs/buildings/insulation/insulation-survey.mddocs/buildings/insulation/service-equipment-noise.mddocs/conformance.jsondocs/reference/api/index.mddocs/start/getting-started.mddocs/start/why-phonometry.mdllms-full.txtllms.txtscripts/api_taxonomy.pyscripts/conformance/domains/service_equipment.pyscripts/conformance/references.pyscripts/conformance_report.pyscripts/figures/building.pyscripts/figures/registry.pyscripts/generate_graphs.pyscripts/generate_llms.pysite/public/llms/llms-buildings-insulation-laboratory.txtsite/public/llms/llms-buildings-insulation.txtsite/public/llms/llms-buildings.txtsite/public/llms/llms-start.txtsite/src/content/docs/buildings/index.mdxsite/src/content/docs/buildings/insulation/index.mdxsite/src/content/docs/buildings/insulation/insulation-survey.mdxsite/src/content/docs/buildings/insulation/service-equipment-noise.mdxsite/src/content/docs/es/buildings/index.mdxsite/src/content/docs/es/buildings/insulation/index.mdxsite/src/content/docs/es/buildings/insulation/insulation-survey.mdxsite/src/content/docs/es/buildings/insulation/service-equipment-noise.mdxsite/src/content/docs/es/index.mdxsite/src/content/docs/es/reference/conformance.mdxsite/src/content/docs/es/reference/errata.mdsite/src/content/docs/es/start/guides.mdsite/src/content/docs/index.mdxsite/src/content/docs/reference/api/building/service-equipment.mdsite/src/content/docs/reference/api/index.mdsite/src/content/docs/reference/conformance.mdxsite/src/content/docs/reference/errata.mdsite/src/content/docs/start/guides.mdsite/src/data/home.tssite/src/data/topics.mjssrc/phonometry/_plot/building.pysrc/phonometry/building/__init__.pysrc/phonometry/building/measurement/__init__.pysrc/phonometry/building/measurement/service_equipment.pytests/building/measurement/test_service_equipment.pytests/building/test_building_plots.pytests/reference_data/service_equipment.pytests/result_factories.pytests/test_result_plots.py
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… 16032 engineering method, from its draft The engineering method of ISO 16032 gives the sound pressure level a building's own equipment makes in a room: water taps, water closets, ventilation, lifts and, new in the revision, activities nobody on site controls, such as a bar downstairs. building.service_equipment_level takes the readings in one of the three Table 1 quantities through the average, the Clause 9 background correction, the standardization to T0 or the normalization to A0 and the A- and C-weighted single numbers with their Table 2 reproducibility; the position ladder of 7.4.1, the placement checks of 7.2 and 7.3 and the Annex B operating conditions come with it, and every result has its .plot(). The only text of the revision available is its draft, ISO/DIS 16032:2023, so the draft is implemented in full and cited as a draft; a guide in English and Spanish takes a water closet from its readings to L_A,eq,nT, and six printed defects of the draft go into the errata registry.
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This adds the engineering method of ISO 16032 for the sound pressure level a building's own equipment makes in a room: water taps, showers, baths and water closets, ventilation, heating and cooling, lifts, rubbish chutes, auxiliary plant and car-park doors, and, new in the revision, activities in or near the building that nobody on site controls, such as a bar downstairs or a sports hall. It lives in
building.measurement.service_equipment, exported fromphonometry.building, next to the ISO 10052 survey method for the same quantities.Which text. The only text of the revision I have is its draft, ISO/DIS 16032:2023, in the German publication E DIN EN ISO 16032:2023-05 (German and English text). With no other source for this part, everything implemented follows the draft, and it is cited as a draft everywhere, with its own clause numbers. The withdrawn BS EN ISO 16032:2004 is used only to say what the revision changes. Clause 1 intends the method for rooms of about 300 m³ or less, and the guide says so.
The chain.
building.service_equipment_leveltakes the band spectra of every reading in one of the three Table 1 quantities (quantity="Smax","Fmax"or"eq"), in one-third octaves from 25 Hz to 10 kHz or octaves from 31.5 Hz to 8 kHz. It averages them by Formula (1), rounded to 0.1 dB (7.5); corrects the background by Clause 9, with no correction at a margin of 10 dB or more, Formulae (7) to (9) from 4 dB, and below 4 dB the correction held at 2.2 dB and the band marked as an upper limit; standardizes to T0 by Formula (5) or normalizes to A0 = 10 m² by Formula (6) over 50 Hz to 5000 Hz only (octaves 63 Hz to 4000 Hz), as 7.7 asks; and sums the A-weighted value over the restricted or the extended range and the C-weighted value over the extended range with the corrections of Annex A, rounded to whole decibels (7.8). The single numbers are keyed by the Table 1 notation ("LA,eq,nT","LC,Fmax"...), and the result says which of them are upper limits (upper_limit("A"),upper_limit("C")), which bands entered unstandardized, and the Table 2 reproducibility of every band and every single number. A complex or non-numeric input is refused by name, so a complex spectrum is never rated by its real part.Positions.
building.loudest_cornerpicks position 1 from the C-weighted corner readings (7.2), leaving out the corners named by whole indices counted from 0.building.check_service_equipment_positionsholds the reverberant-field positions of a rectangular room to the distances and heights of 7.3 and the corner position to the heights of 7.2; the two preferences of the draft, the corner 0.5 m from its walls and the positions 1.5 m apart, are reported aspreferred_corner_wall_distanceandpreferred_separationand do not decide the verdict.building.check_position_spreadis the ladder of 7.4.1 that decides between three, six and nine readings; once the readings are 9.0 dB apart it answers"interrupt"at once, since more readings can only widen the spread.building.additional_microphone_positionplaces the extra position of 7.9 for a source in the room.Background and operating conditions.
building.service_equipment_background_correctionis Clause 9 on its own; a margin of exactly 10.0 dB or 4.0 dB between levels given to 0.1 dB falls on the side the clause prints, whatever their difference comes out as in binary.building.SERVICE_EQUIPMENT_OPERATING_CONDITIONSholds how Annex B runs each kind of equipment asOperatingConditionrecords, the activities and unmonitored sources of B.10 included, with the water tap described mixer by mixer as B.2.2 describes it. The printed tables areSERVICE_EQUIPMENT_WEIGHTING(Table A.1),SERVICE_EQUIPMENT_REPRODUCIBILITYandSERVICE_EQUIPMENT_WEIGHTED_REPRODUCIBILITY(Table 2), read-only all the way down.Figures and guide. Every result has
.plot()in English and Spanish: the spectrum through each step of the method, the readings of the ladder against the spread their stage allows, the plan of the room with the numbered positions and the zone their clearance leaves, and the background correction. A new guide in both languages, next to the ISO 10052 one, takes a water closet heard in the bedroom next door from its readings to L_A,eq,nT, and says what the library does not check (the room volume, the 0.2 m from obstacles, the calibrator drift, the notes of Clause 9 and 7.8, and the specific frequency range 4.2 admits but 7.8 does not use). The Buildings and Sound insulation overviews now say that this method checks its own positions and corrects its field levels for the background, and ISO 16032 joins the standards the area lists in the guides index, the README and the home page. Outside the new method, the band-index axis of the heavy-impact and plenum figures, drawn when no band centres are given, now reads in Spanish on a Spanish figure.Printed defects. Six are in the errata registry, all unreported because the document is a draft under comment: the one-third-octave C-weighting of Table A.1, which prints −5 dB at 25 Hz and 0 dB from 1600 Hz up against IEC 61672-1 and against the table's own octave column (the library takes those ten cells from IEC 61672-1); the background correction that 7.6 sends to Clause 8; the corner selection that B.10 sends to Clause 6; the ladder of 7.4.1, with no rule at exactly 6.0 dB or 9.0 dB and no step for readings already 9.0 dB apart before the interruption paragraph; the S-weighted maximum level listed twice under Formula (5); and the band definitions of 4.2 credited to "IEC 612604.3".
What breaks. Nothing. Every name is new, and the only change to existing behaviour is the Spanish axis label above, so there is nothing to migrate.
How it was verified. The draft prints no worked example, so the 16 conformance rows of the new domain stand on the numbers it does print and on values worked by hand: the 2.2 dB of a 4 dB margin (Clause 9, PDF page 48, printed p. 10), the A- and C-weighting cells of Table A.1 (PDF page 50, printed p. 12), the 38 cells of Table 2 (PDF page 48, printed p. 10), and closed forms for Formula (1), the Clause 9 margins of 10.0 dB and 4.0 dB on decimal levels, Formula (5) in one-third octaves and octaves, Formula (6) for an equivalent absorption area of 16 m² (a 40 dB band becomes 42.04 dB), the rounding of 7.8, the ladder of 7.4.1, every distance and height limit of 7.3, and the corner height and preferred wall distance of 7.2, met exactly and missed by 0.01 m, and the positions of 7.9. Every clause, formula and table was read on the pages of the English text, PDF pages 39 to 60 (printed pp. 1 to 22), and the defects were confirmed on the German text as well. The tests fail if Formula (6) is inverted, if 7.8 truncates or rounds half to even, if the octave standardization range widens, if any distance or height limit the position check judges moves by 0.01 m, or if the separation leaves out the corner position or the distance to the surfaces leaves out the floor and the ceiling.
Gates. On this branch ruff check and ruff format are clean (1240 files), mypy is clean on 650 files of src, scripts, the stub and the typing tests, and bandit is clean; the conformance report (1664 of 1664 checks), the API reference, the llms files, the site reports, the catalogue data and the PyPI readme regenerate without a diff; the test modules this change adds or touches pass (372 passed); and the checks on frozen constants, parameter units, published sources, errata evidence, em dashes, digit grouping and markdown hazards, the static checks of the documentation snippets (6860 blocks over 704 pages), the guides index (156 guides) and the language parity pass. On the branch at the top of this stack, which carries this change as it is here, the full suite passes (25 145 passed, 71 skipped), every documentation snippet runs (7159 blocks over 723 pages), the site builds (971 pages) with 0 type errors, 0 warnings and clean HTML validation, and a fresh regeneration of the figures and the example fiches reproduces all 3172 committed figures and 75 fiches unchanged and passes the figure checks on contrast, language, annotations, ticks, decimal points, legends, tick and text clearance and minus signs.