ASA/ANSI S12.56/ISO 3746:2011(R2025)
Current
Current
The latest, up-to-date edition.
Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Survey method using an enveloping measurement surface over a reflecting plane (a nationally adopted international standard)
Available format(s)
Hardcopy , PDF
Language(s)
English
Published date
11-06-2025
Publisher
€323.40
Excluding VAT
This American National Standard specifies methods for determining the sound power level or sound energy level of a noise source from sound pressure levels measured on a surface enveloping a noise source (machinery or equipment) in a test environment for which requirements are given.
| DocumentType |
Standard
|
| Pages |
68
|
| PublisherName |
Acoustical Society of America
|
| Status |
Current
|
| Supersedes |
| ISO 7574-2:1985 | Acoustics — Statistical methods for determining and verifying stated noise emission values of machinery and equipment — Part 2: Methods for stated values for individual machines |
| ISO 80000-8:2020 | Quantities and units — Part 8: Acoustics |
| ISO 3743-2:1994 | Acoustics — Determination of sound power levels of noise sources using sound pressure — Engineering methods for small, movable sources in reverberant fields — Part 2: Methods for special reverberation test rooms |
| ISO 7574-4:1985 | Acoustics — Statistical methods for determining and verifying stated noise emission values of machinery and equipment — Part 4: Methods for stated values for batches of machines |
| ISO/TR 25417:2007 | Acoustics — Definitions of basic quantities and terms |
| ISO 9614-1:1993 | Acoustics — Determination of sound power levels of noise sources using sound intensity — Part 1: Measurement at discrete points |
| ISO 9296:2017 | Acoustics — Declared noise emission values of information technology and telecommunications equipment |
| ISO 3745:1977 | Acoustics — Determination of sound power levels of noise sources — Precision methods for anechoic and semi-anechoic rooms |
| ISO 3743-1:1994 | Acoustics — Determination of sound power levels of noise sources — Engineering methods for small, movable sources in reverberant fields — Part 1: Comparison method for hard-walled test rooms |
| ISO 11201:1995 | Acoustics — Noise emitted by machinery and equipment — Measurement of emission sound pressure levels at a work station and at other specified positions — Engineering method in an essentially free field over a reflecting plane |
| ISO 9614-2:1996 | Acoustics — Determination of sound power levels of noise sources using sound intensity — Part 2: Measurement by scanning |
| ISO 7574-1:1985 | Acoustics — Statistical methods for determining and verifying stated noise emission values of machinery and equipment — Part 1: General considerations and definitions |
| ISO 3740:1980 | Acoustics — Determination of sound power levels of noise sources — Guidelines for the use of basic standards and for the preparation of noise test codes |
| ISO 11202:1995 | Acoustics — Noise emitted by machinery and equipment — Measurement of emission sound pressure levels at a work station and at other specified positions — Survey method in situ |
| ISO 3747:2000 | Acoustics — Determination of sound power levels of noise sources using sound pressure — Comparison method in situ |
| ISO 6926:2016 | Acoustics — Requirements for the performance and calibration of reference sound sources used for the determination of sound power levels |
| ISO 11203:1995 | Acoustics — Noise emitted by machinery and equipment — Determination of emission sound pressure levels at a work station and at other specified positions from the sound power level |
| ISO 7574-3:1985 | Acoustics — Statistical methods for determining and verifying stated noise emission values of machinery and equipment — Part 3: Simple (transition) method for stated values for batches of machines |
| ISO 4871:1984 | Acoustics — Noise labelling of machinery and equipment |
| ISO 11200:1995 | Acoustics — Noise emitted by machinery and equipment — Guidelines for the use of basic standards for the determination of emission sound pressure levels at a work station and at other specified positions |
| ISO 3741:1999 | Acoustics — Determination of sound power levels of noise sources using sound pressure — Precision methods for reverberation rooms |
| ISO 11204:2010 | Acoustics — Noise emitted by machinery and equipment — Determination of emission sound pressure levels at a work station and at other specified positions applying accurate environmental corrections |
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