AS 5336:2019
Current
The latest, up-to-date edition.
Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Precision methods for anechoic rooms and hemi - anechoic rooms
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English
08-05-2019
Important note : All end users must be registered with an Account prior to user licenses being assigned.The objective of this Standard is to specify methods for measuring the sound pressure levels on a measurement surface enveloping a noise source (machinery and equipment) in an anechoic room or a hemi-anechoic room, in order to determine the sound power level or sound energy level produced by the noise source.
| Committee |
EV-010
|
| DocumentType |
Standard
|
| ISBN |
978 1 76072 450 4
|
| Pages |
63
|
| PublisherName |
Standards Australia
|
| Status |
Current
|
| Supersedes | |
| UnderRevision |
This International Standard specifies methods for measuring the sound pressure levels on a measurement surface enveloping a noise source (machinery or equipment) in an anechoic room or a hemi-anechoic room.
The sound power level (or, in the case of impulsive or transient noise emission, the sound energy level)
produced by the noise source, in frequency bands of width one-third octave or with frequency weighting A
applied, is calculated using those measurements, including corrections to allow for any differences between the meteorological conditions at the time and place of the test and those corresponding to a reference characteristic acoustic impedance.
In general, the frequency range of interest includes the one-third-octave bands with mid-band frequencies from 100 Hz to 10 000 Hz. In practice, the range is extended or restricted to frequencies beyond or within these limits, to those between which the test room is qualified for the purposes of the measurements.
| Standards | Relationship |
| ISO 3745:2012 | Identical |
First published as AS 5336:2019.
Reissued incorporating Amendment No. 1 (August 2019).
| ISO 3746:2010 | 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 |
| ISO 5725-5:1998 | Accuracy (trueness and precision) of measurement methods and results — Part 5: Alternative methods for the determination of the precision of a standard measurement method |
| 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 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 140-3:1995 | Acoustics — Measurement of sound insulation in buildings and of building elements — Part 3: Laboratory measurements of airborne sound insulation of building elements |
| ISO 12001:1996 | Acoustics — Noise emitted by machinery and equipment — Rules for the drafting and presentation of a noise test code |
| ISO 3744:2010 | Acoustics Determination of sound power levels and sound energy levels of noise sources using sound pressure Engineering methods for an essentially free field over a reflecting plane |
| ISO 5725-4:1994 | Accuracy (trueness and precision) of measurement methods and results Part 4: Basic methods for the determination of the trueness of a standard measurement method |
| ISO 3743-2:2018 | 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 3741:2010 | Acoustics Determination of sound power levels and sound energy levels of noise sources using sound pressure Precision methods for reverberation test rooms |
| ISO/TR 25417:2007 | Acoustics Definitions of basic quantities and terms |
| ISO 11690-1:1996 | Acoustics Recommended practice for the design of low-noise workplaces containing machinery Part 1: Noise control strategies |
| 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 |
| IEC 61672-1:2013 | Electroacoustics - Sound level meters - Part 1: Specifications |
| IEC 60942:2017 | Electroacoustics - Sound calibrators |
| ISO 5725-1:1994 | Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions |
| ISO 11201:2010 | Acoustics Noise emitted by machinery and equipment Determination of emission sound pressure levels at a work station and at other specified positions in an essentially free field over a reflecting plane with negligible environmental corrections |
| ISO/IEC Guide 98-3:2008 | Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995) |
| ISO 6926:2016 | Acoustics Requirements for the performance and calibration of reference sound sources used for the determination of sound power levels |
| ISO 9613-1:1993 | Acoustics Attenuation of sound during propagation outdoors Part 1: Calculation of the absorption of sound by the atmosphere |
| ISO 80000-8:2007 | Quantities and units Part 8: Acoustics |
| ISO 9614-2:1996 | Acoustics — Determination of sound power levels of noise sources using sound intensity — Part 2: Measurement by scanning |
| IEC 61260:1995/AMD1:2001 | Amendment 1 - Electroacoustics - Octave-band and fractional-octave-band filters |
| ISO 9614-3:2002 | Acoustics — Determination of sound power levels of noise sources using sound intensity — Part 3: Precision method for measurement by scanning |
| ISO 4871:1996 | Acoustics — Declaration and verification of noise emission values of machinery and equipment |
| ISO 26101:2017 | Acoustics Test methods for the qualification of free-field environments |
| ISO 3747:2010 | Acoustics Determination of sound power levels and sound energy levels of noise sources using sound pressure Engineering/survey methods for use in situ in a reverberant environment |
| ISO 3740:2019 | Acoustics — Determination of sound power levels of noise sources — Guidelines for the use of basic standards |
| ISO 3743-1:2010 | Acoustics Determination of sound power levels and sound energy levels of noise sources using sound pressure Engineering methods for small movable sources in reverberant fields Part 1: Comparison method for a hard-walled test room |
| ISO 5725-2:1994 | Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method |
| IEC 61260:1995 | Electroacoustics - Octave-band and fractional-octave-band filters |
| ISO 5725-3:1994 | Accuracy (trueness and precision) of measurement methods and results — Part 3: Intermediate measures of the precision of a standard measurement method |
| 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 5725-6:1994 | Accuracy (trueness and precision) of measurement methods and results — Part 6: Use in practice of accuracy values |
| ISO 9614-1:1993 | Acoustics — Determination of sound power levels of noise sources using sound intensity — Part 1: Measurement at discrete points |
| IEC 61183:1994 | Electroacoustics - Random-incidence and diffuse-field calibration of sound level meters |
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