ANSI S12.57 : 2011
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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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
Hardcopy , PDF
13-07-2019
English
01-01-2011
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1 Scope
2 Normative references
3 Terms and definitions
4 Test environment
5 Instrumentation and measurement equipment
6 Location, installation and operation of noise
source under test
7 Measurement procedure
8 Calculation of sound power levels and sound
energy levels
9 Measurement uncertainty
10 Information to be recorded
11 Test report
Annex A (normative) - Evaluation of the excess of sound
pressure level at a given distance
Annex B (informative) - Recommendations for the location
of the reference sound source and the
microphones, if only one position is used for
the reference sound source
Annex C (normative) - Sound power level and sound energy
level under reference meteorological
conditions
Annex D (normative) - Calculation of A-weighted sound power
levels and A-weighted sound energy
levels from octave-band levels
Annex E (informative) - Guidance on the development of
information on measurement uncertainty
Bibliography
Defines a method for determining the sound power level or sound energy level of a noise source by comparing measured sound pressure levels emitted by a noise source (machinery or equipment) mounted in situ in a reverberant environment, with those from a calibrated reference sound source.
| Committee |
S12
|
| DevelopmentNote |
Also numbered as ISO 3747. (09/2003)
|
| DocumentType |
Standard
|
| Pages |
60
|
| PublisherName |
Acoustical Society of America
|
| Status |
Superseded
|
| SupersededBy | |
| 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/TS 7849-2:2009 | Acoustics — Determination of airborne sound power levels emitted by machinery using vibration measurement — Part 2: Engineering method including determination of the adequate radiation factor |
| ISO 4871:1996 | Acoustics — Declaration and verification of noise emission values of machinery and equipment |
| 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 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 |
| IEC 60942:2003 | Electroacoustics - Sound calibrators |
| ISO 9296:2017 | Acoustics — Declared noise emission values of information technology and telecommunications equipment |
| ISO 3740:2000 | Acoustics Determination of sound power levels of noise sources Guidelines for the use of basic standards |
| ISO 9613-1:1993 | Acoustics Attenuation of sound during propagation outdoors Part 1: Calculation of the absorption of sound by the atmosphere |
| ISO 14257:2001 | Acoustics — Measurement and parametric description of spatial sound distribution curves in workrooms for evaluation of their acoustical performance |
| 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/TS 7849-1:2009 | Acoustics — Determination of airborne sound power levels emitted by machinery using vibration measurement — Part 1: Survey method using a fixed radiation factor |
| ISO 80000-8:2007 | Quantities and units Part 8: Acoustics |
| 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 6926:2016 | Acoustics Requirements for the performance and calibration of reference sound sources used for the determination of sound power levels |
| 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 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 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 3745:2012 | 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 |
| IEC 61260:1995 | Electroacoustics - Octave-band and fractional-octave-band filters |
| ISO/IEC Guide 98-3:2008 | Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995) |
| 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 |
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