ANSI/ASA S12.56/ISO 3746 : 2011(R2016)
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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
Hardcopy , PDF
29-06-2020
English
06-05-2016
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1 Scope
2 Normative references
3 Terms and definitions
4 Test environment
5 Instrumentation
6 Definition, location, installation and operation
of noise source under test
7 Reference box and measurement surface
8 Determination of sound power levels and
sound energy levels
9 Measurement uncertainty
10 Information to be recorded
11 Test report
Annex A (normative) - Determination of the
environmental correction
Annex B (normative) - Microphone arrays on a
hemispherical measurement surface
Annex C (normative) - Microphone arrays on a
parallelepiped measurement surface
Annex D (informative) - Guidelines on the development
of information on measurement uncertainty
Bibliography
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.
| Committee |
S12
|
| DevelopmentNote |
Also numbered as ISO 3746. (09/2003) Supersedes ANSI S12.36 (02/2006)
|
| DocumentType |
Standard
|
| Pages |
67
|
| ProductNote |
Reconfirmed 2016
|
| PublisherName |
Acoustical Society of America
|
| Status |
Superseded
|
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