BS ISO 3744 : 1994 AMD 8936
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
ACOUSTICS - DETERMINATION OF SOUND POWER LEVELS OF NOISE SOURCES USING SOUND PRESSURE - ENGINEERING METHOD IN AN ESSENTIALLY FREE FIELD OVER A REFLECTING PLANE
12-15-1995
12-06-2012
1 Scope
2 Normative references
3 Definitions
4 Acoustic environment
5 Instrumentation
6 Installation and operation of source under test
7 Measurement of sound pressure levels
8 Calculation of surface sound pressure level and
sound power level
9 Information to be recorded
10 Information to be reported
Annexes
A Qualification procedures for the acoustic
environment
B Microphone array on the hemispherical measurement
surface
C Microphone array on the parallelepiped measurement
surface
D Guidelines for the detection of impulsive noise
E Guidelines for the determination of the directivity
index
F Bibliography
Specifies a method for measuring the sound pressure levels on a measurement surface enveloping a noise, in essentially free field conditions near one or more reflecting planes, in order to calculate the sound power level produced by the noise source. Coverage includes acoustic environment, measurement of sound pressure levels, instrumentation, and installation and operating of source under test. Also gives detailed definitions and annexes. BS AMD 8936 RENUMBERS THIS STANDARD
| Committee |
EPC/1
|
| DevelopmentNote |
Renumbered and superseded by BS EN ISO 3744. Supersedes BS 4196-4(1981) and 90/56052 DC. (10/2005)
|
| DocumentType |
Standard
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| ISO 3744:2010 | Identical |
| BS EN 61063:1996 | Acoustics. Measurement of airborne noise emitted by steam turbines and driven machinery |
| ISO 2204:1979 | Acoustics Guide to International Standards on the measurement of airborne acoustical noise and evaluation of its effects on human beings |
| ISO 4871:1996 | Acoustics — Declaration and verification of noise emission values of machinery and equipment |
| ISO 354:2003 | Acoustics — Measurement of sound absorption in a reverberation room |
| 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 |
| IEC 60942:2003 | Electroacoustics - Sound calibrators |
| 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 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 60225:1966 | Octave, half-octave and third-octave band filters intended for the analysis of sounds and vibrations |
| ISO 6926:2016 | Acoustics Requirements for the performance and calibration of reference sound sources used for the determination of sound power levels |
| 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 60651:1979+AMD1:1993+AMD2:2000 CSV | Sound level meters |
| IEC 60804:2000 | Integrating-averaging sound level meters |
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