BS 4196-2:1991
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Sound power levels of noise sources Precision methods for determination of sound power levels for discrete-frequency and narrow-band sources in reverberation rooms
Hardcopy , PDF
15-06-2000
English
29-03-1991
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Committees responsible
National foreword
Method
0.1 Related International Standards
0.2 Synopsis of ISO 3742
0.3 Introduction
1 Scope and field of application
2 References
3 Determination of the significance of discrete-
frequency components and narrow bands of noise
4 Number of microphone positions and source locations
Annex
A Alternative qualification procedure for the
measurement of discrete-frequency components
Tables
1 International Standards specifying various methods
for determining the sound power levels of machines
and equipment
2 Uncertainty in determining sound levels of
discrete-frequency noise sources in reverberation
rooms
3 Procedures to be followed in the measurement of
discrete-frequency components or narrow bands of
noise
4 Number of microphone positions required and
constant K for determining number of source
locations
5 Test frequencies (or periods) for qualification of
facility for measuring sounds containing
significant discrete-frequency components
6 Maximum allowable standard deviation of Li
Explains special requirements that are necessary for accurate determinations of the sound power when discrete frequencies or narrow bands of noise are radiated by a source.
| Committee |
EH/1
|
| DevelopmentNote |
SUPERSEDES BS 4196: PART 2: 1981
|
| DocumentType |
Standard
|
| Pages |
18
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| ISO 3742:1988 | Identical |
| BS 4856-4:1997 | Methods for testing and rating fan coil units, unit heaters and unit coolers Determination of sound power levels of fan coil units, unit heaters and unit coolers using reverberating rooms |
| BS 7458-1:1991 | Test code for the measurement of airborne noise emitted by rotating electrical machinery Engineering method for free-field conditions over a reflecting plane |
| BS EN 61096:1993 | Methods of measuring the characteristics of reproducing equipment for digital audio compact discs |
| ISO 2204:1979 | Acoustics Guide to International Standards on the measurement of airborne acoustical noise and evaluation of its effects on human beings |
| 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 354:2003 | Acoustics — Measurement of sound absorption in a reverberation room |
| ISO 266:1997 | Acoustics — Preferred frequencies |
| 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 3740:2000 | Acoustics Determination of sound power levels of noise sources Guidelines for the use of basic standards |
| 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 |
| IEC 60225:1966 | Octave, half-octave and third-octave band filters intended for the analysis of sounds and vibrations |
| ISO 1680-2:1986 | Acoustics Test code for the measurement of airborne noise emitted by rotating electrical machinery Part 2: Survey method |
| 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 |
| ISO 1680-1:1986 | Acoustics Test code for the measurement of airborne noise emitted by rotating electrical machinery Part 1: Engineering method for free-field conditions over a reflecting plane |
| IEC 60651:1979+AMD1:1993+AMD2:2000 CSV | Sound level meters |
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