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Norm
ÖNORM EN ISO 3741
Issue date: 2009 12 01
Acoustics - Determination of sound power levels of noise sources using sound pressure - Precision methods for reverberation rooms (ISO 3741:1999, including Cor 1:2001)
This International Standard specifies a direct method and a comparison method for determining the sound power level that would be produced by a source operating in an env...
Withdrawn: 2011 01 01
Publisher:
Austrian Standards International
Format:
Digital | 23 Pages
Language:
German
| English
Currently valid:
Optionally co-design standards:
ICS
This International Standard specifies a direct method and a comparison method for determining the sound power level that would be produced by a source operating in an environment at standard meteorological conditions corresponding to a characteristic impedance of rc = 400 N.s/m3 (where r is the density of air and c is the speed of sound). It specifies test room requirements, source location and general rules for operating conditions, instrumentation and techniques for obtaining an estimate of mean-square sound pressure levels from which the sound power levels of the source in octave or one-third-octave bands are calculated with a grade 1 accuracy. The quantities to be measured are time-averaged sound pressure levels in frequency bands.
ÖNORM EN ISO 3741
2011 01 01
Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound...
Norm
ÖNORM EN ISO 3741
2009 12 01
Acoustics - Determination of sound power levels of noise sources using sound pressure - Precision me...
Norm
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ÖNORM EN ISO 3741
2003 03 01
Acoustics - Determination of sound power levels of noise sources using sound pressure - Precision me...
Norm
ÖNORM EN ISO 3741
1999 11 01
Acoustics - Determination of sound power levels of noise sources using sound pressure - Precision me...
Norm
ÖNORM EN 23742
1992 07 01
Acoustics - Determination of sound power levels of noise sources - Precision methods for discrete-fr...
Norm
ÖNORM EN 23741
1992 07 01
Acoustics - Determination of sound power levels of noise sources - Precision methods for broad-band ...
Norm
ÖNORM S 5031
1977 03 01
Determination of sound power of noise sources; method in reverberation room
Norm
Norm
Issue date :
2003 05 14
Acoustics — Measurement of sound absorption in a reverberation room
Norm
Issue date :
1996 12 19
Acoustics — Declaration and verification of noise emission values of machinery and equipment
Norm
Issue date :
1999 12 02
Acoustics — Requirements for the performance and calibration of reference sound sources used for the determination of sound power levels (Corrected version 2001-02)
Norm
Issue date :
1996 12 19
Acoustics — Noise emitted by machinery and equipment — Rules for the drafting and presentation of a noise test code
Norm
Issue date :
1996 12 19
Acoustics — Declaration and verification of noise emission values of machinery and equipment
Norm
Issue date :
2016 01 12
Acoustics — Requirements for the performance and calibration of reference sound sources used for the determination of sound power levels
Norm
Issue date :
1985 12 19
Acoustics — Statistical methods for determining and verifying stated noise emission values of machinery and equipment — Part 1: General considerations and definitions
Norm
Issue date :
1985 12 19
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
Norm
Issue date :
1996 12 19
Acoustics — Noise emitted by machinery and equipment — Rules for the drafting and presentation of a noise test code
Norm
Issue date :
2011 01 01
Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Precision methods for reverberation test rooms (ISO 3741:2010)
