Standard Swedish standard · SS-EN ISO 3745:2009

Acoustics - Determination of sound power levels of noise sources using sound pressure - Precision methods for anechoic and hemi-anechoic rooms (ISO 3745:2003)

Status: Withdrawn

· Replaced by: SS-EN ISO 3745:2012
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Standard Swedish standard · SS-EN ISO 3745:2009

Acoustics - Determination of sound power levels of noise sources using sound pressure - Precision methods for anechoic and hemi-anechoic rooms (ISO 3745:2003)
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Scope
This International Standard specifies methods for measuring the sound pressure levels on a measurement surface enveloping a noise source in anechoic and hemi-anechoic rooms, in order to determine the sound power level or sound energy level produced by the noise source. It gives requirements for the test environment and instrumentation, as well as techniques for obtaining the surface sound pressure level from which the sound power level or sound energy level is calculated, leading to results which have a grade 1 accuracy. The methods specified in this International Standard are suitable for measurements of all types of noise. The noise source can be a device, machine, component or sub-assembly. The maximum size of the source under test depends on the radius of the hypothetical sphere (or hemisphere) used as the enveloping measurement surface.

Subjects

Acoustics (14.020) General (17.120.01) General (17.140.01)


Buy this standard

Standard Swedish standard · SS-EN ISO 3745:2009

Acoustics - Determination of sound power levels of noise sources using sound pressure - Precision methods for anechoic and hemi-anechoic rooms (ISO 3745:2003)
Subscribe on standards - Read more Dölj
Price: 1 487 SEK
standard ikon pdf

PDF

Price: 1 487 SEK
standard ikon

Paper

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Product information

Language: English

Written by: Svenska institutet för standarder

International title:

Article no: STD-70306

Edition: 2

Approved: 8/3/2009

No of pages: 60

Replaces: SS-EN ISO 3745:2004/AC:2006 , SS-EN ISO 3745:2004

Replaced by: SS-EN ISO 3745:2012