Standard Swedish standard · SS-EN ISO 3743-1:2009

Acoustics - Determination of sound power levels of noise sources - Engineering methods for small, movable sources in reverberant fields - Part 1: Comparison method for hard-walled test rooms (ISO 3743-1:1994)

Status: Withdrawn

· Replaced by: SS-EN ISO 3743-1:2010
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Standard Swedish standard · SS-EN ISO 3743-1:2009

Acoustics - Determination of sound power levels of noise sources - Engineering methods for small, movable sources in reverberant fields - Part 1: Comparison method for hard-walled test rooms (ISO 3743-1:1994)
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Scope
This part of ISO 3743 specifies a relatively simple engineering method for determining the sound power levels of small, movable noise sources. The measurements are carried out when the source is installed in a hard-walled test room. A comparison method is used to determine to the octave-band sound power levels of the source. The spartial average (octave-band) sound pressure levels produced by the source under test are compared to the spatial average (octave-bamd) sound pressure levels produced by a reference sound source of known sound power output. The difference in sound pressure levels is equal to the difference in sound power levels if conditions are the same for both sets of measurements. The A-weighted sound power level is then calculated from the octave.band sound power levels.NOTE 1 Precision methods for the determination of sound power levels of small noise sources are specified in ISO 3741 and ISO 3745.

Subjects

Acoustics (14.020) General (17.140.01)


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Standard Swedish standard · SS-EN ISO 3743-1:2009

Acoustics - Determination of sound power levels of noise sources - Engineering methods for small, movable sources in reverberant fields - Part 1: Comparison method for hard-walled test rooms (ISO 3743-1:1994)
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Price: 1 013 SEK
standard ikon pdf

PDF

Price: 1 013 SEK
standard ikon

Paper

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Product information

Language: English

Written by: Svenska institutet för standarder

International title:

Article no: STD-70303

Edition: 2

Approved: 8/3/2009

No of pages: 28

Replaces: SS-EN ISO 3743-1

Replaced by: SS-EN ISO 3743-1:2010