NEN-EN-ISO 3747
Acoustics - Determination of sound power levels of noise sources using sound pressure - Comparison method for use in situ
| Organization: | NEN |
| Publication Date: | 1 August 2000 |
| Status: | inactive |
| Page Count: | 32 |
| ICS Code (Acoustic measurements and noise abatement in general): | 17.140.01 |
| ICS Code (Safety of machinery): | 13.110 |
scope:
Specifies a method for determining the sound power levels of non-movable sound sources in situ. A comparison method is used to determine the octave-band sound power levels of the sources. The measurement uncertainty will depend on the directional characteristics of the source under test and the test environment. The measurement uncertainty is evaluated afterwards by comparing with different field/source indicators. The accuracy will either be that of on engineering or that of a survey method.
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