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BS EN ISO 3745:2009 2010

BS EN ISO 3745:2009 2010

$198.66

Acoustics. Determination of sound power levels of noise sources using sound pressure. Precision methods for anechoic and semi-anechoic rooms

Published By Publication Date Number of Pages
BSI 2010 56
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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.

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BS EN ISO 3745:2009 2010
$198.66