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  • BSI
    BS EN ISO 3745:2009 Acoustics. Determination of sound power levels of noise sources using sound pressure. Precision methods for anechoic and semi-anechoic rooms
    Edition: 2010
    $497.46
    / user per year

Description of BS EN ISO 3745:2009 2010

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.



Standard NumberBS EN ISO 3745:2009
TitleAcoustics. Determination of sound power levels of noise sources using sound pressure. Precision methods for anechoic and semi-anechoic rooms
StatusWithdrawn
Publication Date2010-08-31
Withdrawn Date2012-04-30
ReplacesBS EN ISO 3745:2003
Replaced ByBS EN ISO 3745:2012+A1:2017
Identical National Standard OfEN ISO 3745:2009
DescriptorsFree-field rooms, Production equipment, Test equipment, Audio equipment, Precision, Sound intensity, Audiofrequencies, Acoustic testing, Installation, Acoustic measurement, Noise (environmental), Noise control (acoustic), Mathematical calculations, Microphones, Acoustics, Acoustic testing rooms, Sound sources
ICS17.140.01 Acoustic measurements and noise abatement in general
CommitteeEH/1/4
ISBN978 0 580 67414 3
PublisherBSI
Pages56

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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