Historical
BS EN ISO 3744:2009
Acoustics. Determination of sound power levels of noise sources using sound pressure. Engineering method in an essentially free field over a reflecting plane (British Standard)
Specifies a method of measurement. 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 of the source is calculated, leading to results which have a grade 2 accuracy.
CONTENT PROVIDER
British Standards Institution [bsi]
British Standards Institution [bsi]