BS EN ISO 3741:2009被替代
Acoustics. Determination of sound power levels of noise sources using sound pressure. Precision methods for reverberation rooms
出版：British Standards Institution
专家解读视频
Gives a direct method and a comparison method for determining the sound power level that would be produced by a source operating in an environment at standard meteorological conditions corresponding to a characteristic impedance of [rho]c = 400 N.s/m[3]. Provides test room requirements, source location and general rules for operating conditions, instrumentation and techniques for obtaining an estimate of mean-square sound pressure levels from which the sound power levels of the source in octave or one-third-octave bands are calculated with a grade 1 accuracy.
© British Standards Institution 2013
Amendment notes:
Corrigendum, October 2010
