BS 4196-5(1981) : 1981被替代
SOUND POWER LEVELS OF NOISE SOURCES - PART 5: PRECISION METHODS FOR DETERMINATION OF SOUND POWER LEVELS FOR SOURCES IN ANECHOIC AND SEMI-ANECHOIC ROOMS
出版：British Standards Institution
专家解读视频
Describes two laboratory methods for determining the sound power level of a source. It gives requirements for the test room, as well as the source location, operating conditions and instrumentation. Techniques are specified for obtaining an estimate of the surface sound pressure level from which the weighted sound power level of the source as well as the sound power level in octave or one-third octave bands may be calculated. Intended to prescribe techniques for acoustical measurements that may be used in test codes for particular types of equipment.
ISO 3745 : 2012(R2017) - Identical
