ANSI S12.31 : 0被替代
PRECISION METHODS FOR THE DETERMINATION OF SOUND POWER LEVELS OF BROAD-BAND NOISE SOURCES IN REVERBERATION ROOMS
出版：Acoustical Society of America
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基本信息
标准编号： ANSI S12.31 : 0
标准类别：Standard
出版单位：Acoustical Society of America
标准页数：0
标准简介
Specifies a Direct and Comparison Method for determining the sound power level produced by a source. Defines test room requirements, source location and operating conditions, instrumentation, and techniques for obtaining an estimate of average sound pressure level from which the sound power level of the source in octave or one-third octave bands is calculated.
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