EN ISO 389-1 : 0现行
ACOUSTICS - REFERENCE ZERO FOR THE CALIBRATION OF AUDIOMETRIC EQUIPMENT - PART 1: REFERENCE EQUIVALENT THRESHOLD SOUND PRESSURE LEVELS FOR PURE TONES AND SUPRA-AURAL EARPHONES (ISO 389-1:2017)
出版：Comite Europeen de Normalisation
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基本信息
标准编号： EN ISO 389-1 : 0
标准类别：Standard
出版单位：Comite Europeen de Normalisation
标准页数：0
标准简介
Defines a standard reference zero for the scale of hearing threshold level applicable to pure-tone air conduction audiometers, to promote agreement and uniformity in the expression of hearing threshold level measurements throughout the world.
