EN ISO 389-1 : 0現行
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
專家解讀視頻
基本信息
標準編號： EN ISO 389-1 : 0
標準類別：Standard
出版單位：Comite Europeen de Normalisation
標準頁數：0
標準簡介
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.
