ISO/DIS 389-1 : 60.00 (2017)被替代
ACOUSTICS - REFERENCE ZERO FOR THE CALIBRATION OF AUDIOMETRIC EQUIPMENT - PART 1: REFERENCE EQUIVALENT THRESHOLD SOUND PRESSURE LEVELS FOR PURE TONES AND SUPRA-AURAL EARPHONES
出版：International Organization for Standardization
专家解读视频
基本信息
标准编号： ISO/DIS 389-1 : 60.00 (2017)
标准类别：Standard
出版单位：International Organization for Standardization
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, in order to promote agreement and uniformity in the expression of hearing threshold level measurements throughout the world.
替代本标准的新标准
