UNI EN ISO 389-1:2018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
出版：Ente Nazionale Italiano di Unificazione (UNI)
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基本信息
标准编号： UNI EN ISO 389-1:2018
标准类别：Standard
出版单位：Ente Nazionale Italiano di Unificazione (UNI)
标准页数：0
标准简介
ISO 389-1:2017 specifies 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.
本标准替代的旧标准
