AS/NZS ISO 389.1:2019现行
Acoustics - Reference zero for the calibration of audiometric equipment Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones
出版：Standards Australia
专家解读视频
基本信息
标准编号： AS/NZS ISO 389.1:2019
标准类别：Standard
出版单位：Standards Australia
标准页数：0
标准简介
The objective of this Standard is to specify 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.
