
Electro-acoustics - Simulators Of Human Head And Ear - Part 3: Acoustic Coupler For The Calibration Of Supra-aural Earphones Used In Audiometry
出版:Nederlands Normalisatie Instituut

专家解读视频
基本信息
标准编号: NEN EN IEC 60318-3:1998
发布时间:1998/11/1 0:00:00
标准类别:Standard
出版单位:Nederlands Normalisatie Instituut
标准页数:17
标准简介
Specifies an acoustic coupler for loading supra-aural audiometric earphones as specified in ISO 389-1 with specified acoustic impedance, when calibrating audiometers, in the frequency range of 125 Hz to 8000 Hz.
标准备注
Supersedes NEN 10303 (08/2002)
替代本标准的新标准
等同采用的国际标准
IEC 60318-3 Ed. 1.0 - Identical