I.S. EN 60318-3:1999被替代
Electroacoustics - Simulators Of Human Head And Ear - Part 3: Acoustic Coupler For The Calibration Of Supra-aural Earphones Used In Audiometry
出版：National Standards Authority of Ireland
专家解读视频
Specifies an acoustic coupler for loading supra-aural audiometric earphones as specified in ISO 389 with a specified acoustic impedance, when calibrating audiometers, in the frequency range of 125 Hz to 8000 Hz.
BS EN 60318-3:2015 - Identical
SN EN 60318-3:1998 - Identical
BS EN 60318-3:1998 - Identical
DIN EN 60318-3 (1999-09) - Identical
NBN EN 60318-3:1999 - Identical
NF EN 60318-3:1999 - Identical
IEC 60318-3 Ed. 1.0 - Identical
UNE EN 60318-3:2000 - Identical
SS EN 60318-3 Ed. 1 (1999) - Identical
