SN EN 60318-3:1998现行
Electroacoustics - Simulators Of Human Head And Ear - Part 3: Acoustic Coupler For The Calibration Of Supra-aural Earphones Used In Audiometry
出版：Swiss Standards
专家解读视频
Covers an acoustic coupler for loading supra-aural audiometric earphones as defined in ISO 389-1, having a specific acoustic impedance, when calibrating audiometers, in the frequency range 125 - 8000 Hz.
NF EN 60318-3:2015 - Identical
NBN EN 60318-3:2015 - Identical
SS EN 60318-3 Ed. 2 (2015) - Identical
BS EN 60318-3:2015 - Identical
NBN EN 60318-3:1999 - Identical
IEC 60318-3 Ed. 1.0 - Identical
I.S. EN 60318-3:1999 - Identical
NF EN 60318-3:1999 - Identical
UNE EN 60318-3:2000 - Identical
SS EN 60318-3 Ed. 1 (1999) - Identical
BS EN 60318-3:1998 - Identical
DIN EN 60318-3 (1999-09) - Identical
