NBN EN 60318-3:1999被替代

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.

NBN EN 60318-3:2015

SS EN 60318-3 Ed. 1 (1999) - Identical

UNE EN 60318-3:2000 - Identical

I.S. EN 60318-3:1999 - Identical

DIN EN 60318-3 (1999-09) - Identical

BS EN 60318-3:1998 - Identical

SN EN 60318-3:1998 - Identical

NF EN 60318-3:1999 - Identical

BS EN 60318-3:2015 - Identical

SS EN 60318-3 Ed. 2 (2015) - Identical

NF EN 60318-3:2015 - Identical