IEC 60318-3 Ed. 1.0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：International Electrotechnical Committee
專家解讀視頻
Describes 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 8 000 Hz. Cancels and replaces IEC 60303 (1970).
I.S. EN 60318-3:1999 - Identical
NF EN 60318-3:1999 - Identical
OVE/ONORM EN 60318-3:1999 - Identical
NEN EN IEC 60318-3:1998 - Identical
SS EN 60318-3 Ed. 1 (1999) - Identical
PN EN 60318-3:2001 - Identical
DIN EN 60318-3 (1999-09) - Identical
BS EN 60318-3:1998 - Equivalent
SN EN 60318-3:1998 - Identical
CEI EN 60318-3 Ed. 1 (1999) - Identical
UNE EN 60318-3:2000 - Identical
