IEC 60318-3:1998
Electroacoustics - Simulators of human head and ear - Part 3: Acoustic coupler for the calibration of supra-aural earphones used in audiometry

Standard No.

IEC 60318-3:1998

Release Date

1998

Published By

International Electrotechnical Commission (IEC)

Status

Be replaced 2014-12

Replace By

IEC 60318-3:2014

Latest

IEC 60318-3:2014

Scope

This International Standard describes an acoustic coupler for loading supra-aural audiometric earphones as specified in ISO 389-1 with a specified acoustic impedance, when calibrating audiometers, in the frequency range of 125 Hz to 8000 Hz. The sound pressure developed by an earphone is not, in general, the same in the coupler as in a person's ear. However, the IEC recommends its use as a simple and ready means for the exchange of specifications on audiometers and for the calibration of specified earphones used in audiometry. note: 1) To be published.

IEC 60318-3:1998 history

• 2014 IEC 60318-3:2014 Electroacoustics - Simulators of human head and ear - Part 3: Acoustic coupler for the calibration of supra-aural earphones used in audiometry
• 1998 IEC 60318-3:1998 Electroacoustics - Simulators of human head and ear - Part 3: Acoustic coupler for the calibration of supra-aural earphones used in audiometry