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immediate downloadReleased: 2015-02-28
BS EN 60318-3:2015
Electroacoustics. Simulators of human head and ear Acoustic coupler for the calibration of supra-aural earphones used in audiometry
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| Standard number: | BS EN 60318-3:2015 |
| Pages: | 16 |
| Released: | 2015-02-28 |
| ISBN: | 978 0 580 79115 4 |
| Status: | Standard |
DESCRIPTION
BS EN 60318-3:2015
This standard BS EN 60318-3:2015 Electroacoustics. Simulators of human head and ear is classified in these ICS categories:
- 17.140.50 Electroacoustics
- 13.140 Noise with respect to human beings
This part of IEC 60318 specifies an acoustic coupler for the measurement of supra-aural audiometric earphones in the frequency range from 125 Hz to 8 000 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 acoustic coupler can be used as an objective and reproducible means of measuring the output of supra-aural earphones. It can be used for specifying reference equivalent threshold sound pressure levels (RETSPL) for the calibration of audiometers.