ISO 389-8:2004

Acoustics — Reference zero for the calibration of audiometric equipment — Part 8: Reference equivalent threshold sound pressure levels for pure tones and circumaural earphones

Standard Details

ISO 389-8:2004 specifies reference equivalent threshold sound pressure levels (RETSPLs) for pure tones in the frequency range from 125 Hz to 8 kHz, applicable to the calibration of air conduction audiometers equipped with a particular model of circumaural earphones (SENNHEISER HDA 200).

Some notes and references on the derivation and the test conditions used to determine the recommended reference levels are given in Annex A and the Bibliography.

The sound attenuation of the earphone is given in Annex B. For speech audiometers of types A-E and B-E, the correction figures of the earphone for a free-field equivalent output are given in Annex C.

General Information

Status : Published

Standard Type: Main

Document No: ISO 389-8:2004

Document Year: 2004

Pages: 7

Edition: 1

Section Volume:
ISO/TC 43. Acoustics

ICS:
13.140 Noise with respect to human beings

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ISO 389-8:2004

ISO 389-8:2004

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