This part of ISO 389 specifies reference hearing threshold levels for tests signals of short duration applicable to the calibration of audiometric equipment where such signals are used. NOTE 1 – Some notes on different parameters and their effects on threshold levels are given in Annex A. NOTE 2 – Preferred test conditions for determining hearing thresholds for standardization are specified in ISO 389-9.
Number of pages: 24
Date of approval: 2007-07-27
EN ISO 389-6:2007 IDTISO 389-6:2007 IDT