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EVS-EN ISO 389-9:2009

Acoustics - Reference zero for the calibration of audiometric equipment - Part 9: Preferred test conditions for the determination of reference hearing threshold levels

General information

Valid from 03.12.2009
Base Documents
ISO 389-9:2009; EN ISO 389-9:2009
Directives or regulations
None

Standard history

Status
Date
Type
Name
03.12.2009
Main
This part of ISO 389 specifies test conditions for determining the hearing thresholds of subjects for the purpose of establishing standardized values for reference hearing threshold levels.

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