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Type de carte de crédit

DIN EN ISO 389-9:2009-12

DIN EN ISO 389-9:2009-12

Acoustics - Reference zero for the calibration of audiometric equipment - Part 9: Preferred test conditions for the determination of reference hearing threshold levels (ISO 389-9:2009); German version EN ISO 389-9:2009



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.

Additional Info

Author DIN
Published by DIN
Document type Standard
Format File
ICS 13.140 : Noise with respect to human beings
Number of pages 18
Replace DIN ISO 389-9 (2006-07)
Cross references EN ISO 389-9 (2009-05), IDT
Year 2009
Document history DIN EN ISO 389-9 (2009-12)
Country Germany
Keyword DIN EN ISO 389;EN ISO 389;EN ISO 389-9;389

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