DIN EN ISO 389-9 : 2009
DIN EN ISO 389-9 : 20091470899
DIN EN ISO 389-9 : 2009
Title: 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)
Year: 2009
Publisher: DIN Media GmbH
Availability: Within 1-2 working days
Title: 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)
Year: 2009
Publisher: DIN Media GmbH
Availability: Within 1-2 working days
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