UNE-EN ISO 389-9:2010

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)

STANDARD published on 13.1.2010

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The information about the standard:

Designation standards: UNE-EN ISO 389-9:2010
Publication date standards: 13.1.2010
The number of pages: 17
Approximate weight : 51 g (0.11 lbs)
Country: Spanish technical standard
Category: Technical standards UNE