DIN EN ISO 389-9
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)
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| Organization: | DIN |
| Publication Date: | 1 December 2009 |
| Status: | active |
| Page Count: | 17 |
| ICS Code (Noise with respect to human beings): | 13.140 |
Document History
DIN EN ISO 389-9
December 1, 2009
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)
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