SNV - SN EN ISO 389-4
Acoustics - Reference zero for the calibration of audiometric equipment - Part 4: Reference levels for narrow-band masking noise (ISO 389-4:1994)
active, Most Current
| Organization: | SNV |
| Publication Date: | 1 January 1999 |
| Status: | active |
| Page Count: | 10 |
| ICS Code (Noise with respect to human beings): | 13.140 |
Document History
SN EN ISO 389-4
January 1, 1999
Acoustics - Reference zero for the calibration of audiometric equipment - Part 4: Reference levels for narrow-band masking noise (ISO 389-4:1994)
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