DIN 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); German version EN ISO 389-4:1998
active, Most Current
| Organization: | DIN |
| Publication Date: | 1 July 1999 |
| Status: | active |
| Page Count: | 12 |
| ICS Code (Noise with respect to human beings): | 13.140 |
Document History
DIN EN ISO 389-4
July 1, 1999
Acoustics - Reference zero for the calibration of audiometric equipment - Part 4: Reference levels for narrow-band masking noise (ISO 389-4:1994); German version EN ISO 389-4:1998
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