CEN - EN ISO 389-4
Acoustics - Reference Zero for the Calibration of Audiometric Equipment - Part 4: Reference Levels for Narrow-Band Masking Noise
active, Most Current
| Organization: | CEN |
| Publication Date: | 1 December 1998 |
| Status: | active |
| Page Count: | 16 |
| ICS Code (Noise with respect to human beings): | 13.140 |
Document History
EN ISO 389-4
December 1, 1998
Acoustics - Reference Zero for the Calibration of Audiometric Equipment - Part 4: Reference Levels for Narrow-Band Masking Noise
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