NEN-EN-ISO 4869-4
Acoustics - Hearing protectors - Part 4: Measurement of effective sound pressure levels for level-dependent sound-restoration ear-muffs
inactive, Most Current
| Organization: | NEN |
| Publication Date: | 1 July 2000 |
| Status: | inactive |
| Page Count: | 18 |
| ICS Code (Head protective equipment): | 13.340.20 |
scope:
The standard specifies methods for measuring sound attenuation of amplitude sensitive hearing protectors valid for relevant sound pressure levels at normal exposure to noises.
Document History
NEN-EN-ISO 4869-4
July 1, 2000
Acoustics - Hearing protectors - Part 4: Measurement of effective sound pressure levels for level-dependent sound-restoration ear-muffs
The standard specifies methods for measuring sound attenuation of amplitude sensitive hearing protectors valid for relevant sound pressure levels at normal exposure to noises.