CEN - EN ISO 4869-4
Acoustics - Hearing Protectors - Part 4: Measurement of Effective Sound Pressure Levels for Level-Dependent Sound-Restoration Ear-Muffs
active, Most Current
| Organization: | CEN |
| Publication Date: | 1 May 2000 |
| Status: | active |
| Page Count: | 17 |
| ICS Code (Head protective equipment): | 13.340.20 |
Document History
EN ISO 4869-4
May 1, 2000
Acoustics - Hearing Protectors - Part 4: Measurement of Effective Sound Pressure Levels for Level-Dependent Sound-Restoration Ear-Muffs
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