AENOR - UNE-EN ISO 4869-4
ACOUSTICS. HEARING PROTECTORS. PART 4: MEASUREMENT OF EFFECTIVE SOUND PRESSURE LEVELS FOR LEVEL-DEPENDENT SOUND-RESTORATION EAR-MUFFS. (ISO/TR 4869-4:1998)
inactive, Most Current
| Organization: | AENOR |
| Publication Date: | 21 November 2000 |
| Status: | inactive |
| Page Count: | 15 |
| ICS Code (Noise with respect to human beings): | 13.140 |
| ICS Code (Head protective equipment): | 13.340.20 |
Document History
UNE-EN ISO 4869-4
November 21, 2000
ACOUSTICS. HEARING PROTECTORS. PART 4: MEASUREMENT OF EFFECTIVE SOUND PRESSURE LEVELS FOR LEVEL-DEPENDENT SOUND-RESTORATION EAR-MUFFS. (ISO/TR 4869-4:1998)
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