Acoustics - Hearing protectors - Part 2: Estimation of effective A-weighted sound pressure levels when hearing protectors are worn (ISO 4869-2:1994)
NORMA vydána dne 23.5.1996
Designation standards: UNE-EN ISO 4869-2:1996
Note: NEPLATNÁ
Publication date standards: 23.5.1996
The number of pages: 21
Approximate weight : 63 g (0.14 lbs)
Country: Spanish technical standard
Kategorie: Technické normy UNE