
Acoustics. Hearing protectors. Estimation of effective A-weighted sound pressure levels when hearing protectors are worn.
NORM herausgegeben am 28.9.2007
Designation standards: BS EN ISO 4869-2:1995
Note: UNGÜLTIG
Publication date standards: 28.9.2007
The number of pages: 20
Approximate weight : 60 g (0.13 lbs)
Country: British technical standard
Kategorie: Technische Normen BS