
Acoustics - Hearing protectors - Subjective method for the measurement of sound attenuation (ISO 4869-1:1990)
NORM herausgegeben am 15.2.1994
Designation standards: UNE-EN 24869-1:1994
Note: UNGÜLTIG
Publication date standards: 15.2.1994
The number of pages: 14
Approximate weight : 42 g (0.09 lbs)
Country: Spanish technical standard
Kategorie: Technische Normen UNE