Acoustics. Hearing protectors. Part 3: Simplified method for the measurement of insertion loss of ear muff type protectors for quality inspection purposes (ISO/TR 4869-3:1989)
NORM herausgegeben am 1.6.1996
Designation standards: ČSN EN 24869-3
Classification mark: 011640
Catalog number: 19642
Note: UNGÜLTIG
Publication date standards: 1.6.1996
The number of pages: 16
Approximate weight : 48 g (0.11 lbs)
Country: Czech technical standard
Kategorie: Technische Normen ČSN