Acoustics — Hearing protectors — Part 3: Measurement of insertion loss of ear-muff type protectors using an acoustic test fixture
NORMA vydána dne 26.6.2007
Designation standards: ISO 4869-3:2007
Publication date standards: 26.6.2007
The number of pages: 11
Approximate weight : 33 g (0.07 lbs)
Country: International technical standard
Kategorie: Technické normy ISO