Acoustics; estimated noise reduction of hearing protectors.
NORMA vydána dne 1.5.1989
Designation standards: E DIN ISO 8353:1989-05
Note: NEPLATNÁ
Publication date standards: 1.5.1989
The number of pages: 9
Approximate weight : 27 g (0.06 lbs)
Country: German technical standard
Kategorie: Technické normy DIN
Akustik; Schätzwert der Schutzwirkung von Gehörschützern.