
Acoustics. Measurement of insertion loss of ducted silencers without flow. Laboratory survey method.
NORMA vydaná dňa 15.3.1997
Designation standards: BS EN ISO 11691:1997
Note: NEPLATNÁ
Publication date standards: 15.3.1997
The number of pages: 16
Approximate weight : 48 g (0.11 lbs)
Country: British technical standard
Kategória: Technické normy BS