Road traffic noise reducing devices. Test method for determining the acoustic performance. Intrinsic characteristics of sound absorption under diffuse sound field conditions.
NORMA vydaná dňa 30.4.2017
Designation standards: BS EN 1793-1:2017
Note: NEPLATNÁ
Publication date standards: 30.4.2017
The number of pages: 30
Approximate weight : 90 g (0.20 lbs)
Country: British technical standard
Kategória: Technické normy BS