Tracked Changes. Road traffic noise reducing devices. Test method for determining the acoustic performance. Intrinsic characteristics of sound absorption under diffuse sound field conditions.
NORMA vydána dne 25.2.2020
Designation standards: BS EN 1793-1:2017-TC
Note: NEPLATNÁ
Publication date standards: 25.2.2020
The number of pages: 59
Approximate weight : 177 g (0.39 lbs)
Country: British technical standard
Kategorie: Technické normy BS