Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 1: Intrinsic characteristics of sound absorption under diffuse sound field conditions
NORM herausgegeben am 15.11.2017
Designation standards: UNE-EN 1793-1:2017
Publication date standards: 15.11.2017
The number of pages: 29
Approximate weight : 87 g (0.19 lbs)
Country: Spanish technical standard
Kategorie: Technische Normen UNE