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 15.5.2017
Designation standards: ÖNORM EN 1793-1
Note: UNGÜLTIG
Publication date standards: 15.5.2017
The number of pages: 25
Approximate weight : 75 g (0.17 lbs)
Country: Austrian technische Norm
Kategorie: Technische Normen ÖNORM