
Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 5: Intrinsic characteristics - In situ values of sound reflection under direct sound field conditions
出版:Osterreichisches Normungsinstitut/Austrian Standards

專家解讀視頻
This European Standard describes a test method for measuring a quantity representative of the intrinsic characteristics of sound reflection from road noise reducing devices: the reflection index.
EN 1793-5:2016/AC:2018 - Identical
EN 1793-5 : 2016 - Identical
EN 1793-5 : 2016 - Identical