
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:National Standards Authority of Ireland

專家解讀視頻
Gives 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 - Identical
EN 1793-5 : 2016 - Identical
EN 1793-5:2016 - Identical