
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:Comite Europeen de Normalisation

專家解讀視頻
DRAFT 2014 [01/03/2014]
NEN EN 1793-5:2014 - Identical
DIN EN 1793-5 (2014-05) - Identical
NF EN 1793-5:2014 - Identical
14/30296484 DC - Identical