PREN 16272-4:2014被替代
Railway Applications - Track - Noise Barriers And Related Devices Acting On Airborne Sound Propagation - Test Method For Determining The Acoustic Performance - Part 4: Intrinsic Characteristics - In Situ Values Of Sound Diffraction Under Direct Sound Field Conditions
出版：Comite Europeen de Normalisation
专家解读视频
DRAFT 2014 [01/05/2014]
NF EN 16272-4:2014 - Identical
DIN EN 16272-4 (2014-07) - Identical
NEN EN 16272-4:2014 - Identical
14/30297521 DC - Identical
NEN EN 16272-4:2016 - Identical
