UNE EN 16272-6:2015现行
Railway Applications - Track - Noise Barriers And Related Devices Acting On Airborne Sound Propagation - Test Method For Determining The Acoustic Performance - Part 6: Intrinsic Characteristics - In Situ Values Of Airborne Sound Insulation Under Direct Sound Field Conditions
出版：Asociacion Espanola de Normalizacion
专家解读视频
