NS EN 1793-4:2015现行
Road Traffic Noise Reducing Devices - Test Method For Determining The Acoustic Performance - Part 4: Intrinsic Characteristics - In Situ Values Of Sound Diffraction
出版：Norwegian Standards (Norges Standardiseringsforbund)
专家解读视频
基本信息
标准编号： NS EN 1793-4:2015
发布时间：2015/6/1 0:00:00
标准类别：Standard
出版单位：Norwegian Standards (Norges Standardiseringsforbund)
标准页数：40
标准简介
Explains a test method for determining the intrinsic characteristics of sound diffraction of added devices installed on the top of traffic noise reducing devices.
等同采用的国际标准
EN 1793-4:2015 - Identical
