
Road Traffic Noise Reducing Devices - Test Method For Determining The Acoustic Performance - Part 4: Intrinsic Characteristics - In Situ Values Of Sound Diffraction
出版:Nederlands Normalisatie Instituut

专家解读视频
基本信息
标准编号: NEN EN 1793-4:2015
发布时间:2015/4/1 0:00:00
标准类别:Standard
出版单位:Nederlands Normalisatie Instituut
标准页数:34
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.
标准备注
Supersedes NEN NPR CEN/TS 1793-4. (04/2015)
等同采用的国际标准
EN 1793-4:2015 - Identical