DIN EN 16951-1 E:2016-01
铁路应用 轨道 作用于空气传播声音的隔音屏障和相关装置 评估长期性能的程序 第1部分:声学特性(草案)
Railway applications - Track - Noise barriers and related devices acting on airborne sound propagation - Procedures for assessing long term performance - Part 1: Acoustic characteristics