Draft Document - Railway applications - Infrastructure - Noise barriers and related devices acting on airborne sound propagation - Test method for determining the acoustic performance - Part 3-1: Intrinsic characteristics - Normalized railway noise spectrum and single number ratings for diffuse sound field applications; German and English version prEN 16272-3-1:2022
文件草案.铁路应用.基础设施.作用于空气声传播的噪声屏障和相关装置.声学性能测定的试验方法.第3-1部分:固有特性.标准化铁路噪声频谱和漫反射声的单次额定值