DIN EN 16272-3-2-2014 轨道交通. 轨道. 作用于空气传声的隔音屏障及相关设备. 测定声学性能的试验方法. 第3-2部分: 标准化的铁路噪声频谱和直接的现场应用索引单号评级; 德文版本EN 16272-3-2-2014
Railway applications - Track - Noise barriers and related devices acting on airborne sound propagation - Test method for determining the acoustic performance - Part 3-2: Normalized railway noise spectrum and single number ratings for direct field applicat