DIN EN 16272-2:2013
轨道交通. 轨道. 对空气传声起作用的隔声板和相关设备. 测定声学性能的试验方法. 第2部分:内在特性. 扩散声场条件下实验室中的空气隔声; 德文版本EN 16272-2-2012
Railway applications - Track - Noise barriers and related devices acting on airborne sound propagation - Test method for determining the acoustic performance - Part 2: Intrinsic characteristics - Airborne sound insulation in the laboratory under diffuse s