DIN EN 1793-2:2013 道路交通减噪设备. 测定声学性能的试验方法. 第2部分: 扩散声场条件下气载声音隔音的本质特征; 德文版本EN 1793-2-2012
Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 2: Intrinsic characteristics of airborne sound insulation under diffuse sound field conditions; German version EN 1793-2:2012