本欧洲标准规定了在标准曝光条件下根据基本机械性能对道路交通降噪装置进行分类的标准，不考虑使用的材料。提供了一系列条件和可选要求，以便考虑到欧洲的广泛实践。绩效的个人方面在附件中单独列出。在降噪设备损坏的情况下的安全考虑在本欧洲标准的第2部分中介绍

This European Standard specifies criteria to categorise road traffic noise reducing devices according to basic mechanical performance under standard conditions of exposure, irrespective of the materials used. A range of conditions and optional requirements is provided in order to take into account the wide diversity of practice in Europe. Individual aspects of performance are covered separately in the annexes. Safety considerations in the event of damage to noise reducing devices are covered in Part 2 of this European Standard.