标准号:NF F90-272-3-2-2014
英文标准名称: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 applica
标准状态:A
标准类型:国际标准
发布日期:2014-08-30
国际标准分类号:17.140.30%93.100