标准号:NFEN16272-3-2-2014
英文标准名称:Railwayapplications-Track-Noisebarriersandrelateddevicesactingonairbornesoundpropagation-Testmethodfordeterminingtheacousticperformance-Part3-2:normalizedrailwaynoisespectrumandsinglenumberratingsfordirectfieldapplic
国际标准分类号:17.140.30
93.100