ISO 13472-1-2002 声学.施工现场路面对噪声吸收性能的测量.第1部分:扩大表面法

标准号：ISO 13472-1-2002
中文标准名称：声学.施工现场路面对噪声吸收性能的测量.第1部分:扩大表面法
英文标准名称：Acoustics - Measurement of sound absorption properties of road surfaces in situ - Part 1: Extended surface method
标准类型：Z32
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：Z32
国际标准分类号：17.140.30;93.080.20
适用范围：This part of ISO 13472 describes a test method for measuring in situ the sound absorption coefficient of road surfaces as a function of frequency in the range from 250 Hz to 4 kHz. Normal incidence is assumed. However, the test method can be applied at oblique incidence although with some limitations (see annex F). The test method is intended for the following applications: — determination of the sound absorption properties of test tracks according to ISO 10844, with limitations, and other similar standards; — determination of the sound absorption properties of road surfaces in actual use; — comparison of sound absorption design specifications of road surfaces with actual performance data of the surface after completion of the construction work. The complex reflection factor can also be determined by this method.