ISO 13472-1:2022 声学 现场道路表面声音吸收测定 第1部分：扩大表面方法

标准编号：ISO 13472-1:2022

中文名称：声学 现场道路表面声音吸收测定 第1部分：扩大表面方法

英文名称：Acoustics — Measurement of sound absorption properties of road surfaces in situ — Part 1: Extended surface method

发布日期：2022-01

标准范围

本文件描述了一种现场测量路面吸声系数的试验方法，该系数在250？Hz至4？kHz范围内随频率变化。假设为正常发病率。然而，该试验方法可在斜入射条件下使用，尽管有一些限制（见附录F）。本试验方法适用于以下应用:-？确定实际使用中路面的吸声性能；-？施工工程完工后，将路面吸声设计规范与路面实际性能数据进行比较。用这种方法也可以确定复反射系数。

This document 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 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.

标准预览图