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ISO 13472-1:2022

Acoustics — Measurement of sound absorption properties of road surfaces in situ — Part 1: Extended surface method ISO 13472-1:2022

Publication date:   Jan 5, 2022

General information

60.60 Standard published   Jan 5, 2022

ISO

ISO/TC 43/SC 1 Noise

International Standard

93.080.20   Road construction materials | 17.140.30   Noise emitted by means of transport

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Scope

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.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 13472-1:2002

NOW

PUBLISHED
ISO 13472-1:2022
60.60 Standard published
Jan 5, 2022