International Standard
ISO 13472-1:2022
Acoustics — Measurement of sound absorption properties of road surfaces in situ — Part 1: Extended surface method
Reference number
ISO 13472-1:2022
Edition 2
International Standard
Read sample
ISO 13472-1:2022
Published (Edition 2, 2022)

ISO 13472-1:2022

ISO 13472-1:2022
CHF 151
Convert Swiss francs (CHF) to your currency


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.

General information

  •  : Published
     : 2022-01
    : International Standard published [60.60]
  •  : 2
     : 29
  • ISO/TC 43/SC 1
  • RSS updates

Got a question?

Check out our Help and Support

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)