ISO 13472-1:2022
International Standard
Current Edition
Approved on
05 January 2022
Acoustics — Measurement of sound absorption properties of road surfaces in situ — Part 1: Extended surface method
ISO 13472-1:2022 Files
null Pages
Current Edition
ISO 13472-1:2022 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.
Best Sellers
GSO 150-2:2013
Gulf Standard
Expiration dates for food products - Part 2 :
Voluntary expiration dates

OS GSO 150-2:2013
GSO 150-2:2013
Omani Standard
Expiration dates for food products - Part 2 :
Voluntary expiration dates


OS GSO 150-1:2013
GSO 150-1:2013
Omani Standard
Expiration dates for food products -Part 1 : Mandatory expiration dates


GSO 150-1:2013
Gulf Technical Regulation
Expiration dates for food products -Part 1 : Mandatory expiration dates

Recently Published
ISO 15500-13:2023
International Standard
Road vehicles — Compressed natural gas (CNG) fuel system components — Part 13: Pressure relief device (PRD)

ISO/TS 11007-2:2023
International Standard
Petroleum products and lubricants — Determination of rust-prevention characteristics of lubricating greases — Part 2: Method with water wash-out

ISO 13583-2:2023
International Standard
Centrifugally cast steel and alloy products — Part 2: Heat-resistant materials

ISO 7784-1:2023
International Standard
Paints and varnishes — Determination of resistance to abrasion — Part 1: Method with abrasive-paper covered wheels and rotating test specimen
