ISO 13472-2:2025
ISO 13472-2:2025 Acoustics — Measurement of sound absorption properties of road surfaces in situ — Part 2: Spot method for reflective surfaces
CDN $251.00
This publication was last reviewed and confirmed in 2025.
Acoustics — Measurement of sound absorption properties of road surfaces in situ — Part 2: Spot method for reflective surfaces
Description
This document specifies a test method for measuring in situ the sound absorption coefficient of road surfaces for the one-third octave band frequencies ranging from 250 Hz to 1 600 Hz under normal incidence conditions. If necessary for practical applications the diameter of the tube can be reduced to 80 mm. This will increase the upper boundary of the frequency range to 2 000 Hz one-third octave band (see REF Section_sec_5.4 r h 5.4
08D0C9EA79F9BACE118C8200AA004BA90B020000000800000010000000530065006300740069006F006E005F007300650063005F0035002E0034000000
) but reduces the area under test.
The test method is intended for the following applications:
— determination of the sound absorption coefficient (and, if of interest, also the complex acoustical impedance) of semi-dense to dense road surfaces;
— determination of the sound absorption properties of test tracks according to ISO 10844[
REF Reference_ref_4 r h 2
08D0C9EA79F9BACE118C8200AA004BA90B0200000008000000100000005200650066006500720065006E00630065005F007200650066005F0034000000
] or other similar standards and test surfaces defined in national and international type approval regulations for road vehicles and their tyres;
— verification of the compliance of the sound absorption coefficient of a road surface with design-specifications or other requirements.
Edition
2
Published Date
2026-06-19
Status
PUBLISHED
Pages
25
Language
English
Format
Secure PDF
Secure – PDF details
- Save your file locally or view it via a web viewer
- Viewing permissions are restricted exclusively to the purchaser
- Device limits - 3
- Printing – Enabled only to print (1) copy
See more about our Environmental Commitment
Abstract
This document specifies a test method for measuring in situ the sound absorption coefficient of road surfaces for the one-third octave band frequencies ranging from 250 Hz to 1 600 Hz under normal incidence conditions. If necessary for practical applications the diameter of the tube can be reduced to 80 mm. This will increase the upper boundary of the frequency range to 2 000 Hz one-third octave band (see REF Section_sec_5.4 r h 5.4 08D0C9EA79F9BACE118C8200AA004BA90B020000000800000010000000530065006300740069006F006E005F007300650063005F0035002E0034000000 ) but reduces the area under test.
The test method is intended for the following applications:
— determination of the sound absorption coefficient (and, if of interest, also the complex acoustical impedance) of semi-dense to dense road surfaces;
— determination of the sound absorption properties of test tracks according to ISO 10844[ REF Reference_ref_4 r h 2 08D0C9EA79F9BACE118C8200AA004BA90B0200000008000000100000005200650066006500720065006E00630065005F007200650066005F0034000000 ] or other similar standards and test surfaces defined in national and international type approval regulations for road vehicles and their tyres;
— verification of the compliance of the sound absorption coefficient of a road surface with design-specifications or other requirements.
Previous Editions
Can’t find what you are looking for?
Please contact us at:
Related Documents
-
ISO 80000:2019 Quantities and units – Part 11: Characteristic numbers
CDN $336.00 Add to cart -
ISO 2574:1994 Aircraft – Electrical cables – Identification marking
CDN $124.00 Add to cart -
ISO 20537:2025 Footwear – Identification of defects during visual inspection – Vocabulary
CDN $295.00 Add to cart -
ISO 14416:2003 Information and documentation – Requirements for binding of books, periodicals, serials and other paper documents for archive and library use – Methods and materials
CDN $295.00 Add to cart
