Acoustics. Measurement of sound absorption properties of road surfaces in situ Spot method for reflective surfaces

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

30-11-2010

Publisher

British Standards Institution

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Test equipment
6 Measurement and analysis procedure
7 Positioning of the equipment
8 Measurement and analysis procedure
9 Measurement uncertainty
10 Test report
Annex A (normative) - Correction on base of reference
measurement
Annex B (informative) - Measurement uncertainty
Annex C (informative) - Sketch of in-situ test fixture
Annex D (informative) - Example of a test report
Bibliography

Defines 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 1600 Hz under normal incidence conditions.

This part of ISO13472 specifies a test method for measuring in situ the sound absorption coefficient of road surfaces for the one-third-octave-band frequencies ranging from 250Hz to 1600Hz under normal incidence conditions. For special purposes, the frequency range can be changed by modifying the dimensions of the system. The test method is intended for: determination of the sound absorption coefficient of semi-dense to dense road surfaces (and, if of interest, also the complex acoustical impedance); determination of the sound absorption properties of test tracks in accordance with standards such as ISO10844 and test surfaces defined in national and international type approval regulations for road vehicles and vehicle tyres; verification of the compliance of the sound absorption coefficient of a road surface with design specifications or other requirements.

Committee	EH/1/2
DevelopmentNote	Supersedes 07/30164074 DC. (11/2010)
DocumentType	Standard
Pages	32
PublisherName	British Standards Institution
Status	Current
Supersedes	07/30164074 DC : 0

Standards	Relationship
ISO 13472-2:2010	Identical

ASTM E 1050 : 2012 : REDLINE	Standard Test Method for Impedance and Absorption of Acoustical Materials Using a Tube, Two Microphones and a Digital Frequency Analysis System
ISO 13472-1:2002	Acoustics Measurement of sound absorption properties of road surfaces in situ Part 1: Extended surface method
ISO 354:2003	Acoustics — Measurement of sound absorption in a reverberation room
ISO 10844:2014	Acoustics Specification of test tracks for measuring noise emitted by road vehicles and their tyres
ISO 7188:1994	Acoustics Measurement of noise emitted by passenger cars under conditions representative of urban driving
ISO 10534-2:1998	Acoustics — Determination of sound absorption coefficient and impedance in impedance tubes — Part 2: Transfer-function method
IEC 61260:1995	Electroacoustics - Octave-band and fractional-octave-band filters
ISO 10534-1:1996	Acoustics Determination of sound absorption coefficient and impedance in impedance tubes Part 1: Method using standing wave ratio
ISO/IEC Guide 98-3:2008	Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)

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BS ISO 13472-2:2010

Current

Table of Contents

Abstract

Scope

General Product Information

International Equivalents

Standards Referencing This Book

Category

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