BS-ISO-13472-1-2002.pdf
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1、BRITISH STANDARD BS ISO 13472-1:2002 Acoustics Measurement of sound absorption properties of road surfaces in situ Part 1: Extended surface method ICS 17.140.30; 93.080.20 ? Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 04:27:32 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 13472-1:2002
2、 This British Standard, having been prepared under the direction of the Health and Environment Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 19 July 2002 BSI 19 July 2002 ISBN 0 580 39089 6 National foreword This British Sta
3、ndard reproduces verbatim ISO 13472-1:2002 and implements it as the UK national standard. The UK participation in its preparation was entrusted by Technical Committee EH/1, Acoustics, to Subcommittee EH/1/2, Transport noise, which has the responsibility to: A list of organizations represented on thi
4、s subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Sea
5、rch” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal
6、 obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Sum
7、mary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii to vi, pages 1 to 26, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd
8、. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 04:27:32 GMT+00:00 2006, Uncontrolled Copy, (c) BSI INTERNATIONAL STANDARD ISO 13472-1 First edition 2002-06-15 Reference number ISO 13472-1:2002(E) Acoustics Measurement of sound absorption properties of road surfaces in situ
9、 Part 1: Extended surface method Acoustique Mesurage in situ des proprits dabsorption acoustique des revtements de chausses Partie 1: Mthode de la surface tendue Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 04:27:32 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 13472-1:2002(E) ii ISO 2002
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15、2-1:2002(E) Contents Page 1Scope . 1 2Normative references . 1 3Terms and definitions 1 4Summary of the method . 3 4.1General principle . 3 4.2Signal separation techniques 4 4.3Test method . 6 5Test system . 7 5.1Components of the test system . 7 5.2Sound source 7 5.3Test signal 7 6Data processing 7
16、 6.1Calibration . 7 6.2Sampling frequency . 7 6.3Recovery of the overall impulse response . 7 6.4Temporal separation of the signals 8 7Positioning of the equipment 8 7.1Maximum sampled area 8 7.2Positioning of the measuring equipment 8 7.3Reflecting objects 9 7.4Background noise 9 7.5Safety consider
17、ations 9 8Road surface and meteorological conditions 9 8.1Condition of the road surface 9 8.2Wind 9 8.3Temperature 9 9Measurement procedure 10 10Measurement uncertainty . 10 11Test report 11 Annexes ARadius of the maximum sampled area . 12 BReference measurement and correction procedure 13 CPhysical
18、 principle of the measurement . 14 DMeasurement using an MLS test signal 16 EExample of a test report 18 FSound absorption coefficient at non-normal incidence . 21 iii Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 04:27:32 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 13472-1:2002(E) GCorr
19、ection of small time shifts in the direct impulse response between the free-field measurement and the reflected measurement . 23 Bibliography. 26 iv Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 04:27:32 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 13472-1:2002(E) Foreword ISO (the Intern
20、ational Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has b
21、een established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical sta
22、ndardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at l
23、east 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this part of ISO 13472 may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. International Standard ISO 13472-1 was prepar
24、ed by Technical Committee ISO/TC 43, Acoustics, Subcommittee SC 1, Noise. ISO 13472 consists of the following parts, under the general title Acoustics Measurement of sound absorption properties of road surfaces in situ: Part 1: Extended surface method Other parts are in preparation. Annexes A and B
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