EN ISO 11691-2009 en Acoustics - Measurement of insertion loss of ducted silencers without flow - Laboratory survey method《声学 无流量管道中消音器的插入损耗测量 实验室鉴定法》.pdf

1、BS EN ISO11691:2009ICS 17.140.20; 91.120.20; 91.140.30NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDAcoustics Measurement ofinsertion loss of ductedsilencers withoutflow Laboratorysurvey method (ISO11691:1995)This British Standardwas published under theauthori

2、ty of the StandardsPolicy and StrategyCommittee on 31 May2010. BSI 2010ISBN 978 0 580 67688 8Amendments/corrigenda issued since publicationDate CommentsBS EN ISO 11691:2009National forewordThis British Standard is the UK implementation of EN ISO 11691:2009.It is identical to ISO 11691:1995. It super

3、sedes BS EN ISO 11691:1997which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee EH/1/4, Machinery noise.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the neces

4、sary provisionsof a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 11691August 2009ICS 91.120.20 Supersedes EN ISO 11691:1995 English VersionAcoustics -

5、Measurement of insertion loss of ducted silencerswithout flow - Laboratory survey method (ISO 11691:1995)Acoustique - Dtermination de la perte dinsertion desilencieux en conduit sans coulement - Mthode demesurage en laboratoire (ISO 11691:1995)Akustik - Messung des Einfgungsdmpfungsmaes vonSchalldmp

6、fern in Kanlen ohne Strmung -Laborverfahren der Genauigkeitsklasse 3 (ISO11691:1995)This European Standard was approved by CEN on 3 August 2009.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a na

7、tional standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in

8、any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Est

9、onia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISC

10、HES KOMITEE FR NORMUNGManagement Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 11691:2009: EBS EN ISO 11691:2009EN ISO 11691:2009 (E) 3 Foreword The text of ISO 11691:1995 has been

11、 prepared by Technical Committee ISO/TC 43 “Acoustics” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 11691:2009 by Technical Committee CEN/TC 211 “Acoustics” the secretariat of which is held by DS. This European Standard shall be given the status of a

12、national standard, either by publication of an identical text or by endorsement, at the latest by January 2010, and conflicting national standards shall be withdrawn at the latest by January 2010. Attention is drawn to the possibility that some of the elements of this document may be the subject of

13、patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 11691:1995. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports ess

14、ential requirements of EC Directives. For relationship with EC Directives, see informative Annexes ZA and ZB, which are integral parts of this document. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this Euro

15、pean Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United

16、 Kingdom. Endorsement notice The text of ISO 11691:1995 has been approved by CEN as a EN ISO 11691:2009 without any modification. BS EN ISO 11691:2009EN ISO 11691:2009 (E) 4 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/EC Thi

17、s European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association to provide a means of conforming to Essential Requirements of the New Approach Directive 98/37/EC, amended by 98/79/EC on machinery. Once this standard is cited in th

18、e Official Journal of the European Communities under that Directive and has been implemented as a national standard in at least one Member State, compliance with the normative clauses of this standard confers, within the limits of the scope of this standard, a presumption of conformity with the rele

19、vant Essential Requirements of that Directive and associated EFTA regulations. WARNING - Other requirements and other EU Directives may be applicable to the product(s) falling within the scope of this standard. BS EN ISO 11691:2009EN ISO 11691:2009 (E) 5 Annex ZB (informative) Relationship between t

20、his European Standard and the Essential Requirements of EU Directive 2006/42/EC This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association to provide a means of conforming to Essential Requirements of the New Approach Dire

21、ctive 2006/42/EC on machinery. Once this standard is cited in the Official Journal of the European Communities under that Directive and has been implemented as a national standard in at least one Member State, compliance with the normative clauses of this standard confers, within the limits of the s

22、cope of this standard, a presumption of conformity with the relevant Essential Requirements of that Directive and associated EFTA regulations. WARNING Other requirements and other EU Directives may be applicable to the product(s) falling within the scope of this standard. BS EN ISO 11691:2009BS EN I

23、SO 11691:2009BS EN ISO 11691:2009BS EN ISO 11691:2009BS EN ISO 11691:2009BS EN ISO 11691:2009BS EN ISO 11691:2009BS EN ISO 11691:2009BS EN ISO 11691:2009BS EN ISO 11691:2009BS EN ISO 11691:2009BS EN ISO 11691:2009BS EN ISO 11691:2009This page has been intentionally left blank BS EN ISO11691:2009BSI

24、GroupHeadquarters 389Chiswick High Road,London, W4 4AL, UKTel +44 (0)20 8996 9001Fax +44 (0)20 8996 - British Standards InstitutionBSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on standards in Europe and at theinternational level. It is inc

25、orporated by Royal Charter.RevisionsBritish Standards are updated by amendment or revision. Users of BritishStandards should make sure that they possess the latest amendments oreditions.It is the constant aim of BSI to improve the quality of our products and services.We would be grateful if anyone f

26、inding an inaccuracy or ambiguity while usingthis British Standard would inform the Secretary of the technical committeeresponsible, the identity of which can be found on the inside front cover. Tel:+44 (0)20 8996 9000. Fax: +44 (0)20 8996 7400.BSI offers members an individual updating service calle

27、d PLUS which ensuresthat subscribers automatically receive the latest editions of standards.Buying standardsOrders for all BSI, international and foreign standards publications should beaddressed to Customer Services. Tel: +44 (0)20 8996 9001. Fax: +44 (0)20 89967001 Email: You may also buy directl

28、y using a debit/creditcard from the BSI Shop on the Website http:/ response to orders for international standards, it is BSI policy to supply theBSI implementation of those that have been published as British Standards,unless otherwise requested.Information on standardsBSI provides a wide range of i

29、nformation on national, European andinternational standards through its Library and its Technical Help to ExportersService. Various BSI electronic information services are also available whichgive details on all its products and services. Contact Information Centre. Tel:+44 (0)20 8996 7111 Fax: +44

30、(0)20 8996 7048 Email: Subscribing members of BSI are kept up to date with standards developmentsand receive substantial discounts on the purchase price of standards. For detailsof these and other benefits contact Membership Administration. Tel: +44 (0)208996 7002 Fax: +44 (0)20 8996 7001 Email: Inf

31、ormation regarding online access to British Standards via British StandardsOnline can be found at http:/ information about BSI is available on the BSI website at http:/.CopyrightCopyright subsists in all BSI publications. BSI also holds the copyright, in theUK, of the publications of the internation

32、al standardization bodies. Except aspermitted under the Copyright, Designs and Patents Act 1988 no extract maybe reproduced, stored in a retrieval system or transmitted in any form or by anymeans electronic, photocopying, recording or otherwise without prior writtenpermission from BSI.This does not

33、preclude the free use, in the course of implementing the standard,of necessary details such as symbols, and size, type or grade designations. Ifthese details are to be used for any other purpose than implementation then theprior written permission of BSI must be obtained.Details and advice can be obtained from the Copyright and Licensing Manager.Tel: +44 (0)20 8996 7070 Email: