BS-EN-ISO-4869-3-2007.pdf
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1、BRITISH STANDARD BS EN ISO 4869-3:2007 Acoustics Hearing protectors Part 3: Measurement of insertion loss of ear-muff type protectors using an acoustic test fixture The European Standard EN ISO 4869-3:2007 has the status of a British Standard ICS 13.340.20 ? Licensed Copy: London South Bank Universi
2、ty, London South Bank University, Sat Aug 18 09:40:38 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS EN ISO 4869-3:2007 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 August 2007 BSI 2007 ISBN 978 0 580 55989 1 National foreword This Briti
3、sh Standard is the UK implementation of EN ISO 4869-3:2007. It supersedes BS EN 24869-3:1994 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee EH/1, Acoustics, to Subcommittee EH/1/1, Hearing. A list of organizations represented on this committee can be
4、 obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. Amendments issued since publication Amd
5、. No. DateComments Licensed Copy: London South Bank University, London South Bank University, Sat Aug 18 09:40:38 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 4869-3 July 2007 ICS 13.340.20Supersedes EN 24869-3:1993 English Version Acoustics - H
6、earing protectors - Part 3: Measurement of insertion loss of ear-muff type protectors using an acoustic test fixture (ISO 4869-3:2007) Acoustique - Protecteurs individuels contre le bruit - Partie 3: Mesurage de laffaiblissement acoustique des protecteurs du type serre-tte au moyen dun montage dessa
7、i acoustique (ISO 4869-3:2007) Akustik -Gehrschtzer - Teil 3: Messung der Schalldmmung von Kapselgehrschtzern unter Verwendung einer akustischen Prfvorrichtung (ISO 4869- 3:2007) This European Standard was approved by CEN on 30 June 2007. CEN members are bound to comply with the CEN/CENELEC Internal
8、 Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Management Centre or to any CEN member.
9、 This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions. CEN members
10、are the national standards bodies of 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, Swit
11、zerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2007 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No
12、. EN ISO 4869-3:2007: E Licensed Copy: London South Bank University, London South Bank University, Sat Aug 18 09:40:38 GMT+00:00 2007, Uncontrolled Copy, (c) BSI Foreword This document (EN ISO 4869-3:2007) has been prepared by Technical Committee ISO/TC 43 “Acoustics“ in collaboration with Technical
13、 Committee CEN/TC 211 “Acoustics“, the secretariat of which is held by DS. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by January 2008, and conflicting national standards shall be withdrawn at th
14、e latest by January 2008. This document supersedes EN 24869-3:1993. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see info
15、rmative Annex ZA, which is an integral part of this document. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finlan
16、d, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Endorsement notice The text of ISO 4869-3:2007 has been approved by CEN as EN ISO 486
17、9-3:2007 without any modifications. EN ISO 4869-3:2007 Licensed Copy: London South Bank University, London South Bank University, Sat Aug 18 09:40:38 GMT+00:00 2007, Uncontrolled Copy, (c) BSI Reference number ISO 4869-3:2007(E) INTERNATIONAL STANDARD ISO 4869-3 First edition 2007-07-01 Acoustics He
18、aring protectors Part 3: Measurement of insertion loss of ear-muff type protectors using an acoustic test fixture Acoustique Protecteurs individuels contre le bruit Partie 3: Mesurage de laffaiblissement acoustique des protecteurs du type serre-tte au moyen dun montage dessai acoustique EN ISO 4869-
19、3:2007 Licensed Copy: London South Bank University, London South Bank University, Sat Aug 18 09:40:38 GMT+00:00 2007, Uncontrolled Copy, (c) BSI ii Licensed Copy: London South Bank University, London South Bank University, Sat Aug 18 09:40:38 GMT+00:00 2007, Uncontrolled Copy, (c) BSI iii Foreword I
20、SO (the International 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 c
21、ommittee has been 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 electr
22、otechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the m
23、ember bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identi
24、fying any or all such patent rights. ISO 4869-3 was prepared by Technical Committee ISO/TC 43, Acoustics, Subcommittee SC 1, Noise. This first edition of ISO 4869-3 cancels and replaces ISO/TR 4869-3:1989, which has been technically revised. The technical changes are as follows: a) the title has bee
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