BS-EN-60942-2003.pdf
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1、BRITISH STANDARD BS EN 60942:2003 Electroacoustics Sound calibrators The European Standard EN 60942:2003 has the status of a British Standard ICS 17.140.50 ? Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 04:35:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 60942:2003 This British Stand
2、ard was published under the authority of the Standards Policy and Strategy Committee on 10 July 2003 BSI 10 July 2003 ISBN 0 580 42229 1 National foreword This British Standard is the official English language version of EN 60942:2003. It is identical with IEC 60942:2003. It supersedes BS EN 60942:1
3、998 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee EPL/29, Electroacoustics, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards wh
4、ich implement international or European 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 “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This public
5、ation 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 obligations. aid enquirers to understand the text; present to the responsible internatio
6、nal/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. Summary of pages This document comprises a front cover, an inside front cover, the EN title
7、page, pages 2 to 90, 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. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 04:35:06 GMT+00:00 2006, Uncontr
8、olled Copy, (c) BSI EUROPEAN STANDARD EN 60942 NORME EUROPENNE EUROPISCHE NORM May 2003 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 B
9、russels 2003 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60942:2003 E ICS 17.140.50 Supersedes EN 60942:1998 + A1:2001 English version Electroacoustics Sound calibrators (IEC 60942:2003) Electroacoustique Calibreurs acoustique
10、s (CEI 60942:2003) Elektroakustik Schallkalibratoren (IEC 60942:2003) This European Standard was approved by CENELEC on 2003-04-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national
11、standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any
12、 other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finl
13、and, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 04:35:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Foreword The text of d
14、ocument 29/528/FDIS, future edition 3 of IEC 60942, prepared by IEC TC 29, Electroacoustics, in cooperation with the International Organization of Legal Metrology (OIML), was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60942 on 2003-04-01. This European Standard supe
15、rsedes EN 60942:1998 + A1:2001. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2004-01-01 latest date by which the national standards conflicting with the EN have to be withd
16、rawn (dow) 2006-04-01 Annexes designated “normative“ are part of the body of the standard. In this standard, annexes A, B, C and ZA are normative. Annex ZA has been added by CENELEC. The most significant changes from the previous edition are: the inclusion of maximum permitted uncertainties of measu
17、rement within the tolerance limits; the inclusion of a normative annex giving the format for reporting results of pattern evaluation tests; changes to the class designations; specification of the type designation of the microphone to be used to determine the class; harmonization of the range of oper
18、ating environmental conditions with those for sound level meters. Specifications for equivalent free-field and diffuse-field levels have been removed. _ Endorsement notice The text of the International Standard IEC 60942:2003 was approved by CENELEC as a European Standard without any modification. I
19、n the official version, for Bibliography, the following note has to be added for the standard indicated: IEC 61000-6-2 NOTE Harmonized as EN 61000-6-2:2001 (modified). _ Page 2 EN 60942:2003 Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 04:35:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI CO
20、NTENTS INTRODUCTION.4 1 Scope.5 2 Normative references5 3 Terms and definitions .6 4 Reference environmental conditions8 5 Requirements .8 5.1 General .8 5.2 Sound pressure level .10 5.3 Frequency .11 5.4 Influence of static pressure, air temperature and humidity12 5.5 Total distortion.14 5.6 Power
21、supply requirements14 5.7 Specification and calibration of microphones14 5.8 Electromagnetic compatibility.15 6 Instrument marking and documentation.16 6.1 Marking of the sound calibrator16 6.2 Individual calibration chart for a class LS sound calibrator17 6.3 Instruction manual .17 Annex A (normati
22、ve) Pattern evaluation tests .19 A.0 Introduction19 A.1 Submission for test 20 A.2 Principal values20 A.3 Marking of the sound calibrator and supplied documentation 20 A.4 Performance tests at and around reference environmental conditions.20 A.5 Environmental tests .26 A.6 Electromagnetic compatibil
23、ity.34 Annex B (normative) Periodic tests.38 B.0 Introduction38 B.1 Submission for test 38 B.2 Preliminary inspection 39 B.3 Performance tests39 B.4 Calibration of the sound calibrator with other models of microphone .42 B.5 Documentation.42 Annex C (normative) Format for the pattern evaluation repo
24、rt .44 C.0 Introduction44 C.1 Marking44 C.2 Submission for test 44 C.3 Pattern evaluation report45 Annex ZA (normative) Normative references to international publications with their corresponding European publications 88 Bibliography90 Page 3 EN 60942:2003 Licensed Copy: sheffieldun sheffieldun, na,
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