BS-EN-60645-5-2005.pdf
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1、BRITISH STANDARD BS EN 60645-5:2005 Electroacoustics Audiometric equipment Part 5: Instruments for the measurement of aural acoustic impedance/admittance The European Standard EN 60645-5:2005 has the status of a British Standard ICS 17.140.50 ? Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09
2、01:29:35 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 60645-5:2005 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 9 March 2005 BSI 9 March 2005 ISBN 0 580 45430 4 National foreword This British Standard is the official English language v
3、ersion of EN 60645-5:2005. It is identical with IEC 60645-5:2004. It supersedes BS EN 61027:1993, which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee EPL/29, Electro-acoustics, which has the responsibility to: A list of organizations represented on this c
4、ommittee can be obtained on request to its secretary. Cross-references The British Standards which 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 th
5、e “Search” 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 its correct application. Compliance with a British Standard does not of itself confer immunity from l
6、egal 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.
7、 Summary of pages This document comprises a front cover, an inside front cover, the EN title page, the foreword page, pages 3 to 29 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No.DateComme
8、nts Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 01:29:35 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD EN 60645-5 NORME EUROPENNE EUROPISCHE NORM January 2005 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Eur
9、opisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2005 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60645-5:2005 E ICS 17.140.50 Supersedes EN 61027:1993 English version El
10、ectroacoustics Audiometric equipment Part 5: Instruments for the measurement of aural acoustic impedance/admittance (IEC 60645-5:2004) Electroacoustique Appareillage audiomtrique Partie 5: Instruments pour la mesure de limpdance ou de ladmittance aurale (impdancemtres ou admittancemtres) (CEI 60645-
11、5:2004) Akustik Audiometer Teil 5: Gerte zur Messung der akustischen Impedanzen/Admittanzen des Gehrs (IEC 60645-5:2004) This European Standard was approved by CENELEC on 2004-12-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for givi
12、ng 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 Central Secretariat or to any CENELEC member. This European Standard exists in three official v
13、ersions (English, French, German). A version in any 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
14、 of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: sheffield
15、un sheffieldun, na, Thu Nov 09 01:29:35 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Foreword The text of document 29/563/FDIS, future edition 1 of IEC 60645-5, prepared by IEC TC 29, Electroacoustics, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60645-5 on 2004-12-
16、01. This European Standard supersedes EN 61027:1993. 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) 2005-09-01 latest date by which the national standards conflicting with th
17、e EN have to be withdrawn (dow) 2007-12-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 60645-5:2004 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following notes have to
18、be added for the standards indicated: ISO 389-1 NOTE Harmonized as EN ISO 389-1:2000 (not modified). ISO 389-2 NOTE Harmonized as EN ISO 389-2:1996 (not modified). _ Page 2 EN 606455:2005 Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 01:29:35 GMT+00:00 2006, Uncontrolled Copy, (c) BSI CONTE
19、NTS INTRODUCTION.4 1 Scope.5 2 Normative references .5 3 Terms and definitions .6 4 Requirements for specific instruments 9 5 General specifications 10 6 Demonstration of conformity with specifications14 7 Calibration cavities.17 8 General requirements.17 9 Symbols, forms and formats for acoustic im
20、pedance/admittance data.19 10 Additional characteristics to be specified by the manufacturer 20 Annex A (informative) Routine calibration.23 Annex B (informative) Units and terms.24 Annex C (informative) Overall temporal characteristics 26 Annex ZA (normative) Normative references to international p
21、ublications with their corresponding European publications .28 Bibliography29 Page 3 EN 606455:2005 Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 01:29:35 GMT+00:00 2006, Uncontrolled Copy, (c) BSI INTRODUCTION Developments in the field of diagnostic hearing measurement have resulted in a n
22、umber of instruments designed to evaluate the acoustic impedance/admittance of the human ear by means of acoustic probe signals having different frequencies and temporal characteristics. The practical use of such instruments concerns to a large extent the measurement of changes in acoustic impedance
23、/admittance caused either by varying the air pressure in the external acoustic meatus or by activating the middle ear muscle reflex. Page 4 EN 606455:2005 Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 01:29:35 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ELECTROACOUSTICS AUDIOMETRIC EQUIPMENT
24、 Part 5: Instruments for the measurement of aural acoustic impedance/admittance 1 Scope This part of IEC 60645 applies to instruments designed primarily for the measurement of acoustic impedance/admittance in the human external acoustic meatus using a stated probe tone. It is recognized that other p
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