BS-EN-60325-2004.pdf
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1、BRITISH STANDARD BS EN 60325:2004 Radiation protection instrumentation Alpha, beta and alpha/beta (beta energy 60 keV) contamination meters and monitors The European Standard EN 60325:2004 has the status of a British Standard ICS 13.280 ? Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 01:35:
2、22 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 60325:2004 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 9 September 2004 BSI 9 September 2004 ISBN 0 580 44398 1 National foreword This British Standard is the official English language v
3、ersion of EN 60325:2004. It was derived by CENELEC from IEC 60325:2002. It supersedes BS IEC 60325:2002 which is withdrawn. The CENELEC common modifications have been implemented at the appropriate places in the text. The start and finish of each common modification is indicated in the text by tags
4、. The UK participation in its preparation was entrusted to Technical Committee NCE/2, Health physics instrumentation, 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 which imple
5、ment 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 publication doe
6、s 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 legal obligations. aid enquirers to understand the text; present to the responsible international/Europea
7、n 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 page, pages
8、 2 to 42, an inside back cover 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. DateComments Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 01:35:22 GMT+00:00 2006, Uncontrolled Cop
9、y, (c) BSI EUROPEAN STANDARD EN 60325 NORME EUROPENNE EUROPISCHE NORM July 2004 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels
10、2004 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60325:2004 E ICS 13.280 English version Radiation protection instrumentation - Alpha, beta and alpha/beta (beta energy 60 keV) contamination meters and monitors (IEC 60325:2002,
11、 modified) Instrumentation pour la radioprotection - Contaminamtres et moniteurs de contamination alpha, bta et alpha/bta (nergie des bta 60 keV) (CEI 60325:2002, modifie) Strahlenschutz-Messgerte - Alpha-, Beta- und Alpha/Beta- (Betaenergie 60 keV) Kontaminationsmessgerte und -monitore (IEC 60325:2
12、002, modifiziert) This European Standard was approved by CENELEC on 2004-05-01. 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 standard without any alteration. Up-to-date lists an
13、d 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 other language made by translation under the respon
14、sibility 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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hunga
15、ry, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 01:35:22 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Foreword The text of
16、 the International Standard IEC 60325:2002, prepared by SC 45B, Radiation protection instrumentation, of IEC TC 45, Nuclear instrumentation, together with the common modifications prepared by the CENELEC BTTF 111-3, Instrumentation for ionizing radiation measurement and protection, was submitted to
17、the formal vote and was approved by CENELEC as EN 60325 on 2004-05-01. 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) 2005-05-01 latest date by which the national standards c
18、onflicting with the EN have to be withdrawn (dow) 2007-05-01 Annex ZA has been added by CENELEC. _ Page 2 EN 60325:2004 Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 01:35:22 GMT+00:00 2006, Uncontrolled Copy, (c) BSI CONTENTS 1 Scope and object6 2 Normative references .7 3 Terms and defini
19、tions .7 4 Units 10 5 Classification of assemblies .10 6 General characteristics.11 6.1 Detection assemblies 11 6.2 Ease of decontamination .11 6.3 Sealing11 6.4 Alarm threshold.11 6.5 Instrument indication .12 6.5.1 For contamination meters 12 6.5.2 For monitors12 6.5.3 Indications in terms of acti
20、vity12 6.6 Effective range of measurement 12 6.7 Display13 6.8 Mechanical shocks 13 6.9 Setting up and maintenance facilities for electronic equipment 13 7 General test procedures .13 7.1 Tests.13 7.1.1 Qualification test13 7.1.2 Acceptance test.14 7.2 General.14 7.2.1 Basic principles .14 7.2.2 Per
21、missible variation of indication with variation of influence quantity14 7.2.3 Reference radionuclides 15 7.3 Background.15 7.4 Statistical fluctuations .15 8 Electrical characteristics.15 8.1 Influence of statistical fluctuations.15 8.1.1 Requirements 15 8.1.2 Test method 16 8.2 Response time 16 8.2
22、.1 Requirements 16 8.2.2 Test method 16 8.3 Interrelationship between response time and statistical fluctuations 17 8.4 Alarm threshold drift17 8.4.1 Requirements 17 8.4.2 Test method 17 8.5 Warm-up time test (for portable assemblies) .18 8.5.1 Meters and monitors18 8.5.2 Measurement assemblies 18 8
23、.6 Resolution time .19 8.6.1 For meters and monitors19 8.6.2 For detection assemblies.19 8.6.3 For measurement assemblies19 Page 3 EN 60325:2004 Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 01:35:22 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 8.6.4 Range limitation for a combination of dete
24、ction and measurement assembly.19 8.7 Overload protection.20 8.7.1 Requirements 20 8.7.2 Test method 20 8.8 Operating plateau (for detection assemblies only) .20 8.9 Threshold (for detection assemblies only) .21 9 Radiation characteristics 21 9.1 General.21 9.2 Surface emission rate response 21 9.2.
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