IEC_62495-2011.pdf

IEC 62495 Edition 1.0 2011-04 INTERNATIONAL STANDARD Nuclear instrumentation Portable X-ray fluorescence analysis equipment utilizing a miniature X-ray tube IEC 62495:2011(E)Copyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,,downloaded on Nov-28-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2011 IEC,Geneva,Switzerland All rights reserved.Unless otherwise specified,no part of this publication may be reproduced or utilized in any form or by any means,electronic or mechanical,including photocopying and microfilm,without permission in writing from either IEC or IECs member National Committee in the country of the requester.If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication,please contact the address below or your local IEC member National Committee for further information.IEC Central Office 3,rue de Varemb CH-1211 Geneva 20 Switzerland Email:inmailiec.ch Web:www.iec.ch About the IEC The International Electrotechnical Commission(IEC)is the leading global organization that prepares and publishes International Standards for all electrical,electronic and related technologies.About IEC publications The technical content of IEC publications is kept under constant review by the IEC.Please make sure that you have the latest edition,a corrigenda or an amendment might have been published.Catalogue of IEC publications:www.iec.ch/searchpub The IEC on-line Catalogue enables you to search by a variety of criteria(reference number,text,technical committee,).It also gives information on projects,withdrawn and replaced publications.IEC Just Published:www.iec.ch/online_news/justpub Stay up to date on all new IEC publications.Just Published details twice a month all new publications released.Available on-line and also by email.Electropedia:www.electropedia.org The worlds leading online dictionary of electronic and electrical terms containing more than 20 000 terms and definitions in English and French,with equivalent terms in additional languages.Also known as the International Electrotechnical Vocabulary online.Customer Service Centre:www.iec.ch/webstore/custserv If you wish to give us your feedback on this publication or need further assistance,please visit the Customer Service Centre FAQ or contact us:Email:csciec.ch Tel.:+41 22 919 02 11 Fax:+41 22 919 03 00 Copyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,,downloaded on Nov-28-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.IEC 62495 Edition 1.0 2011-04 INTERNATIONAL STANDARD Nuclear instrumentation Portable X-ray fluorescence analysis equipment utilizing a miniature X-ray tube INTERNATIONAL ELECTROTECHNICAL COMMISSION R ICS 27.120 PRICE CODE ISBN 978-2-88912-441-1 Registered trademark of the International Electrotechnical Commission Copyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,,downloaded on Nov-28-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.2 62495 IEC:2011(E)CONTENTS FOREWORD.4 1 Scope and object.6 2 Normative references.6 3 Terms and definitions.6 4 General requirements.9 4.1 System description.9 4.2 Safety considerations.9 4.3 Other requirements.9 4.4 Training.9 5 Portable XRF analysis system requirements.10 5.1 General.10 5.2 Classification.10 5.2.1 General.10 5.2.2 Closed beam portable XRF analysis system.10 5.2.3 Open beam portable XRF analysis system.10 5.3 General safety requirements for all portable XRF analysis systems.10 5.3.1 Dose equivalent limitation.10 5.3.2 Radiation safety circuit.11 5.4 Requirements for a closed beam portable XRF analysis system.12 5.4.1 General.12 5.5 Requirements for an open beam portable XRF analysis system.12 5.5.1 General.12 5.5.2 Beam interlock or sensor.13 5.5.3 Guard or sample holder.13 5.5.4 Secondary push button high voltage safety switch.13 6 Warning labels and indicators.13 6.1 General.13 7 Test requirements.14 7.1 General.14 7.2 External electromagnetic noise.14 7.3 Special tests.14 7.4 Temperature test.15 7.4.1 Test equipment.15 7.4.2 Preparation.15 7.4.3 Procedure.15 7.4.4 Evaluation.15 7.4.5 Ambient temperature tests.15 7.5 Stray radiation.16 7.5.1 Equipment.16 7.5.2 Procedure.16 7.6 Open beam radiation level.16 7.6.1 General.16 7.6.2 Equipment.16 7.6.3 Measurement procedure.16 7.6.4 Dosimeter procedure.17 Copyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,,downloaded on Nov-28-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.62495 IEC:2011(E)3 Annex A(normative)Recommended standard values and ranges of influence quantities.18 Bibliography.19 Copyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,,downloaded on Nov-28-2014 by James Madison.No further reproducti