1、 TECHNICAL REPORT IEC TR 60825-14 First edition2004-02 Safety of laser products Part 14:A users guide Reference number IEC/TR 60825-14:2004(E)LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.Publication numbering As from 1 January 1997
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3、on,the base publication incorporating amendment 1 and the base publication incorporating amendments 1 and 2.Further information on IEC publications The technical content of IEC publications is kept under constant review by the IEC,thus ensuring that the content reflects current technology.Informatio
4、n relating to this publication,including its validity,is available in the IEC Catalogue of publications(see below)in addition to new editions,amendments and corrigenda.Information on the subjects under consideration and work in progress undertaken by the technical committee which has prepared this p
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6、and date of publication.On-line information is also available on recently issued publications,withdrawn and replaced publications,as well as corrigenda.IEC Just Published This summary of recently issued publications(www.iec.ch/online_news/justpub)is also available by email.Please contact the Custome
7、r Service Centre(see below)for further information.Customer Service Centre If you have any questions regarding this publication or need further assistance,please contact the Customer Service Centre:Email:custserviec.ch Tel:+41 22 919 02 11 Fax:+41 22 919 03 00 LICENSED TO MECON Limited.-RANCHI/BANGA
8、LOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.TECHNICAL REPORT IECTR 60825-14 First edition2004-02 Safety of laser products Part 14:A users guide PRICE CODE IEC 2004 Copyright-all rights reserved No part of this publication may be reproduced or utilized in any form or by
9、any means,electronic or mechanical,including photocopying and microfilm,without permission in writing from the publisher.International Electrotechnical Commission,3,rue de Varemb,PO Box 131,CH-1211 Geneva 20,SwitzerlandTelephone:+41 22 919 02 11 Telefax:+41 22 919 03 00 E-mail:inmailiec.ch Web:www.i
10、ec.ch XD For price,see current catalogueCommission Electrotechnique InternationaleInternational Electrotechnical Commission LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 TR 60825-14 IEC:2004(E)CONTENTS FOREWORD.4 INTRODUCTION.6 1 S
11、cope and object.7 2 Terms and definitions.8 3 Administrative policies.16 3.1 Safety responsibilities.16 3.2 Competent persons.17 3.3 Laser Safety Officer.17 3.4 Information and training.18 4 Laser radiation hazards.19 4.1 Laser products.19 4.2 Exposure to laser radiation.23 4.3 Determining the level
12、 of laser exposure.23 5 Determining the maximum permissible exposure(MPE).28 5.1 General remarks.28 5.2 Repetitively pulsed or modulated lasers.28 5.3 Multiple wavelengths.29 5.4 Extended source MPEs.30 5.5 Hazard distance and hazard area.30 6 Associated hazards.31 6.1 Additional health hazards.31 6
13、.2 Hazards arising from the laser.32 6.3 Hazards arising from the environment.33 6.4 Control of associated hazards.34 7 Evaluating risk.35 7.1 Hazards and risks.35 7.2 Risk assessment:Stage 1 Identifying potentially injurious situations.35 7.3 Risk assessment:Stage 2 Assessing risk for potentially i
14、njurious situations.36 7.4 Risk assessment:Stage 3 Selecting control measures.38 8 Control measures.38 8.1 General.38 8.2 Hazard reduction.39 8.3 Enclosing the hazard.39 8.4 Hazard mitigation.41 8.5 Equipment servicing.46 9 Maintenance of safe operation.47 10 Incident reporting and accident investig
15、ation.48 11 Medical surveillance.48 Annex A(informative)Examples of interlock systems for laser controlled areas.54 Annex B(informative)Examples of calculations.59 Annex C(informative)Biophysical considerations.82 Bibliography.92 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LO
16、CATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.TR 60825-14 IEC:2004(E)3 Figure 1 Laser hazard symbol.18 Figure 2a Measurement set-up using a lens.26 Figure 2b Direct measurement set-up.27 Figure 2 Measurement set-ups.27 Figure A.1 Purpose of an interlock system.56 Figure A.2 Non-locking interlock system.57 Figure A.3 Locking interlock system.58 Figure B.1 Laser diode array with two groupings.76 Figure C.1 Anatomy of the eye.89 Figure C.2 Diagram of laser-induced damage in biological systems.90 Table
