ISO INTERNATIONAL STANDARD 10979 Second edition 2019-01 Identification of fuel assemblies for nuclear power reactors Systeme d'identification des assemblages combustibles destinés aux réacteurs nucléaires Reference number IS0 10979:2019(E) ISO @ IS0 2019 IS0 10979:2019(E) nobno gpelloolsiigqml COPYRIGHTPROTECTEDDOCUMENT ISO 2019 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting beloworIso'smemberbodyinthecountryoftherequester. ISO copyright office CP 40i:Ch.de Blandonnet 8 CH-1214 Vernier, Geneva Phone:+4122749 0111 Fax: +4122 749 09 47 Email: [email protected] Website:www.iso.org Published in Switzerland ii @ IS0 2019 - All rights reserved IS0 10979:2019(E) Contents Page Foreword iv 1 Scope 1 2 Normative references. .1 3 Terms and definitions 1 4 Basicrequirementsforidentificationsystems 2 4.1 Identification code. 2 4.2 Allocation of the identification code 2 4.3 Determining the test character 2 4.4 Additional marking 2 5 Style of characters and application of identification mark 5.1 Style of characters 3 5.2 Arrangement of identification code on fuel assembly 3 5.3 Location and application of identification code on fuel assembly 3 5.4 Size of characters comprising identification code. 3 5.5 Method of application of identification code to fuel assembly. 3 6 Fuel assembly identification after modification of the fuel assembly 3 nobnoJgpelloolsigqml 7 Other identification systems .3 Bibliography 4 @ IS0 2019 - All rights reserved iii