ISO INTERNATIONAL 9712 STANDARD Fifth edition 2021-12 Non-destructivetesting Qualification and certificationofNDT personnel Essais non destructifs-Qualification etcertification du personnel END Referencenumber IS09712:2021(E) ISO ISO2021 ISO9712:2021(E) COPYRIGHTPROTECTEDDOCUMENT IS02021 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 on the internet or an intranet, without prior written permission.Permission can be requested from either IsO at the address below orIso'smemberbodyinthecountryoftherequester, ISO copyrightoffice CP40i:Ch.deBlandonnet8 CH-1214Vernier,Geneva Phone:+41227490111 Email:[email protected] Website:www.iso.org Published in Switzerland i IS02021-Allrightsreserved IS09712:2021(E) Contents Page Foreword .v Introduction .vi 1 Scope. .1 2 Normativereferences .1 3 Terms and definitions 2 4 Abbreviatedterms 6 5 Responsibilities .6 5.1 General. 6 5.2 Certificationbody 6 5.3 Authorized qualification body 8 5.4 Examinationcentre 8 5.5 Employer 8 5.6 Candidate 9 5.7 Certificate holders 9 5.8 Examiners 10 5.9 Referee. 10 6 Levels ofcertification 10 6.1 Level 1 10 6.2 Level2 10 6.3 Level3 11 Eligibility .11 7 7.1 General. 11 7.2 Training. 11 7.3 Industrial NDTexperience .13 7.3.1 General 13 7.3.2 Level3 13 7.3.3 Possiblereductions 14 7.4 Visionrequirementsalllevels 14 7.4.1 General 14 7.4.2 Nearvision acuity 14 7.4.3 Colourvision 14 7.4.4 Personnel administeringvisiontests 15 Examinations .15 8 8.1 Overview 15 8.1.1 15 General 8.1.2 Examinationelements 15 8.1.3 Examinationtime 16 8.1.4 Examination aids 16 8.2 Examination contentandgradingforLevel 1andLevel2 16 8.2.1 Generalexaminationelement .16 8.2.2 .16 Specificexaminationelement 8.2.3 Practicalexaminationelement 16 8.2.4 NDTinstructionwritingexaminationelement 17 8.2.5GradingoftheLevel1andLevel2examination 17 8.3 ExaminationcontentandgradingforLevel3 18 8.3.1 General 18 8.3.2 Basicexaminationelement 18 8.3.3 Mainmethodexaminationelement 19 8.3.4 GradingofLevel3examinations 19 8.4 Conductofexaminations 20 8.5 Re-examination. 20 IS02021-All rights reserved ii