ISO INTERNATIONAL STANDARD 20807 First edition 2004-03-01 Imperial College London, Version correct as of 24/12/2019 Non-destructive testing Qualification of personnel for limited applications of non-destructive testing Essais non destructifs Qualification du personnel pour des applications limitées en essais nondestructifs Licensed copy: Imperial College , Reference number ISO 20807:2004(E) ISO @ ISO 2004 ISO20807:2004(E) PDFdisclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In accepts no liability in this area. Adobe is atrademarkof AdobeSystems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below C ISO 2004 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, isO's member body in the country of the requester. ISO copyright office Casepostale 56.CH-1211Geneva 20 Tel. + 4122 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org ii @ISO 2004-All rights reserved ISO 20807:2004(E) Contents Page London, Version correct as of 24/12/2019 Foreword. iv Introduction 1 Scope. 2 Normative references . 3 Terms and definitions. 2 4 Responsibilities. 4.1 Certification body... 4.2 Qualifying body .... 4.3 Examination centres. 4.4 Employer.. 5 Domains of competence.. 6 Vision requirements. 7 Eligibility. 7.1 Eligibilityforexamination 7.2 Eligibility for the award of a certificate of qualification ... 8 Examinations 8.1 General. 8.2 Written examination... 8.3 Practicalexamination 8.4 Conduct of examination 8.5 Grading 9 Qualification 9.1 General.. 9.2 Certificates and wallet cards 9.3 Validity.. 10 Renewal. Licensed copy: Imperial 11 Re-qualification . 9 12 Files.... 9 Annex A (informative) Example syllabi and competencies.. Annex B (informative) Weighting of the practical elements... @ ISO 2004 - All rights reserved ili ISO 20807:2004(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies (iSO member bodies). The work of preparing International Standards is normally carried out through isO non-governmental, in liaison with isO, also take part in the work. isO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. as International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2. correct adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Version Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. isO shall not be held responsible for identifying any or all such patent rights. London, Personnelqualification. iv IsO2004-Allrightsreservec ISO 20807:2004(E) Introduction Since the effectiveness of any application of non-destructive testing depends upon the capabilities of the For this reason, ISO/TC 135 developed an International Standard, ISO 9712, to ensure that the certification of e.g., in limited applications of non-destructive testing, ISO TC135 SC 7 authorized a Working Group (WG 5) to limited NDT applications. This document represents the result of the deliberations of ISO/TC 135/SC 7/WG 5. particular application requiring specific training and experience, i.e., an application which i