ISO INTERNATIONAL STANDARD 22825 Third edition 2017-09 Non-destructive testing of welds - Ultrasonic testing Testing of welds in austenitic steels and nickel-based alloys Essais non destructifs des assemblages soudes - Controle par ultrasons - Controle des soudures en aciers austénitiques et en alliages abasenickel Reference number ISO 22825:2017(E) ISO IS02017 IS0 22825:2017(E) Get more FREE standards from Standard Sharing Group and our chats COPYRIGHTPROTECTEDDOCUMENT IS02017,Published inSwitzerland All rights reserved. Unless otherwise specified, 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 or ISO's member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 [email protected] www.iso.org ii @ IS0 2017 - All rights reserved IS0 22825:2017(E) Contents Page Foreword iv Introduction 1 Scope 2 Normative references 3 Terms and definitions 4 Information required prior to testing.. 4.1 Itemstobedefinedbyspecification 4.2 Specific information required by the operator prior to testing 5 Personnel 6 Test equipment.. 6.1 Conventional eguipment, 6.2 Phased array equipment. 7 Range setting for compression waves, 8 Sensitivity setting 8.1 General. 8.2 Use of side-drilled holes. 8.3 Use of other reference reflectors. 9 Test procedure and ultrasonic techniques 9.1 Developmentofthetestprocedure 9.2 Content of the test procedure 9.3 Selection of ultrasonic technique(s) . 9.4 Optimization of test technique and draft of test procedure 9.5 Practical implications of the use of refracted compression waves 10 Classification and sizing of indications 11 Testing of welds 11.1 General.. 11.2 Surface condition and couplant fluid 11.3 Parent metal testing ... 11.4 Scanning... 11.5 Evaluation of indications.. .10 12 Test report 10 12.1 General data.. 10 12.2 Information related to the test equipment .10 12.3 Information related to the testing technique. 11 12.4 Results of testing . 11 Annex A (informative) Compression wave angle-beam techniques ..12 Annex B (informative) Stainless steel calibration blocks for range setting. .18 Annex C (informative) Reference blocks for sensitivity setting.. ..20 Bibliography 23 @ IS0 2017 - All rights reserved ii