ISO INTERNATIONAL STANDARD 9934-1 Third edition 2016-12-01 Non-destructive testing Magnetic particle testing - Part 1: General principles Essaisnondestructifs-Magnetoscopie Partie 1: Principes generaux du controle Reference number ISO 9934-1:2016(E) ISO @IS0 2016 IS0 9934-1:2016(E) COPYRIGHTPROTECTEDDOCUMENT IS0 2016, Published in Switzerland 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 i IS0 2016-All rights reserved IS0 9934-1:2016(E) Contents Page Foreword ..iv 1 Scope ..1 2 Normative references 3 Terms and definitions 4 Qualificationandcertificationofpersonnel ..2 5 Safety and environment 6 Testing procedure .2 7 Surface preparation .2 8 Magnetization .2 8.1 General requirements .2 8.2 Verificationofmagnetization .3 8.3 Magnetizingtechniques. .4 8.3.1 General .4 8.3.2 Current flow techniques .4 8.3.3 Magnetic flow techniques .6 Detectionmedia .10 9 9.1 Properties and selection of media .10 9.2 Testingofdetectionmedia .10 9.3 Application of detection media. .10 10 Viewing conditions ..10 11 Overall performance test .10 12 Interpretation and recording of indications ..11 13 Demagnetization .11 14 Cleaning. .11 15 Test report ..12 Annex A (informative)Example fordetermination ofcurrentsrequiredto achieve specified tangential field strengthsforvariousmagnetizationtechniques .13 Bibliography .17 IS0 2016-All rights reserved ili