ISO INTERNATIONAL STANDARD 23277 Secondedition 2015-03-01 Non-destructive testing of welds - Penetrant testing Acceptance levels Controle non destructif des assemblages soudés - Controle par ressuageNiveauxd'acceptation Reference number IS0 23277:2015(E) ISO @IS02015 IS0 23277:2015(E) COPYRIGHTPROTECTEDDOCUMENT @ ISO 2015 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 Case postale 56 : CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland i @ IS0 2015 - All rights reserved IS0 23277:2015(E) Contents Page Foreword ..iv 1 Scope .1 2 Normative references 3 Terms and definitions 4 Testing parameters ..2 4.1 General .2 4.2 Sensitivity. 4.3 Surface condition .2 4.4 Process and technique 2 5 Acceptance levels .2 5.1 General 2 5.2 Evaluation of indications 5.3 Removal of imperfections .3 Annex A (informative) Recommended testing parameters 4 @ IS0 2015 - All rights reserved ii