ISO INTERNATIONAL STANDARD 4386-1 Fourth edition 2019-04 Plain bearings Metallic multilayer plain bearings - Part 1: Non-destructive ultrasonic testing of bond of thickness greater than or equal to 0,5 mm Paliers lisses Paliers lisses metalliques multicouches - Partie 1: Controle non destructif aux ultrasons des défauts d'adherence d'épaisseur supérieure ou égale a O,5 mm Reference number IS0 4386-1:2019(E) osi @ IS0 2019 IS0 4386-1:2019(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0 2019 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 or Iso's member body in the country of the requester. ISO copyright office CP 401 : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +41 22 749 01 11 Fax: +41 22 749 09 47 Email: [email protected] Website: www.iso.org Published in Switzerland ii @ IS0 2019 - All rights reserved IS0 4386-1:2019(E) Contents Page Foreword ..iv 1 Scope .1 2 Normative references 3 Terms and definitions 4 Symbols 5 Test equipment. ..2 5.1 Uitrasonic instrument .2 5.2 Probe. .2 5.3 Reference block .2 6 Preparation of test surface .2 7 Testing. .2 7.1 General ..2 7.2 Testing with a back-wall echo .2 7.3 Testing without a back-wall echo 8 Test classes 9 Defect groups ..6 10 Evaluation. ..7 10.1 General .7 10.2 Marking of defective areas ..8 10.3 Designation. ..8 Bibliography 9 @ IS0 2019 - All rights reserved iii