ISO INTERNATIONAL STANDARD 20438 First edition 2017-06 Ships and marine technology - Offshore mooring chains Navires et technologie maritime - Chaines d'amarrage en haute mer Reference number IS0 20438:2017(E) International Organization for Standardization @ IS0 2017 =ZHEJIANG INSTOF STANDARDIZATION C15956617 vided by IHS under I itted without license from IHS IS020438:2017(E) COPYRIGHTPROTECTEDDOCUMENT IS02017,PublishedinSwitzerland 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 Intenationaibr Prganization for Standardization icensee-ZHEJIANG INST OF STANDARDIZRoISQ s1.7 - All rights reserved etworking permitted without license from IHS IS0 20438:2017(E) Contents Page Foreword ..iv 1 Scope 2 Normative references 3 Terms and definitions 4 Grade. 5 Materials 6 Shape, dimensions and tolerances ..3 Bibliography .22 Inteatinal oganzation @stS.2.0.17 - All rights reserved iii See=ZHEJIANG INST OF STANDARDIZATION C1 5956617 ed without license from IHS