ISO INTERNATIONAL STANDARD 11218 Second edition 2017-02 Aerospace Cleanliness classification for hydraulic fluids Aeronautique et espace-Classes de proprete des fluides hydrauliques Referencenumber IS011218:2017(E) Intemational Organization for Standardization @IS02017 e=ZHEJIANG INST OF STANDARDIZATION C15956617 itted without license from IHS IS0 11218:2017(E) 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. ISOcopyrightoffice Ch. de Blandonnet 8. CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +4122 749 09 47 copyright@iso.org www.iso.org Intemationaibr PrganizationforStandardization Uicensee-ZHEJIANG INST OF STANDARDIZoISQ 3q,7 -All rights reserved etworking permitted without license from IHS NotforResale, 2017/5/11 02:44:1 IS0 11218:2017(E) Contents Page Foreword ..iv 1 Scope 2 Normativereferences 3 Termsanddefinitions 4 Requirements 5 Identification statement (reference tothis document) 6 Revision of AS4059F 2 Intematinal oganzation @stS.20.17 - All rights reserved ili No reproduction or networking pe ed without license from IHS