ISO INTERNATIONAL STANDARD 6743-4 Third edition 2015-08-01 Lubricants, industrial oils and related products (class L) Classification - Part 4: Family H (Hydraulic systems) Lubrifiants, huiles industrielles et produits connexes (classe L) - Classification- Partie 4: Famille H (Systemes hydrauliques) Reference number IS0 6743-4:2015(E) ISO @ IS0 2015 itted without license from IHS IS0 6743-4:2015(E) COPYRIGHT PROTECTED DOCUMENT IS0 2015, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form 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 copyright@iso.org www.iso.org @ IS0 2015 - All rights reserved IS0 6743-4:2015(E) Contents Page Foreword ..iv 1 Scope ..1 2 Normative references 3 Explanation of symbols used 4 Detailed classification ..2 Bibliography ii nitted without license from IHS