ISO INTERNATIONAL STANDARD 6808 Third edition 2014-07-01 Plastics hoses and hose assemblies for suction and low-pressure discharge of petroleum liquids - Specification Tuyaux et flexibles en plastique pour aspiration et refoulement basse pression des liquides peétroliers-Spécifications Reference number ISO 6808:2014(E) LSO @ IS0 2014 HS under ted without license from IHS Not for Resale IS0 6808:2014(E) COPYRIGHTPROTECTEDDOCUMENT @ ISO 2014 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 copyrightoffice 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 @ IS0 2014 - All rights reserved No reproductic networking permited without license from IHS Not for Resale IS0 6808:2014(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. ..1 2 Normative references 3 Terms and definitions 4 Classification - Hose types ..2 5 Construction and materials - Requirements .2 6 Dimensions and tolerances .2 6.1 Diameter. .2 6.2 Length 7 Physical properties of finished hoses .3 7.1 Hydrostatic requirements at standard laboratory temperature .3 7.2 Hydrostatic requirements at 45 °C .3 7.3 Change in length (Type 2 only) .4 7.4 Suction resistance. .4 7.5 Reinforcement fracture. 4 7.6 Minimum bend test .5 7.7 Cold bend test. .5 7.8 Electrical continuity .5 8 Physical properties of the flexible thermoplastics material .5 8.1 Loss in mass on heating. .5 8.2 Tensile strength and elongation at break. ..5 8.3 Fuel resistance. .6 8.4 Oilresistance .6 8.5 Resistance to accelerated ageing ..6 9 Hose assemblies. .7 9.1 Couplings and method of attachment. .7 9.2 Test for security of coupling. ..7 9.3 Electrical bonding .7 9.4 Electrical wall resistance. .7 10 Frequency of testing .7 11 Type tests ..8 12 Marking ..8 12.1 Hoses .8 12.2 Hoseassemblies ..8 Annex A (normative) Test frequency Annex B (informative) Production tests ..10 Annex C (normative)Reinforcementfracture test .11 Annex D (normative) Coupling security test .13 Bibliography ..14 iii ded by IHS under lic ense with ISt ed without license from IHS Not for Resale