ISO INTERNATIONAL 11237 STANDARD Second edition 2017-09 Rubber hoses and hose assemblies - Compact wire-braid-reinforced hydraulic types for oil-based or water- basedfluidsSpecification Tuyaux et flexibles en caoutchouc-Types hydrauliques compacts avecarmaturedefilsmetalliquestressespourfluidesabased'huile ouabased'eau-Spécifications Referencenumber IS0 11237:2017(E) @IS02017 IS011237:2017(E) COPYRIGHTPROTECTEDDOCUMENT IS0 2017, Published in Switzerland 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 writtenpermission.PermissioncanberequestedfromeitherIsOattheaddressbeloworIso'smemberbodyinthecountryof the requester. ISO copyright office Ch.de Blandonnet8.CP401 CH-1214 Vernier, Geneva, Switzerland Tel.+41227490111 Fax +41 22 749 09 47 [email protected] www.iso.org ii IS02017-Allrightsreserved IS011237:2017(E) Contents Page Foreword .iv 1 Scope 2 Normativereferences .1 3 Terms and definitions .2 4 Classification 2 5 .2 Materialsand construction 5.1 Hoses .2 5.2 Hoseassemblies 2 Dimensions. .2 6.1 Hosediametersand coverthickness. 2 6.2 Concentricity .3 6.3 Hose coverthickness 3 7 Performancerequirements 3 7.1 .3 General 7.2 Change inlengthrequirements 4 7.3 Hydrostatic requirements 4 7.4 Minimum bend radius .5 7.5 Resistancetoimpulse 5 7.5.1 Oil-based fluid impulsetest. 5 7.5.2 Water-based fluid impulse test .6 7.5.3 Optionalimpulsetest. .6 7.6 Leakageofhoseassemblies .6 7.7 Cold flexibility. 6 7.8 Adhesionbetweencomponents 6 7.9 Vacuumresistance .7 7.10 Fluid resistance 7 7.10.1 General. 7 7.10.2 7 Oil resistance 7.10.3 Waterresistance .7 7.11 Ozoneresistance 7 7.12 Visualexamination .8 Marking 8 8 8.1 Hoses .8 8.2 Hoseassemblies 8 9 Recommendationsforlengthofsuppliedhosesandtolerancesonlengthsof hoseassemblies.. .8 AnnexA(normative)Typeandroutinetestingofproductionhoses .9 AnnexB(informative)Periodictestingofproductionhoses .10 AnnexC(informative)Recommendationsforlengthsofsuppliedhosesandlength tolerancesforhoseassemblies 11 IS0 2017-All rights reserved iii