ISO INTERNATIONAL STANDARD 3994 Fourth edition 2014-08-15 Plastics hoses Helical- thermoplastic-reinforced thermoplastics hoses for suction and discharge of aqueous materials - Specification Tuyaux en plastiques-Tuyaux thermoplastiques a renforcement thermoplastique en spirale pour aspiration et refoulement de matieres aqueuses-Specifications Reference number ISO 3994:2014(E) SO CopyrightInternationalOrganization for Standardization @IS02014 t licensefrom IHS Not for Resale IS03994:2014(E) COPYRIGHTPROTECTEDDOCUMENT @ISO2014 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 Case postale 56.CH-1211 Geneva 20 Tel. + 4122 749 0111 Fax +41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ IS0 2014 - All rights reserved No reproduction or networking permited without license from IHS Not for Resale IS03994:2014(E) Contents Page Foreword ..iv Introduction.. ..V 1 Scope. ..1 2 Normative references ..1. 3 Terms and definitions ..1 4 Classification .2 5 Materials and construction .2 6 Dimensions and tolerances .2 6.1 Nominal bores, inside diameters and tolerances .2 6.2 Length tolerances .2 7 Performance requirements .3 7.1 Hydrostatictesting at 23°C±2°C .3 7.2 Hydrostatic testing at 55 °C ±2°C 4 7.3 Maximum working pressure. 4 7.4 Tensiletest .5 7.5 Vacuumtest .5 7.6 Reinforcementfracturetest .5 7.7 Minimumbendradius 6 7.8 Cold-bend radius .6 7.9 Loss in mass on heating .6 7.10 Exposure to xenon-arclamp .7 8 Type,routineandproductiontesting .7 9 Marking .7 10 Recommendationsforpackingandstorage .7 11 Test report/certificate AnnexA (normative)Tensiletest. Annex B (normative) Vacuum test ..10 AnnexC(normative)Reinforcementfracturetest ..11 AnnexD (normative) Typeand routinetests ..13 AnnexE (informative)Recommendedtestsforproductiontesting ..14 Bibliography .15 iii orStand nout license from IHS Not for Resale