ISO/TR TECHNICAL REPORT 27165 First edition 2012-10-15 Thermoplastics piping systems Guidance for definitions of wall constructions for pipes Systemes de canalisations thermoplastiques Lignes directrices pour les definitions relatives a la construction des parois de tubes Reference number ISO/TR 27165:2012(E) ISO @ISO2012 by IHS under lic No reproduction or networking permitted without license from IHS Not for Resale ISO/TR 27165:2012(E) COPYRiGHTPROTECTEDDOCUMENT ISO2012 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing 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. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland ISO 2012-All rights reserved or networking permited withoutlicense from IHS Not for Resale ISO/TR 27165:2012(E) Contents Page Foreword Introduction 1 Scope. 2 Normative references 3 Terms and definitions. 3.1 Materials 3.2 Coated pipes. 3.3 Solid wall pipes. 3.4 Multilayer pipes.... 3.5 Structured wall pipes 3.6 Double wall piping system. taonallhred ili d by IHS under I se with ISt ed without license from IHS Not for Resale