ISO INTERNATIONAL STANDARD 21004 First edition 2006-11-01 Plastics piping systems Multilayer pipes and their joints, based on thermoplastics, for water supply Systemesdecanalisationsenplastique-Tubesmulticoucheset leursassemblages,abasedethermoplastiques,pourI'alimentation eneau Referencenumber ISO 21004:2006(E) @ISO 2006 ISO21004:2006(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation the unlikely event that a problem relating to it is found, please infom the Central Secretariat at the address given below. ISO2006 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, IsO's member body in the country of the requester. ISO copyright office Case postale 56·CH-1211Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland ii @ ISO 2006 - All rights reserved ISO21004:2006(E) Contents Page Foreword. iv Introduction 1 Scope 2 Normative references 3 Terms and definitions... 3.1 Terms and definitions related to construction ... 3.2 Terms and definitions related to construction groups. 3.3 Terms and definitions related to geometry...... 3.4 Termsanddefinitionsrelatedtoserviceconditions 3.5 Terms and definitions related to materials. 3.6 Terms and definitions related to material characteristics. 4 Products classification.. 4.1 Construction group.... 4.2 Referenceproduct standard. 8 4.3 PNRange. 4.4 Design coefficient... 8 4.5 Stiffness range... 4.6 Specific properties.. 5 Materials 5.1 General characteristics 5.2 Effect on water quality.... 9 5.3 Resistance to weathering 6 Long-term hydrostatic strength. 9 6.1 General..... 6.2 10 6.3 Procedure Il (testingof pipe constructionmethod) 10 Geometrical characteristics........ 11 7.1 General. 11 7.2 Dimensions.... 11 8 Mechanical characteristics. 11 8.1 Control points forpressure characteristics 11 8.2 Structural performance... .11 9 Fittings and valves.. 12 10 Fitnessforpurposeof thesystem... 12 10.1 Specific properties.... 12 10.2 13 10.3 Pressure reduction coefficients for operating temperatures.... 17 11 Marking...... AnnexA (normative)List ofthereferenceproductstandards. Annex B (normative)Application of design coefficient for multilayer pipes.... AnnexC(normative)Teartestforpolyethylene(PE)saddleassemblies AnnexD (normative)Pressure reductioncoefficients Bibliography... 25 @ ISO 2006 - All rights reserved ili ISO21004:2006(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies InternationalElectrotechnicalCommission(lEC)onallmattersofelectrotechnicalstandardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2 The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO21004 was prepared by Technical Committee ISO/TC 138,Plastics pipes, fittings and valves for the transport of fluids, Subcommittee SC 2,Plastics pipes andfittingsforwater supplies iv @ISO 2006-Allrights reserved ISO21004:2006(E) Introduction An overview of standards to b