ISO INTERNATIONAL STANDARD 10803 Second edition 2011-12-01 Design method for ductile iron pipes Methode de calcul des tuyaux en fonte ductile Reference number ISO 10803:2011(E) @ ISO 2011 by IHS under lic itted without license from IHS Not for Resale ISO 10803:2011(E) COPYRIGHTPROTECTEDDOCUMENT @ ISO2011 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 memberbody 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 2011 - All rights reserved py IHS unde ermitted without license from IHS Not for Resale ISO 10803:2011(E) Contents Page Foreword .iv 1 Scope 2 Normative references 3 Terms and definitions . 4 Design procedure. 5 Design for internal pressure 3 6 Design for external loads.. Annex A (informative) Dimensions of preferred and other class pipes... Annex B (informative) Allowable depths of cover for pipes conforming to Iso 2531 . ..12 Annex C (informative) Allowable depths of cover for pipes conforming to Iso 7186... Annex D (informative) Trench types ..58 Annex E (informative) Soil classification. ...59 Bibliography... ...60 Copyright internatina organizaio far Standardizalirn ghts reserved ii se from IHS Not for Resale ISO 10803:2011(E) Foreword Iso (the International Organization for Standardization) is a worldwide federation of national standards bodies technicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeen non-governmental, in liaison with isO, also take part in the work. isO collaborates closely with the 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. Subcommittee Sc 2, Cast iron pipes, fittings and their joints This second edition cancels and replaces the first edition (IsO 10803:1999), which has been technically revised. ISO 2011 - All rights reserved ional Organization for Standardizatior INTERNATIONAL STANDARD ISO 10803:2011(E) Design method for ductile iron pipes Scope This International Standard specifies the design of ductile iron pipes used for conveying water, sewerage and otherfluids with or without internal pressure, and with or without earth and traffic loading. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. Iso 2531, Ductile iron pipes, fitings, accessories and their joints for water applications Iso 7186, Ductile iron products for sewerage applications Iso 7268, Pipe components-Definition of nominal pressure Iso 10802, Ductile iron pipelines -Hydrostatic testing after installation 3Terms and definitions For the purposes of this document, the terms and definitions given in IsO 7268 and the following apply 3.1 allowable operating pressure PFA 3.2 allowable maximum operating pressure PMA 3.3 allowable site test pressure PEA maximum hydrostatic pressure that a newly installed component can withstand for a relatively short duration. when