ISO INTERNATIONAL STANDARD 13787 First edition 2003-05-01 Thermal insulation products for building equipment and industrial installations Determination of declared thermal conductivity Produits isolants thermiques pour I'equipement du batiment et les installations industrielles Détermination de la conductivite thermique déclarée Reference number ISO 13787:2003(E) ISO Copyright International Organization for Standardization @ISO2003 Not for Resale ISO13787:2003(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 shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In accepts no liability in this area. Adobe is a trademarkof AdobeSystems 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 parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below ?ISO2003 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-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 yemainagazainandardizato @ISO2003-All rights reserved nittedwithout licensefromIHS Not for Resale ISO 13787:2003(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies technicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeen International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. 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. rights. IsO shall not be held responsible for identifying any or all such patent rights. Technical Committee IsO/TC 163, Thermal performance and energy use in the built environment, between ISO and CEN (Vienna Agreement). Standard..". ii CopyrghtIntemalinal Organizationforstandardizalon'ghts reserved ISO 13787:2003(E) Contents Page Foreword.. Introduction 1 Scope.. 2 Normative references. 3 Terms and definitions . 4 Principles for the determination of declared thermal conductivity. 5 Determination and verification of declared thermal conductivity. 5.1 Measurement of thermal conductivity .... 5.2 Procedure for verification Annex A (informative) Verification based on curve comparison A.1General A.2 Principle. A.3 Test A.3.1 Measurement of thermal conductivity ... A.3.2 Procedure for comparison and decision AnnexB (informative)Statistical methodtoestablishthedeclaredthermalconductivitycurve.... B.1 General, .8 B.2 Symbols and units B.3 Establishment of declared values B.3.1 A large number of thermal conductivity results are available (n > 50 at each temperature) ... ....9 B.3.2 A small number of data are available (n ≤ 50) B.4 Verification of the declared curve .. B.5Examples B.5.1 Establishment of the declared curve.. B.5.2 Verification of the declared curve 12 Annex C (informative) Illustration of the procedure to verify thermal conductivity.. Bibliography @ ISO 2003 - All rights reserved tional Organization for Standardization Not for Resale ISO 13787:2003(E) Foreword This document (EN ISO 13787:2003) has been prepared by Technical Committee CEN/TC