ISO INTERNATIONAL STANDARD 28721-3 First edition 2008-12-01 Vitreous and porcelain enamels Glass-lined apparatus for process plants - Part 3: Thermal shock resistance Emaux vitrifiés - Appareils émailles pour les installations industrielles Partie 3: Résistance au choc thermique Reference number ISO 28721-3:2008(E) @ ISO 2008 THS unde Not for Resale ISO 28721-3:2008(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 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 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. COPYRIGHTPROTECTED DOCUMENT @ ISO2008 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-1211Geneva 20 Tel. + 4122 749 01 11 Fax + 41 22 749 09 47 E-mail copyright@iso.org Web www.iso.org Published in Switzerland @ ISo 2008 - All rights reserved I without license from IHS Not for Resale ISO 28721-3:2008(E) Contents Page Foreword. iv 1 Scope 1 2 Terms and definitions... 3 Thermal shock diagram ... 2 4 Heating/cooling diagram... 4 5 Quality designation.... 6 Annex A (informative) Explanatory notes Bibliography.... Copyrght InternationalOrganizaiosadardizaoghtsreserved ii IHSunder se from IHS Not for Resale