ISO INTERNATIONAL STANDARD 28722 First edition 2008-10-15 Vitreousandporcelainenamels- Characteristics of enamel coatings applied to steel panels intended for architecture Emaux vitrifies-Caracteristiques des couches d'email appliquees sur lespanneauxd'acierdestinesaI'architecture Reference number ISO 28722:2008(E) @ISO2008 nsefrom IHS Not for Resale ISO28722:2008(E) PDFdisclaimer 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 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 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. COPYRIGHTPROTECTEDDOCUMENT ?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 member body in the country of the requester. ISO copyright office Casepostale56.CH-1211Geneva20 Tel.+ 4122749 0111 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @Iso 2008-All rights reserved without license from IHS Not for Resale ISO28722:2008(E) Contents Page Foreword 1 Scope 2 Normative references 3 Termsanddefinitions 4 Requirements for heavy and light gauge steel enamelled panels 4.1 Steel... 4.2 Application of coating.... 4.3 Final thickness of fired enamel.... 5 Functional characteristics of enamel coating 5.1 Adherencetest. 5.2 Porositytest. 5.3 Abrasion resistance 5.4 Impact resistance .... 5.5 Surface hardness (Mohs). 5.6 Scratch resistance... 5.7 5.8 Acidresistance 6 Aesthetic characteristics of enamel coating. 6.1 Surface appearance 6.2 Gloss.... 6.3 Colour 7 Resistance to graffiti CopyrightInternatinalOrganizationfrstandardizaion'ghtsreserved ili from IHS Not for Res: