ISO INTERNATIONAL STANDARD 3248 Third edition 2016-08-01 Paints and varnishes Determination of the effect of heat PeinturesetvernisDeterminationdeseffetsdelachaleur Referencenumber IS03248:2016(E) @IS02016 IS0 3248:2016(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0 2016, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or IsO's member body in the country of the requester. ISO copyright office Chde Blandonnet8.CP 401 CH=1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyright@iso.org www.iso.org ii @ IS0 2016 - All rights reserved IS03248:2016(E) Contents Page Foreword iv 1 Scope. 1 2 Normative references .1 3 Principle 1 4 .1 Limitations. 5 .2 Sampling 6 Test panels 2 6.1 Substrate 2 6.2 Preparation and coating 2 6.3 Drying and conditioning 2 6.4 Thickness of coating. 2 7 Procedure. 2 7.1 Temperature and duration of the test 2 7.2 Determination 2 8 Precision 3 9 Test report. 3 S02916Allrightsreserved ii