ISO INTERNATIONAL STANDARD 16862 First edition 2003-11-15 Paints and varnishes Evaluation of sag resistance Peintures et vernis - Evaluation de la résistance a la formation de festons Reference number ISO16862:2003(E) X ISO @ISO 2003 ISO16862:2003(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 instailed 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 atrademark 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 @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 @ ISO 2003 - All rights reserved ISO16862:2003(E) Contents Page 1 Scope 1 2 Normative references 3 Terms and definitions 2 4 Apparatus 5 Sampling .. 2 6 Test panels 2 7 Procedure.. 2 8 Expression of results 5 9 Precision 9 10 Test report 9 Annex A (normative) Sag index applicator blades Bibliography 9 ganizationforStand ii ISO 16862:2003(E) Foreword Iso (the International Organization for Standardization) is a worldwide federation of national standards bodies technicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeer 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 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. ISO 16862 was prepared by Technical Committee ISO/TC 35, Paints and varnishes, Subcommittee SC 9 Generaltestmethodsforpaintsandvarnishes. @ ISO 2003 - All rights reserved ISO 16862:2003(E) Introduction When a wet coat of paint is applied to an inclined surface, the coat will flow down the surface under its own certain wet-film thickness to be applied without this unwanted flow becoming objectionable. Flow down an in kilograms per cubic metre and g is the gravitational constant in metres per second squared. The cohesive and dvldl is the shear rate in reciprocal seconds. This International Standard describes two methods for giving rise to sagging or similar phenomena. The first method is carried out on a small scale using sag index applicators and the second is a larger-scale, practical test. Draanizationforstandardization'ghtsreserved V Coovriaht International Oraanization for Standardizatior ISO 16862:2003(E) INTERNATIONALSTANDARD Paints and varnishes Evaluation of sag resistance 1 Scope paints, varnishes and similar coating materials (coatings) when applied to a substrate and held in a vertical position. a) using a sag index applicator on a horizontally placed test panel which is afterwards put into a vertical position, or This International Standard is applicable to liquid coatings only 2 Normative references The following referenced documents are indispensable for the application of this document. For dated (including any amendments) applies