ISO INTERNATIONAL STANDARD 16998 First edition 2003-07-01 Wood-based panels Determination of moisture resistance Boil test Panneaux a base de bois - Détermination de la résistance a I'humidite-Essaia I'eaubouillante Reference number ISO 16998:2003(E) ISO @ ISO 2003 ISO 16998:2003(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 trademark of Adobe Systems Incorporated. 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, 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 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 ii @ ISO 2003 - All rights reserved ISO 16998:2003(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (lSOmemberbodies).TheworkofpreparingInternationalStandardsisnormallycarriedoutthroughISo technical committees. Each member body interested in a subject for which a technical committee has been 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 16998 was prepared by Technical Committee ISO/TC 89, Wood-based panels. ISO 16998 is based on European Standard EN 1087-1. @ ISO 2003 - All rights reserved i ISO 16998:2003(E) INTERNATIONAL STANDARD Wood-based panels Determination of moisture resistance - Boil test 1 Scope This International Standard specifies a method of test for evaluating the bond quality of particleboards, OsB and fibreboards, intended for use in humid conditions. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated (including any amendments) applies. Iso 9424, Wood-based panels Determination of dimensions of test pieces ISO 12466-2, Plywood—Bonding quality—Part 2: Requirements Iso 16999, Wood-based panels - Sampling and cutting of test pieces 3 Principle Tensile strength, perpendicular to the plane of the panel (internal bond), is determined using test pieces which have been immersed in boiling water. 4 Apparatus 4.1 Sliding caliper, as specified in ISO 9424. 4.2 Laboratory water bath, temperature controlled, capable of raising the contents to boiling point at a specified rate (see 6.1) and maintaining boiling for not less than 2 h. chambers. This will prevent erosion of the test pieces by air bubbles or strong water flows. A level control device (e.g. float chamber) may also be required to maintain the water level as water will be lost due to vaporization. A back-flow connection between the water bath and the float chamber will also ensure preheating of water entering the water bath from the float chamber. 4.3Testing machine, as described in ISO 16984. 4.4 Testing blocks, of metal, hardwood or hardwood plywood), compatible with the fixing device, to which the test pieces are to be bonded (see Figure 1). Hardwood or hardwood plywood shall have a density greater than 600kg/m². When thin panels (of thickness less than 8 mm) or high-density panels (greater than 800 kg/m