ISO INTERNATIONAL STANDARD 26985 First edition 2008-04-15 Resilient floor coverings ldentification of linoleum and determination of cement content and ash residue Revetements de sol résilientsldentification du linoleum et determinationdelateneurencimentetdutauxdecendres Reference number ISO26985:2008(E) ISO @ ISO 2008 ISO 26985:2008(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 COPYRIGHTPROTECTEDDOCUMENT @ ISO 2008 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 Casepostale 56·CH-1211Geneva 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 2008 -All rights reserved ISO26985:2008(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies non-governmental, in liaison with isO, also take part in the work.isO collaborates closely with the International Electrotechnical Commission (IEC)onallmatters of electrotechnical standardization. adopted by the technical committees are circulated to the member bodies for voting. Publication as an 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. ISO26985wasprepared byTechnical CommitteeISO/TC219,Floor coverings. ISO2008-All rights reserved ii INTERNATIONAL STANDARD ISO26985:2008(E) Resilient floor coverings ldentification of linoleum and determinationof cementcontentandash residue 1 Scope This International Standard specifies methods for identifying linoleum and determining the cement content and ash residue of linoleum floor coverings. 2 Terms and definitions For the purposes of this document, the following terms and definitions apply. 2.1 ash residue residue that remains following incineration at 50o °C for 3 h 2.2 linoleumcement binder in linoleum, consisting of a mixture of linseed oil and/or vegetable drying oils, rosin and drying oil catalysts,which is converted to a semi-elastic mass by an oxidative curing process 3 Principles 3.1 Identification A small specimen is saponified in a solution of potassium hydroxide in methanol to identify linoleum from other floor coverings. 3.2 Composition 3.2.1 Cementcontent A specimen without the backing material is crumbled and mixed with a mixture of potassium hydroxide in methanol. After intensive stirring at 20 °C to 25 °C, the mixture is filtered and carefully dried. The difference between the initial mass and the mass of the residue is the defined mass of linoleum cement. 3.2.2 Ash residue To determine the amount of ash residue, a specimen without the backing material is incinerated and the mass of the residual ash is measured. @ ISO 2008 - All rights reserved 1 ISO26985:2008(E) 4 Apparatus and materials 4.1 Apparatus 4.1.1 Grater. 4.1.2 Tared beakers. 4.1.3 Porcelaincrucibles 4.1.4 Desiccator (vacuum type), containing a suitable desiccant, e.g. silica gel. 4.1.5Furnace, capable of being controlled at 500°C ±10°C. 4.1.6 Balance, having an accuracy of 0,1 mg. 4.1.7 Laboratory sieve, with a nominal aperture size of 0,5 mm. 4.1.8 Ultrasonic bath, or equivalent device. 4.1.9 Centrifuge or vacuum filter (type A2) and suction de