ISO INTERNATIONAL STANDARD 4684 IULTCS/IUC 5 First edition 2005-11-01 Leather Chemical tests Determination of volatile matter Cuir- Essais chimiques Détermination des matieres volatiles Reference number ISO 4684:2005(E) IULTCS/ IUC 5:2005(E) cs @ISO2005 ISO 4684:2005(E) IULTCS/IUC 5:2005(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 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. ?ISO2005 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 ii @ISO2005-All rights reserved ISO 4684:2005(E) IULTCS/IUC 5:2005(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies (IsO member bodies). The work of preparing International Standards is normally carried out through ISO non-governmental, in liaison with isO, also take part in the work. IsO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. The main task of technical committees is to prepare International Standards. Draft International Standards 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 ISO 4684 was prepared by the European Committee for Standardization (CEN) Technical Committee CEN/TC 289, Leather, in collaboration with the Chemistry Commission of the International Union of Leather Technologists and Chemists Societies (IUC Commission, IULTCS), in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement). It is based on IULTCS method IUC 5. advancement of leather science and technology. IULTCs has three Commissions, which are responsible for establishing international methods for the sampling and testing of leather. ISO recognizes IULTCS as an international standardizing body for the preparation of test methods for leather. @ Iso 2005 - All rights reserved ii ISO 4684:2005(E) INTERNATIONAL STANDARD IULTCS/IUC 5:2005(E) Leather Chemical tests Determination of volatile matter 1 Scope This International Standard specifies a method of determination of volatile matter which is applicable to all leathertypes. It is not possible to determine the exact moisture content of leather by this method. This is because at elevated temperatures other volatile substances escape and tannins and fats can be oxidized. Some absorbed water may be left in the leather after drying. Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. Iso 2418, Leather— Chemical, physical and mechanical and fastness tests — Sampling location IsO 4044, Leather Preparation of chemical test samples 3 Principle Leather samples are finely ground and dried in an oven at 102 °C ± 2 °C to constant mass. The volatile matter is expressed as the ratio of th