ISO INTERNATIONAL STANDARD 19579 First edition 2006-10-01 Solid mineral fuels Determination of sulfur by IR spectrometry Combustibles minéraux solides - Determination du soufre par spectrometrie infrarouge Reference number ISO 19579:2006(E) @ ISO 2006 IHS under Not for Resale ISO 19579:2006(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 ?ISO2006 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-1211Geneva 20 Tel. + 4122 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ ISo 2006 - All rights reserved without license from IHS Not for Resale ISO 19579:2006(E) Contents Page Foreword Introduction 1 Scope 2 Normative references 3 Principle. 4 Apparatus 5 Reagents 6 Preparation of sample 7 Procedure. 8 Calibration check. 9 Expression of results 10 Precision 11 Test report. Copyrght InternationalOrganizaisadardizaoghtsreserved ii HS unde from IHS Not for Resale ISO 19579:2006(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies technicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeen established has the right to be represented on that committee. International organizations, governmental and InternationalElectrotechnicalCommission(lEC)onallmattersofelectrotechnicalstandardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2. 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 rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO 19579 was prepared by Technical Committee ISO/TC 27, Solid mineral fuels, Subcommittee SC 5, Methods of analysis. ISo 2006 - All rights reserved onal Organization for Standardizatior ISO 19579:2006(E) Introduction Sulfur is normally present in coal in three forms; inorganic sulfides such as pyrite (FeS2), inorganic sulfates associated with the mineral matter and organic sulfur in the carbonaceous substance. This International Standard describes a high-temperature combustion/infrared absorption method of analysis, whichisusedtodeterminethetotalsulfurcontentof coal. V HSund Not for Resale aadizai eworkingmitedwihoutlicenefrmH Not for Resale INTERNATIONAL STANDARD ISO 19579:2006(E) Solid mineral fuels Determination of sulfur by IR spectrometry Scope This International Standard specifies an alternative method of determining the total sulfur content of hard coal, brown coal, and lignite by high-temperature combustion and infrared (iR) absorption using commercially available instruments. This method has been shown to be applicable to coal samples having an ash yield of less than 4o %. 2 Normative references The following refe