ISO-4689-3-2004.pdf
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1、INTERNATIONAL STANDARD ISO 4689-3 First edition 2004-04-01 Reference number ISO 4689-3:2004(E) ISO 2004 Iron ores Determination of sulfur content Part 3: Combustion/infrared method Minerais de fer Dosage du soufre Partie 3: Mthode par combustion et infrarouge Copyright International Organization for
2、 Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/19/2007 03:13:50 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 4689-3:2004(E) ii ISO 2004 All rights reserved PDF disclaimer This PDF file may con
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4、ility of not infringing Adobes licensing policy. The ISO Central Secretariat 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 pa
5、rameters 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. ISO 2004 All rights reserved. Unless other
6、wise 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 ISOs member body in the country of the requester. ISO copyright
7、 office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not f
8、or Resale, 04/19/2007 03:13:50 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 4689-3:2004(E) ISO 2004 All rights reserved iii Contents Page 1Scope 1 2Normative references 1 3Principle 1 4Reagents . 2 5Apparatus . 2 6Sampling and samples 5 7Procedure . 5 8Expression of
9、results 6 9Test report 9 Annex A (normative) Flowsheet of the procedure for the acceptance of analytical values for test samples . 10 Annex B (informative) Derivation of repeatability and permissible tolerance equations 11 Annex C (informative) Precision data obtained by international analytical tri
10、al 12 Bibliography . 14 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/19/2007 03:13:50 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 4689-3:2004(E) iv I
11、SO 2004 All rights reserved 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 technical committees. Each member body intereste
12、d in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Com
13、mission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the techni
14、cal 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 sh
15、all not be held responsible for identifying any or all such patent rights. ISO 4689-3 was prepared by Technical Committee ISO/TC 102, Iron ore and direct reduced iron, Subcommittee SC 2, Chemical analysis. This first edition, in part cancels and replaces ISO 4690:1986, which has been technically rev
16、ised. ISO 4689 consists of the following parts, under the general title Iron ores Determination of sulfur content: Part 2: Combustion/titration method Part 3: Combustion/infrared method The following part is under preparation: Part 1: Barium sulfate gravimetric method Copyright International Organiz
17、ation for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/19/2007 03:13:50 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 4689-3:2004(E) ISO 2004 All rights reserved v Introduction This part of IS
18、O 4689 is a new procedure. ISO 4689-2 was originally published as ISO 4690:1986, Iron ores Determination of sulfur content Combustion method. Under a policy of rationalization of the numbering system used in ISO/TC 102, it has been decided to re-designate ISO 4690:1986 as ISO 4689-2. It was further
19、decided to introduce a combustion/infrared method, numbered ISO 4689-3, i.e. this part of ISO 4689. When next revised, ISO 4689:1986, Iron ores Determination of sulfur content Barium sulfate gravimetric method, will be re-designated 4689-1. Copyright International Organization for Standardization Pr
20、ovided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/19/2007 03:13:50 MDTNo reproduction or networking permitted without license from IHS -,-,- . vi Copyright International Organization for Standardization Provided by IHS under license with ISO Licen
21、see=NASA Technical Standards 1/9972545001 Not for Resale, 04/19/2007 03:13:50 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARDISO 4689-3:2004(E) ISO 2004 All rights reserved 1 Iron ores Determination of sulfur content Part 3: Combustion/infrared method
22、 WARNING This part of ISO 4689 may involve hazardous materials, operations and equipment. This part of ISO 4689 does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this part of ISO 4689 to establish appropriate health and safety pra
23、ctices and determine the applicability of regulatory limitations prior to use. 1Scope This part of ISO 4689 specifies a combustion/infrared method, using a high-frequency induction furnace, for the determination of the sulfur content of iron ores. This method is applicable to sulfur contents between
24、 (mass fraction) and (mass fraction) in natural iron ores, iron ore concentrates and agglomerates, including sinter products. The method is not applicable to iron ores containing more than (mass fraction) of combined water. The apparatus, of which the metal filter is equipped with a heating device,
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