ISO INTERNATIONAL STANDARD 4934 Second edition 2003-12-15 Steel and iron Determination of sulfur content Gravimetric method Aciers et fontes - Dosage du soufre - Méthode gravimétrique Reference number ISO 4934:2003(E) ISO @ ISO 2003 ISO 4934:2003(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 4934:2003(E) Contents Page 1 Scope 2 Normative references 3 Principle 4 Reagents . 2 5 Apparatus 3 6 Sampling ... 4 7 Procedure 4 8 Expression of results 6 9 Test report 7 Annex A (informative) Additional information on international cooperative tests 9 Annex B (informative) Graphical representation of precision data .... 10 @ ISO 2003 - All rights reserved ili ISO 4934:2003(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies technical committees. Each member body interested in a subject for which a technical committee has been 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 4934 was prepared by Technical Committee ISO/TC 17, Steel, Subcommittee SC 1, Methods of determination of chemical composition. Thissecondeditioncancelsandreplacesthefirstedition(lSO4934:198),whichhasbeentechnicallyrevised iv ISO2003-Allrightsreserved ISO 4934:2003(E) INTERNATIONAL STANDARD Steel and iron Determination of sulfur content Gravimetric method 1 Scope This International Standard specifies a gravimetric method for the determination of the sulfur content in steels the standardization of samples on which certified standard values are to be established. The method is applicable to a sulfur content between 0,003 % (mass fraction) and 0,35 % (mass fraction) 2 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. openings Iso 3696, Water for analytical laboratory use Specification and test methods IsO 5725-1, Accuracy (trueness and precision) of measurement methods and results Part 1: General principles and definitions for the determination of repeatability and reproducibility of a standard measurement method Iso 5725-3, Accuracy (trueness and precision) of measurement methods and results - Part 3: Intermediate measures of the precision of a standard measurement method IsO 14284, Steel and iron - Sampling and preparation of samples for the