BS IS0 5416:2006 BRITISH STANDARD Direct reduced iron - Determination of metallic iron - Bromine-methanol titrimetric method ICS 73.060.10 BSi NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW British Standards BSISO5416:2006 National foreword This British Standard is the UK implementation of ISO5416:2006. It supersedes BS ISO 5416:1997which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee ISE/58, Iron ores. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard Amendments/corrigendaissuedsincepublication was published under the authority ofthe Standards Policy and Strategy Date Comments Committee on 28 February 2009 BSI 2009 ISBN978058054376 0 BSISO5416:2006 ISO INTERNATIONAL 5416 STANDARD Third edition 2006-04-01 Direct reduced iron Determination of metallic iron Bromine-methanol titrimetric method Mineraisdeferprereduits-Dosage dufermetallique-Methode titrimetriqueaubrome-methanol Reference number ISO 5416:2006(E) ISO @ISO 2006 BSISO5416:2006 ISO5416:2006(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 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 the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. @ISO2006 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-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 @Iso2006All rights reserved BSISO5416:2006 TSo5416:2006(E) Contents Page Foreword iv 1 Scope 2 Normativereferences 3 Principle. 4 Reagents 5 Apparatus 6 Samplingandsamples. 6.1 Laboratory sample.... 6.2 Preparationoftestsamples... 7 Procedure.. 7.1 Numberofdeterminations 7.2 Testportion... 7.3 Blank test and check test. 7.4 Determination of hygroscopic moisture content 7.5 Determination. 8 Expressionofresults.... 8.1 Calculationofmassfractionofmetallic iron.. 8.2 General treatmentof results.... 6 Testreport. AnnexA(normative)Flowsheetoftheprocedurefortheacceptanceofanalyticalvaluesfortest Samples......... 8 AnnexB(informative)Derivationofrepeatabilityandpermissibletoleranceequations. .9 AnnexC(informative)Precisiondata obtainedby international analytical trials... 10 AnnexD(informative)Determinationofdegreeofmetallization. AnnexE(informative)Decontaminationofthewastesolutionsfromtheanalysis @ ISO 2006 - All rights reserved ili BSISO5416:2006 ISO5416:2006(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 InternationalElectrotechnicalCommission(lEC)onallmattersofelectrotechnicalstandardization International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2 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. rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO5416wasprepared byTechnical CommitteeISO/TC102,Ironoreand direct reduced iron,Subcommittee SC 2, Chemicalanalysis. This third edition c