BS ISO BRITISH STANDARD 11534:2006 ,Versioncorrectasof03/01/2015,(c)TheBritishStandardsInstitution2013 Iron ores : Determination of tin - Flame atomic absorption spectrometric method ICS 73.060.10 BSi 12 &23<,1*:,7+287%6, 3(50,66,21 (;&(37 $6 3(50,77%<&23<5,*+7 /$ British Standards BSISO11534:2006 National foreword This British Standard was published by BSI. It is the UK implementation of ISO 11534:2006. The UK participation in its preparation was entrusted to Technical Committee ISE/58, Iron ores. A list of organizations represented on ISE/58 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 immunityfrom legal obligations. Shau Kee Library,HKUST This British Standard was Amendmentsissuedsincepublication published under the authority of the Standards Policy and Amd. No. Date Comments Strategy Committee copi on 31 January 2007 BSI 2007 Licen ISBN 978-0-580-49905-0 BSISO11534:2006 INTERNATIONAL ISO STANDARD 11534 Second edition 2006-11-15 Ironores sDeterminationoftinFlame atomic absorption spectrometric method Minerais de fer-Dosagede I'étain-Methode parspectrometrie d'absorptionatomiquedanslaflamme Reference number ISO 11534:2006(E) SO ii BSISO11534:2006 StandardsInstitution2013 Contents Page Foreword. iv 1 Scope 2 Normative references 3 Principle The British 4 Reagents . 5 Apparatus 6 Samplingandsamples 6.1 Laboratory sample. 6.2 Preparation of predriedtest samples... asof03/01/2015 7 Procedure.... 7.1 Numberof determinations 7.2 Test portion .. 7.3 Blank test and check test.. 7.4 Determination.. 7.4.1 Decompositionof thetestportion 7.4.2 Treatmentof thetestsolution 7.4.3 Adjustmentofatomicabsorptionspectrometer Versioncorrect 7.4.4 Atomicabsorptionmeasurements..... 7.4.5 Preparationof calibration solutions 8 Expression of results .. 8.1 Calculationofmassfractionoftin. 8.2 General treatment ofresults.. 8.2.1 Repeatabilityandpermissibletolerances 8.2.2 Determination of the analytical result.. 8.2.3 Between-laboratories precision. 8.2.4 ,HKUST Check for trueness ... 8.2.5 Calculation of final result 8.3 Oxidefactor 9 Test report 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.... ili BSIS011534:2006 2013 Institution 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 interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and S non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission(lEC)onallmattersof electrotechnical standardization. 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 5 120 rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO 11534 was prepared by Technical Committee ISO/TC 102, Iron ore and direct reduced iron Subcommittee SC 2, Chemicalanalysis. This second edition cancels and replaces the first edition (iSO 11534:1998),which has beentechnically revised. It has been updated to alter the manner in which the precision data are presented. Versioncorrect iv BSISO11534:2006 StandardsInstitution2013 IronoresDeterminationoftinFlameatomicabsorption spectrometric method WARNING-This InternationalStandardmayinvolvehazardousmaterials,operations and equipment. This International Standard does not