BS ISO BRITISH STANDARD 10469:2006 Copper sulfide concentrates - Determination of copper . Electrogravimetric method ICS 73.060.99 BSi NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW British Standards BSIS010469:2006 National foreword This British Standard was published by BSI. It is the UK implementation of ISO 10469:2006. The UK participation in its preparation was entrusted to Technical Committee NFE/36, Copper lead and zinc ores and concentrates. A list of organizations represented on NFE/36 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 was Amendments issued sincepublication published undertheauthority of the Standards Policy and Amd. No. Date Comments Strategy Committee 0n 29 September 2006 @ BSI 2006 ISBN0580491471 BS ISO 10469:2006 ISO INTERNATIONAL STANDARD 10469 Second edition 2006-07-01 Copper sulfide concentrates Determination of copper - Electrogravimetric method Concentrésde sulfure de cuivre-Dosage du cuivreMethode électrogravimetrique Reference number ISO10469:2006(E) ISO = BSISO10469:2006 Contents Page Foreword, iv Introduction 1 Scope 2 Normative references 3 Principle. 4 Reagents 2 5 Apparatus 6 Sample. 6.1 Testsample 5 6.2 Test portion.... 5 7 Procedure 7.1 Number of determinations 7.2 Blank test.... 7.3 Dissolutionoftestportion.. 5 7.4 Separation of arsenic,antimony,tin, selenium and silver 5 7.5 Copper separation..... 6 7.5.1 Sulfide separation. 7.5.2 Hydroxide separation.. 7.6 Electrolytic deposition.. 7.7 FAAS determination of copper in the electrolyte,filter residues and sulfide precipitates. 7.7.1 FAAS determination of copper in the filtrate of the sulfide precipitation.... 8 7.7.2 Treatment of hydroxide precipitate in sulfide separation .... 8 7.7.3 FAAs determination of copper in the electrolyte, filter residues and precipitates (sulfide separation method).... .8 7.8 FAAS determination ofcopperin the electrolyte,filterresidues and precipitates (hydroxide separation method)..... 9 8 Expressionofresults. 10 9 Precision 10 9.1 Expressionofprecision. 10 9.2 Method for obtaining the final result (see Annex B). 10 9.3 Precisionbetweenlaboratories.... 9.4 9.4.1 Type of certified reference material (CRM) or reference material (RM). 12 10 Test report. 12 AnnexA(normative)Procedureforthepreparation and determination of the mass of apredried test portion.. 13 AnnexB(normative)Flowsheetof theprocedurefor theacceptance ofanalytical valuesfortest samples 15 AnnexC (informative)Derivationofprecision equations 16 ii BSIS010469:2006 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 non-governmental, in liaison with IsO, also take part in the work. Iso collaborates closely with the InternationalElectrotechnicalCommission(iEC)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. ISO 10469 was prepared by Technical Committee ISO/TC 183, Copper, lead, zinc and nickel ores and concentrates. This second edition cancels and replaces the first edition (IsO 10469:1994), which has been technically revised. iv BS ISO 10469:2006 Introduction Is0 10469:1994 underwent periodical review in 1999. Although the decision was made to confirm the International Standard at that time, significant comments were submitted by Japan.