AS 2917.3-2008

1-AS 2917.3-2008 Copper sulfide concentrates - Part 3: Determination of copper-Electrogravimetric method
4-PREFACE
5-CONTENTS
6-INTRODUCTION
7-1 Scope
7-2 Normative references
7-3 Principle
8-4 Reagents
10-5 Apparatus
11-6 Sample
11-6.1 Test sample
11-6.2 Test portion
11-7 Procedure
11-7.1 Number of determinations
11-7.2 Blank test
11-7.3 Dissolution of test portion
11-7.4 Separation of arsenic, antimony, tin, selenium and silver
12-7.5 Copper separation
13-7.6 Electrolytic deposition
14-7.7 FAAS determination of copper in the electrolyte, filter residues and sulfide precipitates
15-7.8 FAAS determination of copper in the electrolyte, filter residues and precipitates (hydroxide separation method)
16-8 Expression of results
16-9 Precision
16-9.1 Expression of precision
16-9.2 Method for obtaining the final result (see Annex B)
17-9.3 Precision between laboratories
17-9.4 Check of trueness
18-10 Test report
19-Annex A (normative) Procedure for the preparation and determination of the mass of a predried test portion
21-Annex B (normative) Flowsheet of the procedure for the acceptance of analytical values for test samples
22-Annex C (informative) Derivation of precision equations