AS 2678.1-2008

1 - AS 2678.1-2008 Zinc sulfide concentrates-Chemical analysis - Part 1: Determination of zinc-Solvent extraction and EDTA titrimetric method
4 - PREFACE
5 - CONTENTS
7 - 1 Scope
7 - 2 Normative references
7 - 3 Principle
8 - 4 Reagents
9 - 5 Apparatus
9 - 6 Sample
9 - 6.1 Test sample
9 - 6.2 Test portion
9 - 7 Procedure
9 - 7.1 Number of determinations
10 - 7.2 Blank test
10 - 7.3 Dissolution of test portion
10 - 7.4 Extraction
10 - 7.5 Titration
11 - 8 Expression of results
12 - 9 Precision
12 - 9.1 Expression of precision
12 - 9.2 Procedure for obtaining the final result
12 - 9.3 Between-laboratories precision
13 - 9.4 Check of trueness
14 - 10 Test report
15 - Annex A (normative) Procedure for the preparation and determination of the mass of a predried test portion
17 - Annex B (normative) Flowchart of the procedure for the acceptance of analytical values for test samples
18 - Annex C (normative) Elements that interfere with this method
19 - Annex D (informative) Derivation of precision equations
24 - Bibliography

Adopts ISO13291:2006 to provide determination of zinc in zinc sulphide concentrates by a solvent extraction and EDTA titrimethric method.

Originated as AS 2678.1-1984.
Second edition 2008.