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BS ISO 12739:2006

Current
Current

The latest, up-to-date edition.

Zinc sulfide concentrates. Determination of zinc. Ion-exchange/EDTA titrimetric method
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

31-07-2006

1 Scope
2 Normative references
3 Principle
4 Reagents
5 Apparatus
6 Sample
   6.1 Test sample
   6.2 Test portion
7 Procedure
   7.1 Number of determinations
   7.2 Blank test
   7.3 Dissolution of test portion
   7.4 Preparation of the ion-exchange column
   7.5 Adsorption of zinc on ion-exchange column
   7.6 Elution of zinc from ion-exchange column
   7.7 Titration
   7.8 Determination of the titration factor of the
       EDTA standard volumetric solution
8 Expression of results
9 Precision
   9.1 Expression of precision
   9.2 Procedure for obtaining the final result
   9.3 Between-laboratories precision
   9.4 Check of trueness
10 Test report
Annex A (normative) Ion-exchange resins and columns
Annex B (normative) Procedure for the preparation
        and determination of the mass of a predried
        test portion
Annex C (normative) Determination of cadmium by atomic
        absorption spectrometry
Annex D (normative) Flowchart of the procedure for the
        acceptance of analytical values for test samples
Annex E (informative) Effect of potentially interfering
        elements
Annex F (informative) Derivation of precision equations
Bibliography

Determines an ion-exchange/EDTA titrimetric method for the determination of the mass fraction of zinc in zinc concentrates.

This International Standard specifies an ion-exchange/EDTA titrimetric method for the determination of the mass fraction of zinc in zinc concentrates. The method is applicable to zinc sulfide concentrates having a mass fraction of zinc in the range from 11%to 62%.

Committee
W/-
DevelopmentNote
Supersedes 05/30116635 DC. (07/2006)
DocumentType
Standard
Pages
30
PublisherName
British Standards Institution
Status
Current
Supersedes

Standards Relationship
ISO 12739:2006 Identical

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ISO 1042:1998 Laboratory glassware One-mark volumetric flasks
ISO 648:2008 Laboratory glassware — Single-volume pipettes
ISO Guide 35:2017 Reference materials Guidance for characterization and assessment of homogeneity and stability
ISO 5725-2:1994 Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
ISO 3696:1987 Water for analytical laboratory use — Specification and test methods

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