BS ISO 12739:2006
Current
The latest, up-to-date edition.
Zinc sulfide concentrates. Determination of zinc. Ion-exchange/EDTA titrimetric method
Hardcopy , PDF
English
31-07-2006
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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.
| Committee |
W/-
|
| DevelopmentNote |
Supersedes 05/30116635 DC. (07/2006)
|
| DocumentType |
Standard
|
| Pages |
30
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
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%.
| Standards | Relationship |
| ISO 12739:2006 | Identical |
| ISO 9599:2015 | Copper, lead, zinc and nickel sulfide concentrates Determination of hygroscopic moisture content of the analysis sample Gravimetric method |
| ISO 4787:2010 | Laboratory glassware Volumetric instruments Methods for testing of capacity and for use |
| ISO 385:2005 | Laboratory glassware — Burettes |
| 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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