BS 7020-4.3:1990
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Analysis of iron ores. Method for the determination of total iron content Silver reduction titrimetric method
Hardcopy , PDF
15-08-2001
English
31-10-1990
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Committees responsible
National foreword
Method
1 Scope
2 Normative references
3 Principle
4 Reagents
5 Apparatus
6 Sampling and samples
7 Procedure
8 Expression of results
9 Test report
Annexes
A Flowsheet of the procedure for the acceptance of
analytical values for test samples
B Derivation of precision statements
Tables
B.1 Total iron contents of test samples (fusion
decomposition)
B.2 Total iron contents of test samples (acid
decomposition)
Gives a method, free from mercury pollution, for determining total iron content in iron ores by silver reduction and potassium dichromate titration. Applicable to a concentration range of 30% to 72% of iron in natural iron ores, iron ore concentrates and agglomerates, including sinter products, containing not more than 0.1% Cu. Contents of vanadium normally present in iron ores are without effect. Covers normative references, principle, reagents, apparatus, sampling and samples, procedure, expression of results and test report.
| Committee |
W/-
|
| DocumentType |
Standard
|
| Pages |
14
|
| PublisherName |
British Standards Institution
|
| Status |
Withdrawn
|
| Standards | Relationship |
| ISO 9508:1990 | Identical |
| ISO 3082:2017 | Iron ores — Sampling and sample preparation procedures |
| ISO 1042:1998 | Laboratory glassware — One-mark volumetric flasks |
| ISO 648:2008 | Laboratory glassware — Single-volume pipettes |
| ISO 7764:2006 | Iron ores Preparation of predried test samples for chemical analysis |
| ISO 3083:1986 | Iron ores — Preparation of samples — Manual method |
| ISO 2596:2006 | Iron ores — Determination of hygroscopic moisture in analytical samples — Gravimetric, Karl Fischer and mass-loss methods |
| ISO 385-1:1984 | Laboratory glassware — Burettes — Part 1: General requirements |
| ISO 3081:1986 | Iron ores — Increment sampling — Manual method |
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