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BS 7020-4.3:1990

Withdrawn
Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.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
Available format(s)

Hardcopy , PDF

Withdrawn date

15-08-2001

Language(s)

English

Published date

31-10-1990

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Withdrawn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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£112.00
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