Analysis of iron ores Method for the determination of acid-soluble iron (II) content. Titrimetric method

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

28-02-1990

Publisher

British Standards Institution

National foreword
Committees responsible
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 repeatability and permissible
    tolerance equations
C. Precision data obtained by international analytical
    trial
Table
B.1 Acid-soluble iron (II) contents of the test samples
Figure
C.1 Least-squares fit of precision against X for acid-
    soluble iron (II)

Method for natural and processed iron ores containing from 1% to 25% acid-soluble iron (II) and only traces of metallic iron.

This International Standard specifies a method for the determination of iron(II) content in natural and processed iron ores containing from 1 % to 25 % acid-soluble iron(II) and only traces of metallic iron. This method is specifically limited for use in conjunction with the reducibility test methods specified in ISO 4695 or ISO 7215.

This method is not applicable to ores containing more than 0,3 % (m/m) sulfur (as sulfide) and/or 5 % (m/m) free carbon. Experiments have shown that the acid-insoluble residue can be neglected, especially as regards the needs of the reducibility test methods concerned and the precision obtainable.

Committee	W/-
DevelopmentNote	Reviewed and confirmed by BSI, January 2005. (12/2004) Supersedes 88/36367 DC Also numbered as ISO 9035 (09/2005)
DocumentType	Standard
Pages	14
PublisherName	British Standards Institution
Status	Current

BS 6711-1:1986	Vocabulary relating to laboratory apparatus made essentially from glass, porcelain or vitreous silica Names for items of apparatus
BS 6598:1985	Method for determination of reducibility of iron ores
ISO 385-1:1984	Laboratory glassware — Burettes — Part 1: General requirements
BS 846:1985	Specification for burettes
ISO 7215:2015	Iron ores for blast furnace feedstocks Determination of the reducibility by the final degree of reduction index
BS 7020-1:1988	Analysis of iron ores Method for the preparation of pre-dried test samples for chemical analysis

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BS 7020-22:1990

Current

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Abstract

Scope

General Product Information

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