Analysis of iron ores Method for the determination of combined water content

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

31-01-1989

Publisher

British Standards Institution

National foreword
Committees responsible
Method
1 Scope and field of application
2 References
3 Principle
4 Reagents
5 Apparatus
6 Sampling and samples
7 Procedure
8 Expression of results
9 Test report
Annexes
A Flowsheet on the procedure for the acceptance of
   analytical values for test samples
B Derivation of repeatability and permissible tolerance
   equations
C Graphical presentation of precision data obtained by
   international analytical trial
Tables
1 Mass of test portion
2 Combined water contents of test samples
Figures
1 Apparatus for the Karl Fischer measurement (two-
   furnaces-in-series type) (Example)
2 Apparatus for the Karl Fischer measurement
   (interchangeable furnace type) (Example)
3 Karl Fischer absorption cell (Example)
4 Least-squares fit of precision against X for combined
   water

Applicable to combined water contents in the range 0.05 to 10% (m/m) in natural iron ores, and iron ore concentrates and agglomerates including sinter products.

This International Standard specifies a titrimetric method for the determination of the combined water content of iron ores, using Karl Fischer solution.

This method is applicable to a concentration range of 0,05 to 10 % (m/m) of combined water in natural iron ores, and iron ore concentrates and agglomerates including sinter products.

NOTE The term “combined water means that part of the water content of an iron ore that can be removed only at temperatures substantially higher than 100 to 110 °C.

Committee	W/-
DevelopmentNote	Supersedes 86/38438 DC Also numbered as ISO 7335 (09/2005) Reviewed and confirmed by BSI, October 2014. (09/2014)
DocumentType	Standard
Pages	16
PublisherName	British Standards Institution
Status	Current

BS 5660-1:1987	Methods of sampling iron ores Manual method of increment sampling
BS 846:1985	Specification for burettes
ISO 5725:1986	Precision of test methods Determination of repeatability and reproducibility for a standard test method by inter-laboratory tests
BS 5660-2:1987	Methods of sampling iron ores Mechanical method of increment sampling and sample preparation
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 7020-3:1988

Analysis of iron ores Method for the determination of combined water content

Table of Contents

Abstract

Scope

General Product Information

Standards Referencing This Book

Category

Subcategory