Analysis of iron ores. Methods for the determination of phosphorus content. Molybdenum blue spectrophotometric method

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

15-10-1993

Publisher

British Standards Institution

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 (normative) Flowsheet of the procedure for the
     acceptance of analytical values for test samples
B (informative) Derivation of repeatability and
     permissible tolerance equations
C (informative) Precision data obtained by
     international analytical trials
Tables
1 Preparation of 6 mol/l hydrochloric acid
2 Aliquots of test solution or diluted test solution
B.1 Phosphorus contents of test samples for inter-
     laboratory tests
Figure
C.1 Least-squares fit of precision against X for
     phosphorus

Method for the determination of phosphorus contents between 0.003% (m/m) and 2% (m/m) in iron ores.

This part of ISO 4687 specifies a molybdenum blue spectrophotometric method for the determination of the phosphorus content of iron ores.

This method is applicable to phosphorus contents between 0,003 % (m/m) and 2 % (m/m) in natural iron ores, iron ore concentrates and agglomerates, including sinter products.

The presence of arsenic, barium or titanium does not affect the result.

Committee	W/-
DevelopmentNote	Supersedes 90/46640 DC Also numbered as ISO 4687-1 (09/2005) Reviewed and confirmed by BSI, October 2014. (09/2014)
DocumentType	Standard
Pages	14
PublisherName	British Standards Institution
Status	Current

BS 5660-1:1987	Methods of sampling iron ores Manual method of increment sampling
BS 5660-2:2001	Methods of sampling iron ores Sampling and sample preparation procedures
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 7020-6.2:1993

Analysis of iron ores. Methods for the determination of phosphorus content. Molybdenum blue spectrophotometric method

Table of Contents

Abstract

Scope

General Product Information

Standards Referencing This Book

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