Analysis of iron ores Method for the determination of arsenic content. Spectrophotometric method

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 of 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. Aliquot portions of distillate
2. Test samples for interlaboratory tests
Figures
1. Arsenic distillation apparatus
2. Least-squares fit of precision against X for arsenic

Applicable to arsenic contents in the range 0.0001 to 0.1% (m/m) in natural iron ores, and iron ore concentrates and agglomerates including sinter products.

This International Standard specifies a molybdenum blue spectrophotometric method for the determination of the arsenic content of iron ores.

This method is applicable to a concentration range of 0,000 1 to 0,1 % (m/m) (1 to 1 000 µg/g) of arsenic in natural iron ores, and iron ore concentrates and agglomerates including sinter products.

Committee	W/-
DevelopmentNote	Supersedes 86/38439 DC Also numbered as ISO 7834 (09/2005) Reviewed and confirmed by BSI, October 2014. (09/2014)
DocumentType	Standard
Pages	16
PublisherName	British Standards Institution
Status	Current

BS 5561:1979	Specification for spools for copper wire
BS 5660-1:1987	Methods of sampling iron ores Manual method of increment sampling
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 7020-13:1988

Current

Table of Contents

Abstract

Scope

General Product Information

Standards Referencing This Book

Category

Subcategory

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