BS 7020-13:1988
Current
The latest, up-to-date edition.
Analysis of iron ores Method for the determination of arsenic content. Spectrophotometric method
Hardcopy , PDF
English
31-01-1989
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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.
| 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
|
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.
| 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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