BS 7020-16:1993
Current
The latest, up-to-date edition.
Analysis of iron ores Methods for the determination of nickel and/or chromium contents: flame atomic absorption spectrometric method
Hardcopy , PDF
English
15-10-1993
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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
Table
B.1 Nickel contents of test samples
Figures
C.1 Least-squares fit of precision against X for
nickel
C.2 Least-squares fit of precision against X for
chromium
Method for the determination of nickel and/or chromium contents between 0.003% (m/m) and 0.1% (m/m) in iron ores.
| Committee |
W/-
|
| DevelopmentNote |
DRAFT FOR COMMENT 89/47025 DC
|
| DocumentType |
Standard
|
| Pages |
16
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| SupersededBy |
This International Standard specifies a flame atomic absorption spectrometric method for the determination of nickel and/or chromium contents of iron ores.
This method is applicable to nickel and/or chromium contents between 0,003 % (m/m) and 0,1 % (m/m)1) in natural iron ores, iron ore concentrates and agglomerates, including sinter products.
| Standards | Relationship |
| ISO 9685:1991 | Identical |
| ISO 3082:2017 | Iron ores — Sampling and sample preparation procedures |
| ISO 1042:1998 | Laboratory glassware — One-mark volumetric flasks |
| ISO 648:2008 | Laboratory glassware — Single-volume pipettes |
| ISO 7764:2006 | Iron ores Preparation of predried test samples for chemical analysis |
| ISO 3083:1986 | Iron ores — Preparation of samples — Manual method |
| ISO 3081:1986 | Iron ores — Increment sampling — Manual method |
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