BS 7020-20:1990
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
Analysis of iron ores Method for the determination of water soluble chloride content. Ion-selective electrode method
Hardcopy , PDF
31-05-2007
English
31-10-1990
Important note : Users cannot be edited or removed once added to your Multi user PDF.
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. 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 trials
Tables
1. Calibration solutions required for each range of
chloride content
2. Preparation of calibration solutions
3. Electrode potentials related to chloride
concentration
B.1 Water-soluble chloride contents of test samples
Figure
C.1 Least-squares fit of precision against X for
water soluble chloride
Gives an ion-selective electrode method for determining water soluble chloride content of iron ores. Applicable to a concentration range of 0.005% to 0.1% of water soluble chloride in natural iron ores, and concentrates and agglomerates including sinter products. Covers normative references, principle, reagents, apparatus, sampling and samples, procedure, expression of results and test report.
| Committee |
W/-
|
| DevelopmentNote |
Reviewed and confirmed by BSI, January 2005. (12/2004) Supersedes 88/38041 DC Also numbered as ISO 9517 (09/2005)
|
| DocumentType |
Standard
|
| Pages |
14
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |
| Standards | Relationship |
| ISO 9517:1989 | Identical |
| BS 5660-1:1987 | Methods of sampling iron ores Manual method of increment sampling |
| ISO 648:2008 | Laboratory glassware — Single-volume pipettes |
| ISO 5725:1986 | Precision of test methods Determination of repeatability and reproducibility for a standard test method by inter-laboratory tests |
| 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 |
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.