BS 7067:1990
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Guide to determination and presentation of float and sink characteristics of raw coal and of products from coal preparation plants
Hardcopy , PDF
05-11-2019
English
29-06-1990
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Foreword
Committees responsible
Guide
1. Scope
2. Definitions
3. Sampling
4. Comprehensive plant efficiency tests
5. Size analysis
6. Pilot testing
7. Float and sink testing
8. Presentation of results
Appendices
A. Procedure for a centrifugal float and sink test
B. Typical procedure for the treatment and testing
of a sample of a raw coal
C. Practical hints on float and sink testing
Tables
1. Recommended minimum mass of raw coal for a given
size fraction
2. Example of results of size analysis
3. Typical physical properties of organic liquids
used in float and sink testing
4. Suitable solids for aqueous suspensions
5. Typical presentation of float and sink data and
calculation for washability curves
Figures
1. Sectional elevation of a 2 L measuring vessel for
the determination of relative density of solids in
aqueous suspension
2. Suitable cylindrical float and sink apparatus for
separation of coarse size fractions
3. Float and sink bench
4. Suitable float and sink apparatus for separation
of 4 mm to 0.5 mm size fractions
5. Suitable float and sink apparatus for separation
of size fractions finer than 0.5 mm
6. Examples of washability curves
7. Example of M-curve
8. Typical scheme for the treatment and testing of a
sample of raw coal
Guidance on sampling; plant efficiency tests; size analysis; pilot testing; medium, apparatus and procedure for float and sink testing; and presentation of results.
| Committee |
W/-
|
| DevelopmentNote |
Supersedes 85/55079 DC. (09/2005) Reviewed and confirmed by BSI, October 2012. (09/2012)
|
| DocumentType |
Standard
|
| Pages |
22
|
| PublisherName |
British Standards Institution
|
| Status |
Withdrawn
|
| Standards | Relationship |
| ISO 7936:1992 | Similar to |
| BS 1016-17:1979 | Methods for analysis and testing of coal and coke Size analysis of coal |
| BS 3620:1963 | Methods for the expression and presentation of results of coal cleaning tests |
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