ISO 11256:2015
Iron ore pellets for shaft direct-reduction feedstocks — Determination of the clustering index
ISO 11256:2015 specifies a method to provide a relative measure for evaluating the formation of clusters of iron ore pellets when reduced under conditions resembling those prevailing in shaft direct-reduction processes.
ISO 11256:2015 is applicable to hot-bonded pellets.
| Get this standard | Prices exclude GST | |
|---|---|---|
| PDF ( Single user document) |
$179.13 NZD
|
|
| HardCopy |
$214.78 NZD
|
|
| Networkable PDF |
Price varies
|
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Sampling, sample preparation, and preparation of test portions
5.1 Sampling and sample preparation
5.2 Preparation of test portion
6 Apparatus
7 Test conditions
7.1 General
7.2 Reducing gas
7.2.1 Composition
7.2.2 Purity
7.2.3 Flow rate
7.3 Heating and cooling gas
7.4 Temperature of the test portion
7.5 Loading of the test portion
8 Procedure
8.1 Number of determinations for the test
8.2 Chemical analysis
8.3 Reduction
8.4 Disaggregation
9 Expression of results
9.1 Calculation of the clustering index (CI)
9.2 Repeatability and acceptance of test results
10 Test report
11 Verification
Annex A (normative) Flowsheet of the procedure for the acceptance of test results
Annex B (informative) Example of a calculation of the clustering index
Previous versions
Keep me up-to-date
Register to receive notifications when updates are made to this standard.
Related Information
Similar Standards
-
BS 6200-3.19.3:1992
Sampling and analysis of iron, steel and other ferrous metals. Methods of analysis. Determination of molybdenum, Molybdenum oxide and high grade molybdenite ores: gravimetric method
-
BS 7020-11.2:1993
Analysis of iron ores. Methods for the determination of vanadium content, Flame atomic absorption spectrometric method
-
BS 7020-13:1988
Analysis of iron ores, Method for the determination of arsenic content. Spectrophotometric method
-
BS 7020-16:1993
Analysis of iron ores, Methods for the determination of nickel and/or chromium contents: flame atomic absorption spectrometric method
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Sampling, sample preparation, and preparation of test portions
5.1 Sampling and sample preparation
5.2 Preparation of test portion
6 Apparatus
7 Test conditions
7.1 General
7.2 Reducing gas
7.2.1 Composition
7.2.2 Purity
7.2.3 Flow rate
7.3 Heating and cooling gas
7.4 Temperature of the test portion
7.5 Loading of the test portion
8 Procedure
8.1 Number of determinations for the test
8.2 Chemical analysis
8.3 Reduction
8.4 Disaggregation
9 Expression of results
9.1 Calculation of the clustering index (CI)
9.2 Repeatability and acceptance of test results
10 Test report
11 Verification
Annex A (normative) Flowsheet of the procedure for the acceptance of test results
Annex B (informative) Example of a calculation of the clustering index