Standard
[CURRENT]
ISO 4695:2021-10
Iron ores for blast furnace feedstocks - Determination of the reducibility by the rate of reduction index
German title
Eisenerze für Hochofenbeschickung - Bestimmung der Reduzierbarkeit durch den Reduktionsgeschwindigkeitsindex
Publication date
2021-10
Original language
English
Pages
12
Publication date
2021-10
Original language
English
Pages
12
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Content
Content (en)
Foreword
Introduction
Hauptteil
Show subsection Close subsection Scope
Normative references
Terms and definitions
Principle
Sampling, sample preparation and preparation of test portions
Show subsection Close subsection Sampling and sample preparation
Preparation of test portions
Apparatus
Test conditions
Show subsection Close subsection General
Reducing gas
Show subsection Close subsection Composition
Purity
Flow rate
Heating and cooling gas
Temperature of the test portion
Procedure
Show subsection Close subsection Number of determinations for the test
Chemical analysis
Reduction
Expression of results
Show subsection Close subsection Calculation of the reducibility index
Repeatability and acceptance of test results
Test report
Verification
Flowsheet of the procedure for the acceptance of test results (normative)
Derivation of equation for reducibility (informative)
Cooperation at DIN
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