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  • BS ISO 11258:2015

    Current The latest, up-to-date edition.

    Iron ores for shaft direct-reduction feedstocks. Determination of the reducibility index, final degree of reduction and degree of metallization

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  30-09-2015

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    Introduction
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Principle
    5 Sampling, sample preparation, and preparation
       of test portions
    6 Apparatus
    7 Test conditions
    8 Procedure
    9 Expression of results
    10 Test report
    11 Verification
    Annex A (normative) - Flowsheet of the procedure for
            the acceptance of test results
    Annex B (informative) - Derivation of formula for
            reducibility
    Annex C (informative) - Derivation of formula for
            degree of metallization from R90
    Bibliography

    Abstract - (Show below) - (Hide below)

    Defines a method to provide a relative measure for evaluating the extent to and ease to which oxygen can be removed from iron ores, when reduced under conditions resembling those prevailing in shaft direct-reduction processes.

    General Product Information - (Show below) - (Hide below)

    Committee W/-
    Development Note Supersedes 05/30132742 DC. (12/2007) Supersedes 13/30265136 DC. (09/2015)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes

    Standards Referencing This Book - (Show below) - (Hide below)

    ISO 11323:2010 Iron ore and direct reduced iron Vocabulary
    ISO 3082:2017 Iron ores — Sampling and sample preparation procedures
    ISO 5416:2006 Direct reduced iron Determination of metallic iron Bromine-methanol titrimetric method
    ISO 9686:2006 Direct reduced iron Determination of carbon and/or sulfur High-frequency combustion method with infrared measurement
    ISO 2597-2:2015 Iron ores Determination of total iron content Part 2: Titrimetric methods after titanium(III) chloride reduction
    ISO 2597-1:2006 Iron ores Determination of total iron content Part 1: Titrimetric method after tin(II) chloride reduction
    ISO 9035:1989 Iron ores — Determination of acid-soluble iron(II) content — Titrimetric method
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