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About This Item

 

Full Description

This document specifies a method to provide a relative measure for evaluating the degree of size degradation and degree of metallization of iron ores, when reduced under conditions resembling those prevailing in shaft direct-reduction processes.

This document is applicable to lump ores and hot-bonded pellets.

 

Document History

  1. ISO 11257:2022

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    Iron ores for shaft direct-reduction feedstocks - Determination of the low-temperature reduction-disintegration index and degree of metallization

    • Most Recent
  2. ISO 11257:2015


    Iron ores for shaft direct-reduction feedstocks - Determination of the low-temperature reduction-disintegration index and degree of metallization

    • Historical Version
  3. ISO 11257:2007


    Iron ores for shaft direct-reduction feedstocks - Determination of the low-temperature reduction-disintegration index and degree of metallization

    • Historical Version
  4. ISO 11257:1998


    Iron ores -- Determination of disintegration and metallization of feedstock for direct reduction by gas reforming processes

    • Historical Version