Reference number
ISO 11257:2007
© ISO 2025
ISO 11257:2007
Iron ores for shaft direct-reduction feedstocks — Determination of the low-temperature reduction-disintegration index and degree of metallization
Edition 2
2007-10
Withdrawn
Withdrawn (Edition 2, 2007)

Abstract

ISO 11257:2007 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.

ISO 11257:2007 is applicable to lump ores and hot-bonded pellets.

General information

  • Status
     : Withdrawn
    Publication date
     : 2007-10
    Stage
    : Withdrawal of International Standard [95.99]
  • Edition
     : 2
    Number of pages
     : 8
  • Technical Committee :
    ISO/TC 102/SC 3
    ICS :
    73.060.10 
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