Reference number
ISO 11257:2022
© ISO 2024
International Standard
ISO 11257:2022
Iron ores for shaft direct-reduction feedstocks — Determination of the low-temperature reduction-disintegration index and degree of metallization
Edition 4
2022-03
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Published (Edition 4, 2022)

ISO 11257:2022

Language
Format
CHF 63
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Abstract

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.

General information

  • Status
     : Published
    Publication date
     : 2022-03
    Stage
    : International Standard published [60.60]
  • Edition
     : 4
    Number of pages
     : 9
  • Technical Committee :
    ISO/TC 102/SC 3
    ICS :
    73.060.10 
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Life cycle

Sustainable Development Goals

This standard contributes to the following Sustainable Development Goal

9
Industry, Innovation and Infrastructure

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