ISO 11257:2022 PDF
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Iron ores for shaft direct-reduction feedstocks — Determination of the low-temperature reduction-disintegration index and degree of metallization
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.
| Edition | 2022 |
|---|---|
| Published Date | 2022 |
| Published By | International Standardization Organisation |
| Page Count | 9 |
