Iron ores for shaft direct-reduction feedstocks — Determination of the low-temperature reduction-disintegration index and degree of metallization
NORMA vydaná dňa 22.3.2022
Označenie normy: ISO 11257:2022-ed.4.0
Dátum vydania normy: 22.3.2022
Počet strán: 9
Približná hmotnosť: 27 g (0.06 libier)
Krajina: Medzinárodná technická norma
Kategória: Technické normy ISO
Description / 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.