标准摘要
[中文适用范围]： 本国际标准规定了一种方法，提供一种相对测量方法，用于评估在类似于竖井直接还原工艺中普遍存在的条件下进行还原时，铁矿石中除氧的程度和难易程度。 它规定了还原性、最终还原度和金属化度的测定。 本国际标准适用于块矿和热粘球团矿。 [外文原描述]： ISO 11258:2015 specifies a method to provide a relative measure for evaluating the extent to and ease to which oxygen can be removed from iron ores, when reduced under conditions resembling those prevailing in shaft direct-reduction processes. It specifies the determination of the reducibility, final degree of reduction, and degree of metallization. ISO 11258:2015 is applicable to lump ores and hot-bonded pellets.
英文名称Iron ores for shaft direct-reduction feedstocks — Determination of the reducibility index, final degree of reduction and degree of metallization