ISO 4695:2021 PDF

Scope: This document specifies a method to provide a relative measure for evaluating the extent to and ease with which oxygen can be removed from iron ores, when reduced under conditions resembling those prevailing in the reduction zone of a blast furnace. This document is applicable to lump ores, sinters and hot-bonded pellets.

ISO 4695:2021 Referenced Document

ISO 11323 Iron ore and direct reduced iron - Vocabulary
ISO 2597-1 Iron ores - Determination of total iron content - Part 1: Titrimetric method after tin(II) chloride reduction
ISO 2597-2 Iron ores — Determination of total iron content — Part 2: Titrimetric methods after titanium(III) chloride reduction
ISO 3082 Iron ores - Sampling and sample preparation procedures
ISO 9035 Iron ores; determination of acid-soluble iron(II) content; titrimetric method

2021 ISO 4695:2021 Iron ores for blast furnace feedstocks - Determination of the reducibility by the rate of reduction index
2015 ISO 4695:2015 Iron ores for blast furnace feedstocks - Determination of the reducibility by the rate of reduction index
2007 ISO 4695:2007 Iron ores for blast furnace feedstocks - Determination of the reducibility by the rate of reduction index
1995 ISO 4695:1995 Iron ores - Determination of reducibility
1984 ISO 4695:1984 Iron ores; Determination of reducibility