ISO 4698:2022
ISO 4698:2022
Iron ore pellets for blast furnace feedstocks - Determination of the free-swelling indexstandard by International Organization for Standardization, 10/31/2022
standard by International Organization for Standardization, 10/31/2022
This document specifies a method to provide a relative measure for evaluating the increase in volume of iron ore pellets, when reduced in an unconstrained bed under conditions resembling those prevailing in the reduction zone of a blast furnace. It specifies the determination of the free-swelling index.
This document is applicable to hot-bonded pellets.