ISO 4698:2022
Iron ore pellets for blast furnace feedstocks — Determination of the free-swelling index

Standard No.

ISO 4698:2022

Release Date

2022

Published By

International Organization for Standardization (ISO)

Latest

ISO 4698:2022

Scope

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.

ISO 4698:2022 Referenced Document

• ISO 11323 Iron ore and direct reduced iron - Vocabulary
• ISO 3082 Iron ores - Sampling and sample preparation procedures

ISO 4698:2022 history

• 2022 ISO 4698:2022 Iron ore pellets for blast furnace feedstocks — Determination of the free-swelling index
• 2007 ISO 4698:2007 Iron ore pellets for blast furnace feedstocks - Determination of the free-swelling index
• 1994 ISO 4698:1994 Iron ore pellets; determination of relative free-swelling index