ISO 4698:1994

Iron ore pellets — Determination of relative free-swelling index

Publication date:   Jan 27, 1994

95.99 Withdrawal of Standard   Oct 30, 2007

General information

95.99 Withdrawal of Standard   Oct 30, 2007

ISO

ISO/TC 102/SC 3 Physical testing

International Standard

73.060.10   Iron ores

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Scope

The principle of the method specified is determination of swelling of fired iron ore pellets of a specified size range under isothermal reduction, determination of the volume of pellets before and after reduction at a temperature of 900 °C, using a reducing gas consisting of carbon monoxide and nitrogen, calculation of the free-swelling index, expressed as a percentage, using the difference between the two volumes.

Life cycle

NOW

WITHDRAWN
ISO 4698:1994
95.99 Withdrawal of Standard
Oct 30, 2007

REVISED BY

PUBLISHED
ISO 4698:2007