Résumé
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.
Informations générales
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État actuel: AnnuléeDate de publication: 1994-01Stade: Annulation de la Norme internationale [95.99]
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Edition: 1Nombre de pages: 13
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Comité technique :ISO/TC 102/SC 3ICS :73.060.10
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Cycle de vie
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Actuellement
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Révisée par
AnnuléeISO 4698:2007