Resumen
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.
Informaciones generales
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Estado: RetiradaFecha de publicación: 1994-01Etapa: Retirada de la Norma Internacional [95.99]
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Edición: 1Número de páginas: 13
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Comité Técnico :ISO/TC 102/SC 3ICS :73.060.10
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Ciclo de vida
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Ahora
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Revisada por
RetiradaISO 4698:2007