Abstract 

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.


General information

  • Status :  Withdrawn
    Publication date : 1994-01
  • Edition : 1
  • :
    ISO/TC 102/SC 3
    Physical testing
  • 73.060.10
    Iron ores

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