Borrador del Comité
ISO/CD 8264
Hard coal — Determination of the swelling properties using a dilatometer
Reference number
ISO/CD 8264
Edition 2
Borrador del Comité
ISO/CD 8264
93978
El comité está revisando un borrador.
Reemplazará ISO 8264:1989

Resumen

A test piece, in the form of a pencil, prepared from powdered coal is heated at a constant rate in a steel retort positioned in a furnace, the temperature monitoring system having been previously calibrated using two reference metals of known melting points. The change in level of a piton resting upon the test piece is observed continuously, and record is produced which is characteristic of the swelling properties of the coal.

Informaciones generales

  •  : En desarrollo
    : CD aprobado para su registro como DIS [30.99]
  •  : 2
  • ISO/TC 27/SC 5
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