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ISO 8264:1989

Hard coal -- Determination of the swelling properties using a dilatometer
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ISO 8264:1989

Hard coal -- Determination of the swelling properties using a dilatometer

PUBLISH DATE 1989
ISO 8264:1989

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.

SDO ISO: International Organization for Standardization
Document Number ISO 8264
Publication Date Nov. 15, 1989
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO TC 27
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