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ISO 8264:1989

Hard coal — Determination of the swelling properties using a dilatometer

Standard Details

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.

General Information

Status : Published
Standard Type: Main
Document No: ISO 8264:1989
Document Year: 1989
Pages: 9
Edition: 1

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ISO 8264:1989
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