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

ISO-8264 - 1ST EDITION - CURRENT


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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.

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73.040 (Coals Including lignites Coal products, see 75.160.10)

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Document Number

ISO 8264:1989

Revision Level

1ST EDITION

Status

Current

Publication Date

Nov. 15, 1989

Committee Number

ISO TC 27