ISO 8264:1989 (R2025)
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ISO 8264:1989 (R2025)

Hard coal — Determination of the swelling properties using a dilatometer

Summary

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.

Notes

90.60 : Clôture de l'examen

Technical characteristics

Publisher International Organization for Standardization (ISO)
Publication Date 11/23/1989
Confirmation Date 09/30/2025
Edition 1
Page Count 9
EAN ---
ISBN ---
Weight (in grams) ---
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