Codes & Standards - Purchase
ISO 8264:1989
Hard coal -- Determination of the swelling properties using a dilatometer
SKU: iso_015378_106743
Published by ISO
Publication Year 1989
1 Edition
9 pages
Product 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.