Historical
ASTM D1857/D1857M-17a
Standard Test Method for Fusibility of Coal and Coke Ash
This test method covers the observation of the temperatures at which triangular pyramids (cones) prepared from coal and coke ash attain and pass through certain defined stages of fusing and flow when heated at a specified rate in controlled, mildly reducing, and where desired, oxidizing atmospheres.
ASTM International [astm]