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Drum tests
Used for examining the strength properties of coke. Sized coke is placed in a drum which has lifters on the inside. As the drum is rotated for a set time or number of revolutions, the pieces of coke are lifted and then dropped to the bottom of the drum. The coke is then sized again, and the various drum indices are obtained from the amount of oversize and undersize material. Commonly used drum tests are ASTM, Micum, IRSID and JIS,
