1.1 This test method of drop shatter test2 covers the determination of the relative size stability and its complement, the friability, of sized coal. It affords a means of indicating the ability of coal to withstand breakage when subjected to handling at the mine and during transit to the consumer. The test method is serviceable for ascertaining the similarity of coals in respect to size stability and friability rather than for determining values within narrow limits in order to emphasize their dissimilarity. This test method is considered applicable for testing a selected single size of different coals, for testing different single sizes of the same coal, and for mixed sizes of the same or different coals.
Note 1: By single sizes, it is meant those with fixed upper and lower sieve opening limits, selected from those designated in 4.2; and by mixed sizes, it is meant either “slack” or a mixture of two or more single sizes.
Product Details
- Published:
- 11/01/2019
- Number of Pages:
- 4
- File Size:
- 1 file , 180 KB
