Explanation of washability curves for the interpretation of float-and-sink data on coal. Washington D.C. : United States Dept. of the Interior Bureau of Mines 1938 OCoLC 634792926
adaptation of the wide range of scrub abrasion and washability tests that are in use. First the base apparatus has to be selected from two models. The Scrub Abrasion and Washability Tester Basic Art. Nr. AB6010 without pumps for dry tests and the Scrub Abrasion and Washability Tester Art. Nr. AB6000 with pumps for dry and wet tests.
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In washability tests coal samples are separated into float and sink fractions in liquids of increasing density. If a coal sample will be sent to a preparation plant that uses a fixed density for separating coal from rock and minerals then a single float-sink test may be done on a sample at the fluid density used in the plant.
The TQC Scrub Abrasion and Washability Tester allows for the most flexible adaptation of the wide range of scrub abrasion and washability tests that are in use. First the base apparatus has to be selected from two models. The TQC Scrub Abrasion and Washability Tester - Basic Art. Nr. AB6010 without pumps for dry
The recorder provides greater sensitivity and a high response record of force resistance throughout the machine cycle and for repeat cycles. In order to provide a wide range of different surfaces and the loading on these surfaces Gardco has produced an auxiliary weight for the abrasion boat and a modified sponge box to carry a much heavier weight.
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An explanation of washability curves for the interpretation of float-and-sink data on coal / by G.D. Coe.
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