1.1 This test method covers the microscopical determination of both the mean maximum and mean random reflectances measured in oil of polished surfaces of vitrinite and other macerals present in coals ranging in rank from lignite to anthraci
ASTM
Standard Test Method for Microscopical Determination of the Vitrinite Reflectance of Coal
STD-80447
2009
2009-09-01
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