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Most, if not all, coals are tested prior to being used. Some markets require specific quality characteristics for the process in which the coal is used, and environmental regulations also require knowledge of a coal’s quality. Some products also require analysis of physical characteristics of coals for handling or processing. Standard tests are prescribed by the American Society for Testing and Materials. ASTM sets standardized procedures for sample preparation and analysis. Certified laboratories for coal analysis in North America follow ASTM procedures, and must regularly check equipment and results by using standard samples and interlaboratory comparative testing. Common coal analyses include:




Last Modified on 2023-01-05
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