ASTM Standard
D5263 Test Method for Determining the Relative Degree of Oxidation in Bituminous Coal by Alkali Extraction

ASTM D121-09a Standard Terminology of Coal and Coke. 2014.

Look at other dictionaries:

  • weathered coal — n coal that has been exposed to climatic conditions (precipitation, sunlight, wind, temperature variations, etc.) and sometimes ground water, such that its properties are altered compared to those in coal from the same seam that has not be so… …   Coke&Coal Terminology

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