anthracitic class

n
a class of rank consisting of semianthracite, anthracite, and meta-anthracite.

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

Look at other dictionaries:

  • rank — n of coal, a classification designation that indicates the degree of metamorphism, or progressive alteration, from lignite to anthracite. • anthracite anthracitic class bituminous class high volatile A bituminous coal high volatile B bituminous… …   Coke&Coal Terminology

  • anthracite — n the rank of coal, within the anthracitic class of Classification D388, such that on the dry and mineral matterfree basis, the volatile matter content of the coal is greater than 2 % but equal to or less than 8 % (or the fixed carbon content is… …   Coke&Coal Terminology

  • semianthracite — n the rank of coal, within the anthracitic class of Classification D388, such that, on the dry and mineral matter free basis, the volatile matter content of the coal is greater than 8 % but equal to or less than 14 % (or the fixed carbon content… …   Coke&Coal Terminology

  • Coal — Sedimentary Rock Anthracite coal Composition Primary carbon Secondary hydrogen, sulfur …   Wikipedia

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