ASTM D2798-21
Standard Test Method for Microscopical Determination of the Vitrinite Reflectance of Coal

Standard No.
ASTM D2798-21
Release Date
2021
Published By
American Society for Testing and Materials (ASTM)
Latest
ASTM D2798-21
Scope
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 anthracite. This test method can be used to det

ASTM D2798-21 Referenced Document

  • ASTM D121 Standard Terminology of Coal and Coke
  • ASTM D2797/D2797M Standard Practice for Preparing Coal Samples for Microscopical Analysis by Reflected Light
  • ASTM D388 Standard Classification of Coals by Rank

ASTM D2798-21 history

  • 2021 ASTM D2798-21 Standard Test Method for Microscopical Determination of the Vitrinite Reflectance of Coal
  • 2020 ASTM D2798-20 Standard Test Method for Microscopical Determination of the Vitrinite Reflectance of Coal
  • 2019 ASTM D2798-11a(2019) Standard Test Method for Microscopical Determination of the Vitrinite Reflectance of Coal
  • 2011 ASTM D2798-11a Standard Test Method for Microscopical Determination of the Vitrinite Reflectance of Coal
  • 2011 ASTM D2798-11 Standard Test Method for Microscopical Determination of the Vitrinite Reflectance of Coal
  • 2009 ASTM D2798-09a Standard Test Method for Microscopical Determination of the Vitrinite Reflectance of Coal
  • 2009 ASTM D2798-09 Standard Test Method for Microscopical Determination of the Vitrinite Reflectance of Coal
  • 2006 ASTM D2798-06 Standard Test Method for Microscopical Determination of the Vitrinite Reflectance of Coal
  • 2005 ASTM D2798-05 Standard Test Method for Microscopical Determination of the Vitrinite Reflectance of Coal
  • 1999 ASTM D2798-99(2004) Standard Test Method for Microscopical Determination of the Reflectance of Vitrinite in a Polished Specimen of Coal
  • 1999 ASTM D2798-99 Standard Test Method for Microscopical Determination of the Reflectance of Vitrinite in a Polished Specimen of Coal
Standard Test Method for  Microscopical Determination of the Vitrinite Reflectance of Coal



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