Standard Practice for Preparing Coal Samples for Microscopical Analysis by Reflected Light

Importancia y uso:

4.1 Briquets of granular bituminous coals and anthracite prepared in accordance with the laboratory procedures of this practice will have flat, scratch-free surfaces suitable for examination with a microscope using reflected light illumination. The polished surfaces of briquettes prepared by this practice will contain particles representative of the original gross sample.

4.2 Samples prepared by this practice are used for microscopical determination of the reflectance of the organic components in a polished specimen of coal (Test Method D2798) and for microscopical determination of the volume percent of physical components of coal (Test Method D2799).

Subcomité:

D05.28

Referida por:

D2798-21

Volúmen:

05.06

Número ICS:

73.040 (Coals)

Palabras clave:

binding material; coal; grinding; maceral; mold; polishing; rank; reflectance; sieve;