Standard Practice for Polishing and Etching Coal Samples for Microscopical Analysis by Reflected Light

Importancia y uso:

5.1 Components observable in surfaces of coal samples prepared in accordance with the laboratory procedures of this practice will have differential relief that will aid in their maceral identification by visual classification and enables identification of plant parts or tissues that formed the coal.

5.2 Samples prepared by this practice can be used for microscopical determination of the volume percent of physical components of coal in accordance with Test Method D2799.

5.3 Samples prepared by this practice can be used for the microscopical identification of botanical components by taphonomic rank. Samples for this purpose should be limited to telovitrinite and semifusinite rich coals of bright lithotype to maximize feedback from etching.

Subcomité:

D05.28

Volúmen:

05.06

Número ICS:

73.040 (Coals)

Palabras clave:

coal microscopical analysis; etching; polishing ;