ASTM D2797/D2797M-21
Standard Practice for Preparing Coal Samples for Microscopical Analysis by Reflected Light

Standard No.

ASTM D2797/D2797M-21

Release Date

2021

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D2797/D2797M-21a

Latest

ASTM D2797/D2797M-21a

Scope

1.1?This practice covers laboratory procedures for the preparation of granular samples of bituminous coal and anthracite samples for examination with a microscope using reflected light illumination. It does not apply to the preparation of oriented blocks of coal. 1.2?Units—The

ASTM D2797/D2797M-21 history

• 2021 ASTM D2797/D2797M-21a Standard Practice for Preparing Coal Samples for Microscopical Analysis by Reflected Light
• 2021 ASTM D2797/D2797M-21 Standard Practice for Preparing Coal Samples for Microscopical Analysis by Reflected Light
• 2020 ASTM D2797/D2797M-20a Standard Practice for Preparing Coal Samples for Microscopical Analysis by Reflected Light
• 2020 ASTM D2797/D2797M-20 Standard Practice for Preparing Coal Samples for Microscopical Analysis by Reflected Light
• 2019 ASTM D2797/D2797M-11a(2019) Standard Practice for Preparing Coal Samples for Microscopical Analysis by Reflected Light
• 2011 ASTM D2797/D2797M-11a Standard Practice for Preparing Coal Samples for Microscopical Analysis by Reflected Light
• 2011 ASTM D2797/D2797M-11 Standard Practice for Preparing Coal Samples for Microscopical Analysis by Reflected Light
• 2009 ASTM D2797/D2797M-09 Standard Practice for Preparing Coal Samples for Microscopical Analysis by Reflected Light
• 2007 ASTM D2797-07 Standard Practice for Preparing Coal Samples for Microscopical Analysis by Reflected Light
• 2004 ASTM D2797-04 Standard Practice for Preparing Coal Samples for Microscopical Analysis by Reflected Light
• 1985 ASTM D2797-85(1999) Standard Practice for Preparing Coal Samples for Microscopical Analysis by Reflected Light