ASTM D2797-07
Standard Practice for Preparing Coal Samples for Microscopical Analysis by Reflected Light

Standard No.

ASTM D2797-07

Release Date

2007

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D2797/D2797M-09

Latest

ASTM D2797/D2797M-21a

Scope

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.

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 D 2798) and for microscopical determination of the volume percent of physical components of coal (Test Method D 2799).

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 The values stated in SI units shall be considered as standard; and inch-pound units shall be considered as approximate equivalents.

This standard does not purport to address the safety concerns associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

ASTM D2797-07 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