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ASTM International - ASTM D2797/D2797M-11a

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

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Organization: ASTM International
Publication Date: 1 June 2011
Status: inactive
Page Count: 5
ICS Code (Coals): 73.040
significance And Use:

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... View More

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 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

1.3 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.

Document History

May 15, 2021
Standard Practice for Preparing Coal Samples for Microscopical Analysis by Reflected Light
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....
August 1, 2020
Standard Practice for Preparing Coal Samples for Microscopical Analysis by Reflected Light
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....
February 1, 2020
Standard Practice for Preparing Coal Samples for Microscopical Analysis by Reflected Light
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....
November 1, 2019
Standard Practice for Preparing Coal Samples for Microscopical Analysis by Reflected Light
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....
ASTM D2797/D2797M-11a
June 1, 2011
Standard Practice for Preparing Coal Samples for Microscopical Analysis by Reflected Light
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....
April 15, 2011
Standard Practice for Preparing Coal Samples for Microscopical Analysis by Reflected Light
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....
October 1, 2007
Standard Practice for Preparing Coal Samples for Microscopical Analysis by Reflected Light
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....
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