ASTM D2797/D2797M-11a
Standard Practice for Preparing Coal Samples for Microscopical Analysis by Reflected Light
- Standard No.
- ASTM D2797/D2797M-11a
- Release Date
- 2011
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- Replace By
- ASTM D2797/D2797M-11a(2019)
- 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 D2798) and for microscopical determination of the volume percent of physical components of coal (Test Method D2799).
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.
ASTM D2797/D2797M-11a Referenced Document
- ASTM D2013 Standard Method of Preparing Coal Samples for Analysis
- ASTM D2234/D2234M Standard Practice for Collection of a Gross Sample of Coal
- ASTM D2798 Standard Test Method for Microscopical Determination of the Reflectance of Vitrinite in a Polished Specimen of Coal
- ASTM D2799 Standard Test Method for Microscopical Determination of Volume Percent of Physical Components of Coal
- ASTM D4596 Standard Practice for Collection of Channel Samples of Coal in a Mine
- ASTM E11 Standard Specification for Wire Cloth and Sieves for Testing Purposes
ASTM D2797/D2797M-11a 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
