Logo

ASTM D2798-11a

Historical Revision

Standard Test Method for Microscopical Determination of the Vitrinite Reflectance of Coal

$83.00

$83.00

$149.40

$0.00

$0.00

$0.00



Sub Total (1 Item(s))

$ 0.00

Estimated Shipping

$ 0.00

Total (Pre-Tax)

$ 0.00


Stay effortlessly up-to-date with the latest standard revisions. When new versions are released, they're automatically charged and delivered to you, ensuring seamless compliance.

...

< ^SCOPE:

1.1 This test method covers the microscopical determination of both the mean maximum and mean random reflectances measured in oil of polished surfaces of vitrinite and other macerals present in coals ranging in rank from lignite to anthracite. This test method can be used to determine the reflectance of other macerals.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3 This standard does not purport to address all of the safety concerns, if any, 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.

The mean maximum reflectance of the vitrinite component in coal as determined by this test method is often used as an indicator of rank as presented in Classification D388, independent of petrographic composition, and in the characterization of coal as feedstock for carbonization, gasification, liquefaction, and combustion processes.

This test method is for use in scientific and industrial research.

SDO ASTM: ASTM International
Document Number D2798
Publication Date June 1, 2011
Language en - English
Page Count 5
Revision Level 11a
Supercedes
Committee D05.28
Publish Date Document Id Type View
May 15, 2021 D2798-21 Revision
Feb. 1, 2020 D2798-20 Revision
June 1, 2011 D2798-11A Revision
April 15, 2011 D2798-11 Revision
Sept. 1, 2009 D2798-09A Revision
April 1, 2009 D2798-09 Revision
Sept. 1, 2006 D2798-06 Revision
May 1, 2005 D2798-05 Revision
April 10, 1999 D2798-99 Revision
Nov. 1, 2019 D2798-11AR19 Reaffirmation
Oct. 1, 2004 D2798-99R04 Reaffirmation