ASTM D2798-11a

Standard Test Method for Microscopical Determination of the Vitrinite Reflectance of Coal (Includes all amendments And changes 11/13/2019).

Automatically translated name:

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

STANDARD published on 1.6.2011

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The information about the standard:

Designation standards: ASTM D2798-11a
Note: WITHDRAWN
Publication date standards: 1.6.2011
SKU: NS-21514
The number of pages: 5
Approximate weight : 15 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM

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Chemical elements

Annotation of standard text ASTM D2798-11a :

Keywords:

coal, maceral, microscopy, rank, reflectance, vitrinite, Anthracite, Bituminous coal, Lignite, Maceral, Mean maximum reflectance, Microscopic examination--coal, Photometry, Rank, Reflectance and reflectivity--coal, Vitrinite, ICS Number Code 71.060.10 (Chemical elements)

Additional information

Significance and 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.

1. Scope

< ^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.

2. Referenced Documents

D388-23	Standard Classification of Coals by Rank
D121-15(2024)	Standard Terminology of Coal and Coke
D2797-07	Standard Practice for Preparing Coal Samples for Microscopical Analysis by Reflected Light