ASTM D388-19a
Standard Classification of Coals by Rank
- Standard No.
- ASTM D388-19a
- Release Date
- 2019
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- Replace By
- ASTM D388-23
- Latest
- ASTM D388-23
- Scope
- 1.1 This standard covers the classification of coals by rank, that is, according to their degree of metamorphism, or progressive alteration, in the natural series from lignite to anthracite. 1.2 This classification is applicable to coals that are composed mainly of vitrinite. NOTE 1—Coals rich in inertinite or liptinite (exinite), or both, cannot be properly classified because, in those macerals, the properties that determine rank (calorific value, volatile matter, and agglomerating character) differ greatly from those of vitrinite in the same coal. Often, such coals can be recognized by megascopic examination. In North America, these coals are mostly nonbanded varieties that contain only a small proportion of vitrain and consist mainly of attrital materials. The degree of metamorphism of nonbanded and other vitrinite-poor coals can be estimated by determining the classification properties of isolated or concentrated vitrinite fractions, or by determining the reflectance of the vitrinite (see Test Method D2798 and Appendix X1 of this classification). However, in the use of these vitrinite-poor coals, some properties normally associated with rank, such as rheology, combustibility, hardness, and grindability (as well as the rank determining properties) may differ substantially from those of vitrinite-rich coals of the same degree of metamorphism. 1.3 The accuracy of the classification of impure coal may be impaired by the effect of large amounts of mineral matter on the determination of volatile matter and calorific value, and on their calculation to the mineral-matter-free basis. 1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only. 1.4.1 Exception—The values stated in British thermal units per pound (Btu/lb) are to be regarded as the standard. The SI equivalents of Btu/lb are provided for information only and are not considered standard. 1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
ASTM D388-19a Referenced Document
- ASTM D121 Standard Terminology of Coal and Coke*， 2024-03-01 Update
- ASTM D1412/D1412M Standard Test Method for Equilibrium Moisture of Coal at 96 to 97 Percent Relative Humidity and 30 °C*， 2020-09-15 Update
- ASTM D2013/D2013M Standard Practice for Preparing Coal Samples for Analysis*， 2021-10-01 Update
- ASTM D2234/D2234M Standard Practice for Collection of a Gross Sample of Coal*， 2020-04-01 Update
- ASTM D2798 Standard Test Method for Microscopical Determination of the Reflectance of Vitrinite in a Polished Specimen of Coal
- ASTM D3172 Standard Practice for Proximate Analysis of Coal and Coke
- ASTM D3173/D3173M Standard Test Method for Moisture in the Analysis Sample of Coal and Coke
- ASTM D3174 Standard Test Method for Ash in the Analysis Sample of Coal and Coke from Coal
- ASTM D3175 Standard Test Method for Volatile Matter in the Analysis Sample of Coal and Coke
- ASTM D3302/D3302M Standard Test Method for Total Moisture in Coal*， 2022-12-15 Update
- ASTM D4239 Standard Test Methods for Sulfur in the Analysis Sample of Coal and Coke Using High Temperature Tube Furnace Combustion Methods
- ASTM D4596 Standard Practice for Collection of Channel Samples of Coal in a Mine
- ASTM D5016 Standard Test Method for Sulfur in Ash from Coal, Coke, and Residues from Coal Combustion Using High-Temperature Tube Furnace Combustion Method with Infrared Absorption
- ASTM D5192 Standard Practice for Collection of Coal Samples from Core
- ASTM D5865 Standard Test Method for Gross Calorific Value of Coal and Coke
- ASTM D720/D720M Standard Test Method for Free-Swelling Index of Coal*， 2023-11-01 Update
ASTM D388-19a history
- 2023 ASTM D388-23 Standard Classification of Coals by Rank
- 2019 ASTM D388-19a Standard Classification of Coals by Rank
- 2019 ASTM D388-19 Standard Classification of Coals by Rank
- 2018 ASTM D388-18a Standard Classification of Coals by Rank
- 2018 ASTM D388-18 Standard Classification of Coals by Rank
- 2017 ASTM D388-17a Standard Classification of Coals by Rank
- 2017 ASTM D388-17 Standard Classification of Coals by Rank
- 2015 ASTM D388-15 Standard Classification of Coals by Rank
- 2012 ASTM D388-12 Standard Classification of Coals by Rank
- 2005 ASTM D388-05 Standard Classification of Coals by Rank
- 1999 ASTM D388-99(2004)e1 Standard Classification of Coals by Rank
- 1999 ASTM D388-99e1 Standard Classification of Coals by Rank
- 1999 ASTM D388-99 Standard Classification of Coals by Rank
- 1998 ASTM D388-98a Standard Classification of Coals by Rank
- 1998 ASTM D388-98 Standard Classification of Coals by Rank
- 1995 ASTM D388-95 Standard Classification of Coals by Rank
- 1992 ASTM D388-92 Standard Classification of Coals by Rank
- 1991 ASTM D388-91a Standard Classification of Coals by Rank
- 1991 ASTM D388-91 Standard Classification of Coals by Rank
- 1990 ASTM D388-90 Standard Classification of Coals by Rank
- 1988 ASTM D388-88 Standard Classification of Coals by Rank
- 1977 ASTM D388-77 Standard Specification for Classification Of Coals By Rank
