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ASTM D 388 : 2019 : REV A

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard Classification of Coals by Rank

Available format(s)

Hardcopy , PDF

Superseded date

24-06-2023

Language(s)

English

Published date

04-05-2021

1.1This 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.

1.2This 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.

1.3The 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.

1.4The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.

1.4.1Exception—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.

1.5This 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.

1.6This 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.

Committee
D 05
DocumentType
Standard
Pages
8
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

ASTM D 7708 : 2023 Standard Test Method for Microscopical Determination of the Reflectance of Vitrinite Dispersed in Sedimentary Rocks
ASTM D 5192/D5192M : 2022 Standard Practice for Collection of Coal Samples from Core
ASTM D 2799 : 2023 Standard Test Method for Microscopical Determination of the Maceral Composition of Coal
ASTM D 3180 : 2015 Standard Practice for Calculating Coal and Coke Analyses from As-Determined to Different Bases
ASTM D 3174 : 2012 : R2018 : EDT 1 Standard Test Method for Ash in the Analysis Sample of Coal and Coke from Coal
ASTM D 7708 : 2014 Standard Test Method for Microscopical Determination of the Reflectance of Vitrinite Dispersed in Sedimentary Rocks
ASTM D 1412/D1412M : 2020 Standard Test Method for Equilibrium Moisture of Coal at 96 to 97 Percent Relative Humidity and 30 °C
ASTM D 4749/D4749M : 1987 : R2019 : EDT 1 Standard Test Method for Performing the Sieve Analysis of Coal and Designating Coal Size

ASTM D 3172 : 2013 : R2021 : EDT 1 Standard Practice for Proximate Analysis of Coal and Coke
ASTM D 3172 : 2013 Standard Practice for Proximate Analysis of Coal and Coke
ASTM D 2013/D2013M : 2021 Standard Practice for Preparing Coal Samples for Analysis
ASTM D 4239 : 2000 Standard Test Methods for Sulfur in the Analysis Sample of Coal and Coke Using High Temperature Tube Furnace Combustion Methods
ASTM D 2798 : 2020 Standard Test Method for Microscopical Determination of the Vitrinite Reflectance of Coal
ASTM D 5865 : 2000 Standard Test Method for Gross Calorific Value of Coal and Coke
ASTM D 4596 : 2022 Standard Practice for Collection of Channel Samples of Coal in a Mine
ASTM D 3302/D3302M : 2022 : REV A Standard Test Method for Total Moisture in Coal
ASTM D 2798 : 2011 : REV A : R2019 Standard Test Method for Microscopical Determination of the Vitrinite Reflectance of Coal
ASTM D 2234/D2234M : 2009 Standard Practice for Collection of a Gross Sample of Coal
ASTM D 5865 : 1999 : REV A Standard Test Method for Gross Calorific Value of Coal and Coke
ASTM D 3175 : 2001 Standard Test Method for Volatile Matter in the Analysis Sample of Coal and Coke
ASTM D 4596 : 2009 : R2015 Standard Practice for Collection of Channel Samples of Coal in a Mine
ASTM D 720/D720M : 2015 : EDT 1 Standard Test Method for Free-Swelling Index of Coal
ASTM D 5192 : 2009 : R2015 Standard Practice for Collection of Coal Samples from Core
ASTM D 3302/D3302M : 2022 Standard Test Method for Total Moisture in Coal
ASTM D 2013/D2013M : 2020 Standard Practice for Preparing Coal Samples for Analysis
ASTM D 5865 : 2001 : REV A Standard Test Method for Gross Calorific Value of Coal and Coke
ASTM D 121 : 2000 : EDT 1 Standard Terminology of Coal and Coke
ASTM D 2798 : 2021 Standard Test Method for Microscopical Determination of the Vitrinite Reflectance of Coal
ASTM D 2798 : 2009 Standard Test Method for Microscopical Determination of the Vitrinite Reflectance of Coal
ASTM D 3174 : 2002 Standard Test Method for Ash in the Analysis Sample of Coal and Coke from Coal
ASTM D 3175 : 2018 Standard Test Method for Volatile Matter in the Analysis Sample of Coal and Coke
ASTM D 121 : 2001 Standard Terminology of Coal and Coke
ASTM D 3175 : 1989 : REV A : R1997 Standard Test Method for Volatile Matter in the Analysis Sample of Coal and Coke
ASTM D 5865 : 2001 Standard Test Method for Gross Calorific Value of Coal and Coke
ASTM D 3302/D3302M : 2019 Standard Test Method for Total Moisture in Coal
ASTM D 720/D720M : 2022 Standard Test Method for Free-Swelling Index of Coal
ASTM D 3172 : 1989 : R1997 Standard Practice for Proximate Analysis of Coal and Coke
ASTM D 3175 : 2020 Standard Test Method for Volatile Matter in the Analysis Sample of Coal and Coke

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