ASTM D121-15(2024)
(Terminology)Standard Terminology of Coal and Coke
Standard Terminology of Coal and Coke
SCOPE
1.1 This terminology defines the technical terms used in standards that are the responsibility of Committee D05 on Coal and Coke. The terms are used in:
1.1.1 The sampling of coal and coke under conditions required for most commercial and technical purposes related to coal and coke.
1.1.2 Bias and related statistical testing,
1.1.3 The description of coal, both visually in the field and microscopically in the laboratory,
1.1.4 Chemical and physical analyses of coal and coke,
1.1.5 Classification of coal, and
1.1.6 Certain other related practices and guides applicable to the coal and coke industries.
1.2 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.
General Information
Relations
Standards Content (Sample)
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.
Designation: D121 − 15 (Reapproved 2024)
Standard Terminology of
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Coal and Coke
This standard is issued under the fixed designation D121; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope D3172 Practice for Proximate Analysis of Coal and Coke
D3173 Test Method for Moisture in the Analysis Sample of
1.1 This terminology defines the technical terms used in
Coal and Coke
standards that are the responsibility of Committee D05 on Coal
D3174 Test Method for Ash in the Analysis Sample of Coal
and Coke. The terms are used in:
and Coke from Coal
1.1.1 The sampling of coal and coke under conditions
D3175 Test Method for Volatile Matter in the Analysis
required for most commercial and technical purposes related to
Sample of Coal and Coke
coal and coke.
D3176 Practice for Ultimate Analysis of Coal and Coke
1.1.2 Bias and related statistical testing,
D3180 Practice for Calculating Coal and Coke Analyses
1.1.3 The description of coal, both visually in the field and
from As-Determined to Different Bases
microscopically in the laboratory,
D3302 Test Method for Total Moisture in Coal
1.1.4 Chemical and physical analyses of coal and coke,
D4371 Test Method for Determining the Washability Char-
1.1.5 Classification of coal, and
acteristics of Coal
1.1.6 Certain other related practices and guides applicable
to the coal and coke industries. D4749 Test Method for Performing the Sieve Analysis of
Coal and Designating Coal Size
1.2 This international standard was developed in accor-
D5061 Test Method for Microscopical Determination of the
dance with internationally recognized principles on standard-
Textural Components of Metallurgical Coke
ization established in the Decision on Principles for the
D5114 Test Method for Laboratory Froth Flotation of Coal
Development of International Standards, Guides and Recom-
in a Mechanical Cell
mendations issued by the World Trade Organization Technical
D5192 Practice for Collection of Coal Samples from Core
Barriers to Trade (TBT) Committee.
D5263 Test Method for Determining the Relative Degree of
2. Referenced Documents
Oxidation in Bituminous Coal by Alkali Extraction
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D5515 Test Method for Determination of the Swelling
2.1 ASTM Standards:
Properties of Bituminous Coal Using a Dilatometer
D388 Classification of Coals by Rank
D5865 Test Method for Gross Calorific Value of Coal and
D1412 Test Method for Equilibrium Moisture of Coal at 96
to 97 Percent Relative Humidity and 30 °C Coke
D6316 Test Method for Determination of Total, Combustible
D1857 Test Method for Fusibility of Coal and Coke Ash
D2013 Practice for Preparing Coal Samples for Analysis and Carbonate Carbon in Solid Residues from Coal and
D2234/D2234M Practice for Collection of a Gross Sample Coke
of Coal D7430 Practice for Mechanical Sampling of Coal
D2639 Test Method for Plastic Properties of Coal by the D7582 Test Methods for Proximate Analysis of Coal and
Constant-Torque Gieseler Plastometer
Coke by Macro Thermogravimetric Analysis
D2798 Test Method for Microscopical Determination of the
Vitrinite Reflectance of Coal
3. Terminology
air-dried moisture—this term has been used inappropriately
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This terminology is under the jurisdiction of ASTM Committee D05 on Coal
to refer to both residual moisture and air-dry loss. Because of
and Coke and is the direct responsibility of Subcommittee D05.24 on Statistics.
the potential for confusion, this term shall not be used.
Current edition approved March 1, 2024. Published March 2024. Originally
approved in 1921. Last previous edition approved in 2015 as D121 – 15. DOI:
10.1520/D0121-15R24.
air drying, n—a process of partial drying of coal to bring its
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
moisture near to equilibrium with the atmosphere in the
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
room in which further reduction and division of the sample
Standardsvolume information, refer to the standard’s Document Summary page on
the ASTM website. will take place.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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D121 − 15 (2024)
air-dry loss, n— in coal, the loss in mass, expressed as a bed moisture—synonym for inherent moisture.
percentage, resulting from each air-drying stage or the sum
beehive coke—See beehive coke under coke.
of all sequen
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