ASTM D121-15

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D121 − 09a D121 − 15
Standard Terminology of
1
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
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.
2. Referenced Documents
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2.1 ASTM Standards:
D388 Classification of Coals by Rank
D720 Test Method for Free-Swelling Index of Coal
D1412 Test Method for Equilibrium Moisture of Coal at 96 to 97 Percent Relative Humidity and 30°C
D1857 Test Method for Fusibility of Coal and Coke Ash
D2013 Practice for Preparing Coal Samples for Analysis
D2234/D2234M Practice for Collection of a Gross Sample of Coal
D2361D2639 Test Method for Chlorine in CoalPlastic Properties of Coal by the Constant-Torque Gieseler Plastometer
(Withdrawn 2008)
3
D2795 Test Methods for Analysis of Coal and Coke Ash (Withdrawn 2001)
D2798 Test Method for Microscopical Determination of the Vitrinite Reflectance of Coal
D2961 Test Method for Single-Stage Total Moisture Less than 15 % in Coal Reduced to 2.36-mm (No. 8 Sieve) Topsize
D3172 Practice for Proximate Analysis of Coal and Coke
D3173 Test Method for Moisture in the Analysis Sample of Coal and Coke
D3174 Test Method for Ash in the Analysis Sample of Coal and Coke from Coal
D3175 Test Method for Volatile Matter in the Analysis Sample of Coal and Coke
D3176 Practice for Ultimate Analysis of Coal and Coke
D3180 Practice for Calculating Coal and Coke Analyses from As-Determined to Different Bases
D3302 Test Method for Total Moisture in Coal
D4371 Test Method for Determining the Washability Characteristics of Coal
D4596 Practice for Collection of Channel Samples of Coal in a Mine
D4749 Test Method for Performing the Sieve Analysis of Coal and Designating Coal Size
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D4916 Practice for Mechanical Auger Sampling (Withdrawn 2008)
D5061 Test Method for Microscopical Determination of the Textural Components of Metallurgical Coke
D5114 Test Method for Laboratory Froth Flotation of Coal in a Mechanical Cell
D5192 Practice for Collection of Coal Samples from Core
1
This terminology is under the jurisdiction of ASTM Committee D05 on Coal and Coke and is the direct responsibility of Subcommittee D05.24 on Quality
AssuranceStatistics.
Current edition approved Oct. 1, 2009Sept. 1, 2015. Published October 2009September 2015. Originally approved in 1921. Last previous edition approved in 2009 as
D121 – 09.D121 – 09A. DOI: 10.1520/D0121-09A.10.1520/D0121-15.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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D121 − 15
D5263 Test Method for Determining the Relative Degree of Oxidation in Bituminous Coal by Alkali Extraction
D5515 Test Method for Determination of the Swelling Properties of Bituminous Coal Using a Dilatometer
D5865 Test Method for Gross Calorific Value of Coal and Coke
D6316 Test Method for Determination of Total, Combustible and Carbonate Carbon in Solid Residues from Coal and Coke
D7430 Practice for Mechanical Sampling of Coal
D7582 Test Methods for Proximate Analysis of Coal and Coke by Macro Thermogravimetric Analysis
3. Terminology
air-dried moisturemoisture——this term has been used inappropriately to refer to both residual moisture and air-dry loss.
Because of the potential for confusion, this term shall not be used.
air drying, n—a process of partial drying of coal to bring its moisture near to equilibrium with the atmosphere in the room in which
further reduction a
...

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D121 − 15
Standard Terminology of
1
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 D3176 Practice for Ultimate Analysis of Coal and Coke
D3180 Practice for Calculating Coal and Coke Analyses
1.1 This terminology defines the technical terms used in
from As-Determined to Different Bases
standards that are the responsibility of Committee D05 on Coal
D3302 Test Method for Total Moisture in Coal
and Coke. The terms are used in:
D4371 Test Method for Determining the Washability Char-
1.1.1 The sampling of coal and coke under conditions
acteristics of Coal
required for most commercial and technical purposes related to
D4749 Test Method for Performing the Sieve Analysis of
coal and coke.
Coal and Designating Coal Size
1.1.2 Bias and related statistical testing,
D5061 Test Method for Microscopical Determination of the
1.1.3 The description of coal, both visually in the field and
Textural Components of Metallurgical Coke
microscopically in the laboratory,
D5114 Test Method for Laboratory Froth Flotation of Coal
1.1.4 Chemical and physical analyses of coal and coke,
in a Mechanical Cell
1.1.5 Classification of coal, and
D5192 Practice for Collection of Coal Samples from Core
1.1.6 Certain other related practices and guides applicable
D5263 Test Method for Determining the Relative Degree of
to the coal and coke industries.
Oxidation in Bituminous Coal by Alkali Extraction
2. Referenced Documents
D5515 Test Method for Determination of the Swelling
2
Properties of Bituminous Coal Using a Dilatometer
2.1 ASTM Standards:
D5865 Test Method for Gross Calorific Value of Coal and
D388 Classification of Coals by Rank
Coke
D1412 Test Method for Equilibrium Moisture of Coal at 96
D6316 Test Method for Determination of Total, Combustible
to 97 Percent Relative Humidity and 30°C
and Carbonate Carbon in Solid Residues from Coal and
D1857 Test Method for Fusibility of Coal and Coke Ash
Coke
D2013 Practice for Preparing Coal Samples for Analysis
D7430 Practice for Mechanical Sampling of Coal
D2234/D2234M Practice for Collection of a Gross Sample
D7582 Test Methods for Proximate Analysis of Coal and
of Coal
Coke by Macro Thermogravimetric Analysis
D2639 Test Method for Plastic Properties of Coal by the
Constant-Torque Gieseler Plastometer
D2798 Test Method for Microscopical Determination of the 3. Terminology
Vitrinite Reflectance of Coal
air-dried moisture—this term has been used inappropriately
D3172 Practice for Proximate Analysis of Coal and Coke
to refer to both residual moisture and air-dry loss. Because of
D3173 Test Method for Moisture in the Analysis Sample of
the potential for confusion, this term shall not be used.
Coal and Coke
D3174 Test Method for Ash in the Analysis Sample of Coal
air drying, n—a process of partial drying of coal to bring its
and Coke from Coal
moisture near to equilibrium with the atmosphere in the
D3175 Test Method for Volatile Matter in the Analysis
room in which further reduction and division of the sample
Sample of Coal and Coke
will take place.
air-dry loss, n— in coal, the loss in mass, expressed as a
1
This terminology is under the jurisdiction of ASTM Committee D05 on Coal
percentage, resulting from each air-drying stage or the sum
and Coke and is the direct responsibility of Subcommittee D05.24 on Statistics.
of all sequential air-drying stages in which the results from
Current edition approved Sept. 1, 2015. Published September 2015. Originally
approved in 1921. Last previous edition approved in 2009 as D121 – 09A. DOI:
each stage are adjusted to the as-received basis.
10.1520/D0121-15.
DISCUSSION—Air-dry loss is neither a standard state nor a character-
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
istic property of a coal. Air drying only removes water that can
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
evaporate at or near ambient laboratory conditions, leaving in the coal
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. some fraction of the inherent moisture that is more tightly bound in the
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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---------------------- Page: 1 ----------------------
D121 − 15
pores (residual moisture). Different laboratory environments or differ- (semifusinite) coal macerals of metallurgical bituminous coals. During
ent drying temperatures or both will result in significant differen
...