ASTM D5373-21

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: D5373 − 21
Standard Test Methods for
Determination of Carbon, Hydrogen and Nitrogen in
Analysis Samples of Coal and Carbon in Analysis Samples
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of Coal and Coke
This standard is issued under the fixed designation D5373; 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 2. Referenced Documents
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2.1 ASTM Standards:
1.1 Test MethodAcovers the determination of carbon in the
range of 54.9 % to 84.7 %, hydrogen in the range of 3.26 % to D121 Terminology of Coal and Coke
D346/D346M Practice for Collection and Preparation of
5.08 %, and nitrogen in the range of 0.57 % to 1.76 % in
analysis samples (8.1) of coal and of carbon in analysis Coke Samples for Laboratory Analysis
D2013 Practice for Preparing Coal Samples for Analysis
samples of coke in the range of 86.6 % to 97.9 %.
D3173 Test Method for Moisture in the Analysis Sample of
1.1.1 Test Method B covers the determination of carbon in
Coal and Coke
analysis samples of coal in the range of 57.7 % to 84.0 %, and
D3176 Practice for Ultimate Analysis of Coal and Coke
carbon in analysis samples of coke in the range of 86.3 % to
D3180 Practice for Calculating Coal and Coke Analyses
95.4 %.
NOTE 1—The coals included in the interlaboratory studies employed to from As-Determined to Different Bases
derive the precision statements for this standard coverASTM rank lignite
D5865 Test Method for Gross Calorific Value of Coal and
A to low volatile bituminous. Additional information concerning the
Coke
compositionofthesecoalsappearsinAnnexA4andAnnexA5.Thecokes
D7582 Test Methods for Proximate Analysis of Coal and
used in the interlaboratory study employed to derive the precision
Coke by Macro Thermogravimetric Analysis
statement for coke for Method A included five each metallurgical (met)
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cokes and seven each petroleum (pet) cokes, and Method B included an
2.2 ISO Standard:
equal number (five each) of met cokes and pet cokes.
ISO 5725-6 Accuracy (Trueness and Precision) of Measure-
1.2 All percentages are percent mass fractions unless other-
ment Methods and Results Part 6: Use in Practice of
wise noted.
Accuracy Values
1.3 Units—The values stated in SI units are to be regarded
3. Terminology
as standard. No other units of measurement are included in this
standard.
3.1 For definitions of terms used in this standard, refer to
Terminology D121.
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4. Summary of Test Methods
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
4.1 In MethodA, carbon, hydrogen, and nitrogen in coal or
mine the applicability of regulatory limitations prior to use.
carbon in coke are determined in a single instrumental proce-
1.5 This international standard was developed in accor-
dure using a furnace operating at temperatures in the range of
dance with internationally recognized principles on standard-
900 °C to 1050 °C for carbon, hydrogen, and nitrogen in coal
ization established in the Decision on Principles for the
or 950 °C to 1150 °C for carbon in coke. The quantitative
Development of International Standards, Guides and Recom-
conversion of the carbon, hydrogen, and nitrogen into their
mendations issued by the World Trade Organization Technical
corresponding gases (CO,H O, and NO ) occurs during
2 2 x
Barriers to Trade (TBT) Committee.
combustion of the sample at an elevated temperature in an
1 2
ThesetestmethodsareunderthejurisdictionofASTMCommitteeD05onCoal For referenced ASTM standards, visit the ASTM website, www.astm.org, or
and Coke and are the direct responsibility of Subcommittee D05.21 on Methods of contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Analysis. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved April 1, 2021. Published April 2021. Originally the ASTM website.
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approved in 1993. Last previous edition approved in 2016 as D5373 – 16. DOI: Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
10.1520/D5373-21. 4th Floor, New York, NY 10036, http://www.ansi.org.
Copyright ©ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA19428-2959. United States
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D5373 − 21
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