ASTM D5373-14
(Test Method)Standard Test Methods for Determination of Carbon, Hydrogen and Nitrogen in Analysis Samples of Coal and Carbon in Analysis Samples of Coal and Coke
Standard Test Methods for Determination of Carbon, Hydrogen and Nitrogen in Analysis Samples of Coal and Carbon in Analysis Samples of Coal and Coke
SIGNIFICANCE AND USE
4.1 Carbon and hydrogen values can be used to determine the amount of oxygen (air) required in combustion processes and for calculation of the efficiency of combustion processes.
4.2 Carbon and hydrogen determinations can be used in calculations including material balance, reactivity and yields of products relevant to coal conversion processes such as gasification and liquefaction.
4.3 Carbon and nitrogen values can be used in material balance calculations employed for emission accounting purposes.Note 2—The bulk composition of coal changes at a rate that varies from coal to coal during storage. As a result using coal for calibration can yield incorrect estimates of carbon, and hydrogen content in particular.
SCOPE
1.1 Test Method A covers the determination of carbon in the range of 54.9 % to 84.7 %, hydrogen in the range of 3.25 % to 5.10 %, and nitrogen in the range of 0.57 % to 1.80 % in the analysis samples (7.1) of coal.
1.1.1 Test Method B covers the determination of carbon in analysis samples of coal in the range of 58.0 % to 84.2 %, and carbon in analysis samples of coke in the range of 86.3 % to 95.2 %.Note 1—The coals included in the interlaboratory study employed to derive the precision statement for this standard cover ASTM rank lignite A to low volatile bituminous. Additional information concerning the composition of these coals appears in Annex A5. The cokes used in the interlaboratory study employed to derive the precision statement for coke included an equal number of met cokes and pet cokes.
1.2 All percentages are percent mass fractions unless otherwise noted.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 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 and health practices and determine the applicability of regulatory limitations prior to use.
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Designation: D5373 − 14
StandardTest Methods for
Determination of Carbon, Hydrogen and Nitrogen in
Analysis Samples of Coal and Carbon in Analysis Samples
1
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 D3173 Test Method for Moisture in the Analysis Sample of
Coal and Coke
1.1 Test MethodAcovers the determination of carbon in the
D3176 Practice for Ultimate Analysis of Coal and Coke
range of 54.9 % to 84.7 %, hydrogen in the range of 3.25 % to
D3180 Practice for Calculating Coal and Coke Analyses
5.10 %, and nitrogen in the range of 0.57 % to 1.80 % in the
from As-Determined to Different Bases
analysis samples (7.1) of coal.
D5865 Test Method for Gross Calorific Value of Coal and
1.1.1 Test Method B covers the determination of carbon in
Coke
analysis samples of coal in the range of 58.0 % to 84.2 %, and
D7582 Test Methods for Proximate Analysis of Coal and
carbon in analysis samples of coke in the range of 86.3 % to
Coke by Macro Thermogravimetric Analysis
95.2 %.
NOTE 1—The coals included in the interlaboratory study employed to
2.2 ISO Standard:
derive the precision statement for this standard cover ASTM rank lignite
ISO 5725-6 Accuracy (Trueness and Precision) of Measure-
A to low volatile bituminous. Additional information concerning the
ment Methods and Results Part 6: Use in Practice of
composition of these coals appears in Annex A5. The cokes used in the
3
Accuracy Values
interlaboratory study employed to derive the precision statement for coke
included an equal number of met cokes and pet cokes.
3. Summary of Test Methods
1.2 All percentages are percent mass fractions unless other-
wise noted. 3.1 In MethodA, carbon, hydrogen and nitrogen in coal are
determined concurrently in a single instrumental procedure
1.3 The values stated in SI units are to be regarded as
using a furnace operating at temperatures in the range of 900
standard. No other units of measurement are included in this
°C to 1050°C. The quantitative conversion of the carbon,
standard.
hydrogen and nitrogen into their corresponding gases (CO ,
2
1.4 This standard does not purport to address all of the
H O, and NO ) occurs during combustion of the sample at an
2 x
safety concerns, if any, associated with its use. It is the
elevated temperature in an atmosphere of oxygen. Combustion
responsibility of the user of this standard to establish appro-
products which can interfere with the subsequent gas analysis
priate safety and health practices and determine the applica-
are removed. Oxides of nitrogen (NO ) are reduced to N
x 2
bility of regulatory limitations prior to use.
before detection.The carbon dioxide, water vapor and elemen-
tal nitrogen in the gas stream are determined by appropriate
2. Referenced Documents
instrumental detection procedures.
2
2.1 ASTM Standards:
3.2 In Method B, carbon in coal and coke is determined by
D346/D346M Practice for Collection and Preparation of
combusting the sample in a 1350°C furnace. The HOinthe
2
Coke Samples for Laboratory Analysis
combustion gases is removed and CO is determined by
2
D2013 Practice for Preparing Coal Samples for Analysis
infrared absorption.
4. Significance and Use
1
ThesetestmethodsareunderthejurisdictionofASTMCommitteeD05onCoal
and Coke and are the direct responsibility of Subcommittee D05.21 on Methods of
4.1 Carbon and hydrogen values can be used to determine
Analysis.
the amount of oxygen (air) required in combustion processes
Current edition approved March 1, 2014. Published March 2014. Originally
and for calculation of the efficiency of combustion processes.
approved in 1993. Last previous edition approved in 2013 as D5373 – 13. DOI:
10.1520/D5373-13.
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
3
Standards volume information, refer to the standard’s Document Summary page on Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
the ASTM website. 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
1
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D5373 − 14
4
4.2 Carbon and hydrogen determinations can be used in where such specifications are available. Other grades may be
calculationsincludingmaterialbalance,reactivityandyieldsof used, provided it is first ascertained that the reagent is of
sufficiently high purity to permit its use witho
...
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: D5373 − 13 D5373 − 14
Standard Test Methods for
Determination of Carbon, Hydrogen and Nitrogen in
Analysis Samples of Coal and Carbon in Analysis Samples
1
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
1.1 Test Method A covers the determination of carbon in the range of 54.9 % to 84.7 %, hydrogen in the range of 3.25 % to
5.10 %, and nitrogen in the range of 0.57 % to 1.80 % in the analysis samples (7.1) of coal.
1.1.1 Test Method B covers the determination of carbon in analysis samples of coal in the range of 58.0 % to 84.2 %, and carbon
in analysis samples of coke in the range of 86.3 % to 95.2 %.
NOTE 1—The coals included in the interlaboratory study employed to derive the precision statement for this standard cover ASTM rank lignite A to
low volatile bituminous. Additional information concerning the composition of these coals appears in Annex A5. The cokes used in the interlaboratory
study employed to derive the precision statement for coke included an equal number of met cokes and pet cokes.
1.2 All percentages are percent mass fractions unless otherwise noted.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 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 and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
D346/D346M Practice for Collection and Preparation of Coke Samples for Laboratory Analysis
D2013 Practice for Preparing Coal Samples for Analysis
D3173 Test Method for Moisture 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
D5865 Test Method for Gross Calorific Value of Coal and Coke
D7582 Test Methods for Proximate Analysis of Coal and Coke by Macro Thermogravimetric Analysis
2.2 ISO Standard:
ISO 5725-6 Accuracy (Trueness and Precision) of Measurement Methods and Results Part 6: Use in Practice of Accuracy
3
Values
3. Summary of Test Methods
3.1 In Method A, carbon, hydrogen and nitrogen in coal are determined concurrently in a single instrumental procedure using
a furnace operating at temperatures in the range of 900 °C to 1050°C. The quantitative conversion of the carbon, hydrogen and
nitrogen into their corresponding gases (CO , H O, and NO ) occurs during combustion of the sample at an elevated temperature
2 2 x
in an atmosphere of oxygen. Combustion products which can interfere with the subsequent gas analysis are removed. Oxides of
nitrogen (NO ) are reduced to N before detection. The carbon dioxide, water vapor and elemental nitrogen in the gas stream are
x 2
determined by appropriate instrumental detection procedures.
1
These test methods are under the jurisdiction of ASTM Committee D05 on Coal and Coke and are the direct responsibility of Subcommittee D05.21 on Methods of
Analysis.
Current edition approved Oct. 15, 2013March 1, 2014. Published November 2013March 2014. Originally approved in 1993. Last previous edition approved in 20082013
as D5373 – 08.D5373 – 13. DOI: 10.1520/D5373-13.
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.
3
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D5373 − 14
3.2 In Method B, carbon in coal and coke is determined by combusting the sample in a 1350°C furnace. The H O in the
2
combustion gases is removed and CO is determined by infrared absorption.
2
4. Significance and Use
4.1 Carbon and hydrogen values can be used to determine the amount of oxygen (air) required in combustion processes and
...
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