ASTM D5373-02

Standard Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Laboratory Samples of Coal and Coke

SCOPE
1.1 These test methods cover the instrumental determination of carbon, hydrogen, and nitrogen in laboratory samples of coal and coke prepared in accordance with Test Methods D 2013 and D 346.
1.2 Within the limitations outlined below, these test methods are applicable to either the air-dry or moisture-free laboratory sample, or both.
1.2.1 For instrumental systems in which the moisture and waters of hydration in the sample are liberated with (and only with) the oxidation products upon combustion, the analyses can be performed on a test specimen of the air-dry sample (Note 1). Concentrations determined on this air-dried basis represent the total carbon (including that present as carbonate), total hydrogen (including that present as water), and total nitrogen.
Note 1—These systems are also satisfactory for determining the subject materials in the moisture-free sample.
1.2.2 For systems in which the moisture and hydrates are otherwise liberated, the analysis shall be performed on the moisture-free sample. Values obtained on this basis represent the total carbon, organic hydrogen, and total nitrogen.
1.3 These test methods can be used to provide for the requirements specified in Practice D 3176 for the ultimate analysis.
1.4 The values stated in SI units shall be regarded as the standard.
1.5 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. Specific precautionary statements are given in 8.3.1.

General Information

• Status: Historical
• Publication Date: 09-Sep-2002
• ICS: 75.160.10 - Solid fuels
• Technical Committee: D05 - Coal and Coke
• Drafting Committee: D05.21 - Methods of Analysis

Relations

• Replaces: ASTM D5373-93(2002) - Standard Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Laboratory Samples of Coal and Coke
• Effective Date: 10-Sep-2002
• Replaced By: ASTM D5373-02(2007) - Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Laboratory Samples of Coal and Coke
• Effective Date: 01-May-2007
• Referred By: ASTM D3176-15 - Standard Practice for Ultimate Analysis of Coal and Coke
• Effective Date: 10-Sep-2002
• Referred By: ASTM E2779-10(2017) - Standard Test Method for Determining Particulate Matter Emissions from Pellet Heaters
• Effective Date: 10-Sep-2002
• Referred By: ASTM D6316-17 - Standard Test Method for Determination of Total, Combustible and Carbonate Carbon in Solid Residues from Coal and Coke
• Effective Date: 10-Sep-2002

Standards Content (Sample)

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:D5373–02
Standard Test Methods for
Instrumental Determination of Carbon, Hydrogen, and
1
Nitrogen in Laboratory Samples of Coal and Coke
This standard is issued under the fixed designation D 5373; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope D 346 Test Method for Collection and Preparation of Coke
2
Samples for Laboratory Analysis
1.1 Thesetestmethodscovertheinstrumentaldetermination
2
D 2013 Practice for Preparing Coal Samples for Analysis
ofcarbon,hydrogen,andnitrogeninlaboratorysamplesofcoal
D 3173 Test Method for Moisture in theAnalysis Sample of
and coke prepared in accordance with Test Methods D 2013
2
Coal and Coke
and D 346.
D 3174 TestMethodforAshintheAnalysisSampleofCoal
1.2 Within the limitations outlined below, these test meth-
2
and Coke from Coal
ods are applicable to either the air-dry or moisture-free
2
D 3176 Practice for Ultimate Analysis of Coal and Coke
laboratory sample, or both.
D 3180 Practice for Calculating Coal and Coke Analyses
1.2.1 For instrumental systems in which the moisture and
2
from As-Determined to Different Bases
waters of hydration in the sample are liberated with (and only
D 4621 Guide for Quality Management in an Organization
with) the oxidation products upon combustion, the analyses
2
That Samples or Tests Coal and Coke
can be performed on a test specimen of the air-dry sample
D 5142 Test Methods for the Proximate Analysis of the
(Note 1). Concentrations determined on this air-dried basis
Analysis Sample of Coal and Coke by Instrumental
represent the total carbon (including that present as carbonate),
2
Procedures
total hydrogen (including that present as water), and total
nitrogen.
3. Summary of Test Methods
NOTE 1—These systems are also satisfactory for determining the
3.1 Carbon, hydrogen, and nitrogen are determined concur-
subject materials in the moisture-free sample.
rently in a single instrumental procedure. In some systems, the
1.2.2 For systems in which the moisture and hydrates are
procedure consists of simply weighing a test specimen, placing
otherwise liberated, the analysis shall be performed on the
the test portion into the instrument, and initiating the (subse-
moisture-free sample. Values obtained on this basis represent
quently automatic) analytical process. In other systems, the
the total carbon, organic hydrogen, and total nitrogen.
analytical process may be controlled manually to some degree.
1.3 These test methods can be used to provide for the
3.2 The actual process can vary substantially from instru-
requirements specified in Practice D 3176 for the ultimate
ment to instrument because a variety of means can be used to
analysis.
effect the primary requirements of the test methods. These test
1.4 The values stated in SI units shall be regarded as the
methods provide for the following: (1) conversion of the
standard.
subjectmaterialsinanoxygenstreamintheirentiretytocarbon
1.5 This standard does not purport to address all of the
dioxide, water vapor, nitrogen oxides, and ash, respectively;
safety concerns, if any, associated with its use. It is the
and (2) subsequent, quantitative determination of the gases in
responsibility of the user of this standard to establish appro-
an appropriate reference gas stream.
priate safety and health practices and determine the applica-
3.2.1 The conversion of the subject materials to their
bility of regulatory limitations prior to use. Specific precau-
corresponding gases occurs largely during combustion of the
tionary statements are given in 8.3.1.
sample at an elevated temperature in an atmosphere of purified
oxygen. The gases that are produced include the following:
2. Referenced Documents
3.2.1.1 Carbon dioxide from the oxidation of organic and
2.1 ASTM Standards:
elementalcarbonandthedecompositionofcarbonateminerals;
3.2.1.2 Hydrogen halides from organic halides (and organic
hydrogen, as required);
1
ThesetestmethodsareunderthejurisdictionofASTMCommitteeD05onCoal
and Coke and are the direct responsibility of Subcommittee D05.21 on Methods of
Analysis.
Current edition approved September 10, 2002. Published October 2002. Origi-
2
nally published as D 5373–93. Last previous edition D 5373–93 (2002). Annual Book of ASTM Standards, Vol 05.06.
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D5373–02
3.2.1.3 Water vapor from the oxidation of (the remaining) 3.4 Or to the following: the instrument response is propor-
organic hydrogen and the liberation of mois
...