ASTM D5373-93(2002)

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: 14-Mar-1993
• ICS: 75.160.10 - Solid fuels
• Technical Committee: D05 - Coal and Coke
• Drafting Committee: D05.21 - Methods of Analysis

Relations

• Replaces: ASTM D5373-93(1997) - Standard Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Laboratory Samples of Coal and Coke
• Effective Date: 15-Mar-1993
• Replaced By: ASTM D5373-02 - Standard Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Laboratory Samples of Coal and Coke
• Effective Date: 10-Sep-2002
• Referred By: ASTM D3176-15 - Standard Practice for Ultimate Analysis of Coal and Coke
• Effective Date: 15-Mar-1993
• Referred By: ASTM E2779-10(2017) - Standard Test Method for Determining Particulate Matter Emissions from Pellet Heaters
• Effective Date: 15-Mar-1993
• 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: 15-Mar-1993

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:D5373–93 (Reapproved 2002)
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 D5373; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
2
1. Scope Samples for Laboratory Analysis
2
D2013 Practice for Preparing Coal Samples for Analysis
1.1 Thesetestmethodscovertheinstrumentaldetermination
D3173 TestMethodforMoistureintheAnalysisSampleof
ofcarbon,hydrogen,andnitrogeninlaboratorysamplesofcoal
2
Coal and Coke
and coke prepared in accordance with Test Methods D2013
D3174 TestMethodforAshintheAnalysisSampleofCoal
and D346.
2
and Coke from Coal
1.2 Within the limitations outlined below, these test meth-
2
D3176 Practice for Ultimate Analysis of Coal and Coke
ods are applicable to either the air-dry or moisture-free
D3180 Practice for Calculating Coal and Coke Analyses
laboratory sample, or both.
2
from As-Determined to Different Bases
1.2.1 For instrumental systems in which the moisture and
D4621 Guide for Quality Management in an Organization
waters of hydration in the sample are liberated with (and only
2
That Samples or Tests Coal and Coke
with) the oxidation products upon combustion, the analyses
D5142 Test Methods for the Proximate Analysis of the
can be performed on a test specimen of the air-dry sample
Analysis Sample of Coal and Coke by Instrumental
(Note 1). Concentrations determined on this air-dried basis
2
Procedures
representthetotalcarbon(includingthatpresentascarbonate),
total hydrogen (including that present as water), and total
3. Summary of Test Methods
nitrogen.
3.1 Carbon, hydrogen, and nitrogen are determined concur-
NOTE 1—These systems are also satisfactory for determining the
rently in a single instrumental procedure. In some systems, the
subject materials in the moisture-free sample.
procedureconsistsofsimplyweighingatestspecimen,placing
1.2.2 For systems in which the moisture and hydrates are
the test portion into the instrument, and initiating the (subse-
otherwise liberated, the analysis shall be performed on the
quently automatic) analytical process. In other systems, the
moisture-free sample. Values obtained on this basis represent
analyticalprocessmaybecontrolledmanuallytosomedegree.
the total carbon, organic hydrogen, and total nitrogen.
3.2 The actual process can vary substantially from instru-
1.3 These test methods can be used to provide for the
ment to instrument because a variety of means can be used to
requirements specified in Practice D3176 for the ultimate
effect the primary requirements of the test methods. These test
analysis.
methods provide for the following: (1) conversion of the
1.4 The values stated in SI units shall be regarded as the
subjectmaterialsinanoxygenstreamintheirentiretytocarbon
standard.
dioxide, water vapor, nitrogen oxides, and ash, respectively;
1.5 This standard does not purport to address all of the
and (2) subsequent, quantitative determination of the gases in
safety concerns, if any, associated with its use. It is the
an appropriate reference gas stream.
responsibility of the user of this standard to establish appro-
3.2.1 The conversion of the subject materials to their
priate safety and health practices and determine the applica-
corresponding gases occurs largely during combustion of the
bility of regulatory limitations prior to use. Specific precau-
sampleatanelevatedtemperatureinanatmosphereofpurified
tionary statements are given in 8.3.1.
oxygen. The gases that are produced include the following:
3.2.1.1 Carbon dioxide from the oxidation of organic and
2. Referenced Documents
elementalcarbonandthedecompositionofcarbonateminerals;
2.1 ASTM Standards:
3.2.1.2 Hydrogen halides from organic halides (and organic
D346 Test Method for Collection and Preparation of Coke
hydrogen, as required);
3.2.1.3 Water vapor from the oxidation of (the remaining)
organic hydrogen and the liberation of moisture and waters of
1
ThesetestmethodsareunderthejurisdictionofASTMCommitteeD05onCoal
hydration;
and Coke and are the direct responsibility of Subcommittee D05.21 on Methods of
Analysis.
Current edition approved March 15, 1993. Published May 1993. Originally
2
published as D5373–93. Last previous edition D5373–93 (1997). Annual Book of ASTM Standards, Vol 05.06.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
--```,,````,```,,`,,,,``,`,`,,,,-`-`,,`,,`,`,,`---
D5373
3.2.1.4 Nitrogen and nitrogen
...