ASTM D5142-02a

Standard Test Methods for Proximate Analysis of the Analysis Sample of Coal and Coke by Instrumental Procedures

SCOPE
1.1 These instrumental test methods cover the determination of moisture, volatile matter, and ash, and the calculation of fixed carbon in the analysis of coal and coke samples prepared in accordance with Method D 2013 and Practice D 346. Results obtained through the use of the instrumental tests have been shown to differ from those obtained with Test Methods D 3173, D 3174, and D 3175 on some coals and cokes. Where a relative bias between the instrumental methods and Test Methods D 3173, D 3174, and D 3175 for proximate analysis of coal and coke are shown to exist, the instrumental results shall be corrected or the instrument calibrated using samples of known proximate analysis. Test Methods D 3173, D 3174, and D 3175 shall be considered the referee test methods. The instrumental test methods are not applicable to thermogravimetric analyzers using microgram size samples.
1.2 The moisture value determined is used for calculating other analytical results to a dry basis. When used in conjunction with the air dry loss moisture, as determined in accordance with Method D 2013, Test Method D 3302, or Practice D 346, the calculated total moisture can be used to convert dry basis analytical results to the as-received basis.
1.3 The result of the ash determinations can be applied in the ultimate analysis, Practice D 3176.
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.

General Information

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

Relations

• Replaces: ASTM D5142-02 - Standard Test Methods for Proximate Analysis of the Analysis Sample of Coal and Coke by Instrumental Procedures
• Effective Date: 10-Oct-2002
• Replaced By: ASTM D5142-02ae1 - Standard Test Methods for Proximate Analysis of the Analysis Sample of Coal and Coke by Instrumental Procedures
• Effective Date: 10-Oct-2002
• Referred By: ASTM D3175-20 - Standard Test Method for Volatile Matter in the Analysis Sample of Coal and Coke
• Effective Date: 10-Oct-2002
• Referred By: ASTM D6721-01(2015) - Standard Test Method for Determination of Chlorine in Coal by Oxidative Hydrolysis Microcoulometry
• Effective Date: 10-Oct-2002
• Referred By: ASTM D5016-16 - Standard Test Method for Total Sulfur in Coal and Coke Combustion Residues Using a High-Temperature Tube Furnace Combustion Method with Infrared Absorption
• Effective Date: 10-Oct-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:D5142–02a
Standard Test Methods for
Proximate Analysis of the Analysis Sample of Coal and
1
Coke by Instrumental Procedures
This standard is issued under the fixed designation D5142; 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.
1. Scope D1757 Test Method for Sulfate Sulfur in Ash from Coal
2
and Coke
1.1 Theseinstrumentaltestmethodscoverthedetermination
2
D2013 Practice for Preparing Coal Samples for Analysis
of moisture, volatile matter, and ash, and the calculation of
D3173 TestMethodforMoistureintheAnalysisSampleof
fixed carbon in the analysis of coal and coke samples prepared
2
Coal and Coke
in accordance with Method D2013 and Practice D346. Re-
D3174 TestMethodforAshintheAnalysisSampleofCoal
sults obtained through the use of the instrumental tests have
2
and Coke from Coal
been shown to differ from those obtained with Test Methods
D3175 Test Method for Volatile Matter in the Analysis
D3173, D3174, and D3175 on some coals and cokes. Where
2
Sample of Coal and Coke
a relative bias between the instrumental methods and Test
2
D3176 Practice for Ultimate Analysis of Coal and Coke
Methods D3173, D3174, and D3175 for proximate analysis
D3180 Practice for Calculating Coal and Coke Analyses
of coal and coke are shown to exist, the instrumental results
2
from As-Determined to Different Bases
shallbecorrectedortheinstrumentcalibratedusingsamplesof
2
D3302 Test Method for Total Moisture in Coal
known proximate analysis. Test Methods D3173, D3174, and
D3175 shall be considered the referee test methods. The
3. Terminology
instrumental test methods are not applicable to thermogravi-
3.1 Fordefinitionsoftermsusedinthistestmethod,referto
metric analyzers using microgram size samples.
Terminology D121.
1.2 The moisture value determined is used for calculating
other analytical results to a dry basis. When used in conjunc-
4. Summary of Test Methods
tionwiththeairdrylossmoisture,asdeterminedinaccordance
4.1 Moisture is determined by establishing the loss in mass
with Method D2013, Test Method D3302, or Practice D346,
of the analysis specimen of coal or coke when heated under
the calculated total moisture can be used to convert dry basis
rigidly controlled conditions of temperature, time, atmosphere,
analytical results to the as-received basis.
specimen mass, and equipment specifications.
1.3 The result of the ash determinations can be applied in
4.2 Volatile matter is determined by measuring the loss in
the ultimate analysis, Practice D3176.
mass of the moist or dried analysis specimen of coal or coke
1.4 This standard does not purport to address all of the
whenheatedunderrigidlycontrolledconditions.Ifappropriate,
safety concerns, if any, associated with its use. It is the
the measured mass loss establishes the volatile matter after
responsibility of the user of this standard to establish appro-
correcting for the moisture content.
priate safety and health practices and determine the applica-
4.3 Ash is determined by measuring the mass of the residue
bility of regulatory limitations prior to use.
remaining after burning the coal or coke specimen under
rigidly controlled conditions of specimen mass, temperature,
2. Referenced Documents
time, atmosphere, and equipment specifications.
2.1 ASTM Standards:
2 4.4 In these test methods, moisture, volatile matter, and ash
D121 Terminology of Coal and Coke
may be determined sequentially in a single instrumental
D346 Practice for Collection and Preparation of Coke
2 procedure. With some systems, the procedure consists of
Samples for Laboratory Analysis
simply placing a specimen in the microprocessor-controlled
instrumentandinitiatingtheautomaticprocessofanalyzingthe
1
ThesetestmethodsareunderthejurisdictionofASTMCommitteeD05onCoal specimen.
and Coke and are the direct responsibility of Subcommittee D05.21 on Methods of
4.5 In other systems, the analytical process is manually
Analysis.
controlled,althoughtheinstrumentsmayhavemicroprocessors
Current edition approved Oct. 10, 2002. Published January 2003.
to assist in controlling conditions of the instrument and for
Orginally approved in 1990. Last previous edition approved in 1998 as
D5142–90(1998).
calculations. The actual analytical process can vary from
2
Annual Book of ASTM Standards, Vol 05.06.
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1

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn. Contact ASTM
International (www.astm.org) for the
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