ASTM D5142-02

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-Apr-2002
• ICS: 75.160.10 - Solid fuels
• Technical Committee: D05 - Coal and Coke
• Drafting Committee: D05.21 - Methods of Analysis

Relations

• Replaces: ASTM D5142-90(1998) - Standard Test Methods for Proximate Analysis of the Analysis Sample of Coal and Coke by Instrumental Procedures
• Effective Date: 10-Apr-2002
• Replaced By: ASTM D5142-02a - 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 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-Apr-2002
• Referred By: ASTM D3175-20 - Standard Test Method for Volatile Matter in the Analysis Sample of Coal and Coke
• Effective Date: 10-Apr-2002
• Referred By: ASTM D6721-01(2015) - Standard Test Method for Determination of Chlorine in Coal by Oxidative Hydrolysis Microcoulometry
• Effective Date: 10-Apr-2002

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: D 5142 – 02
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 D 5142; 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.
2
1. Scope D 2013 Practice for Preparing Coal Samples for Analysis
D 3173 Test Method for Moisture in the Analysis Sample of
1.1 These instrumental test methods cover the determination
2
Coal and Coke
of moisture, volatile matter, and ash, and the calculation of
D 3174 Test Method for Ash in the Analysis Sample of Coal
fixed carbon in the analysis of coal and coke samples prepared
2
and Coke from Coal
in accordance with Method D 2013 and Practice D 346. Re-
D 3175 Test Method for Volatile Matter in the Analysis
sults obtained through the use of the instrumental tests have
2
Sample of Coal and Coke
been shown to differ from those obtained with Test Methods
2
D 3176 Practice for Ultimate Analysis of Coal and Coke
D 3173, D 3174, and D 3175 on some coals and cokes. Where
D 3180 Practice for Calculating Coal and Coke Analyses
a relative bias between the instrumental methods and Test
2
from As-Determined to Different Bases
Methods D 3173, D 3174, and D 3175 for proximate analysis
2
D 3302 Test Method for Total Moisture in Coal
of coal and coke are shown to exist, the instrumental results
shall be corrected or the instrument calibrated using samples of
3. Terminology
known proximate analysis. Test Methods D 3173, D 3174, and
3.1 For definitions of terms used in this test method, refer to
D 3175 shall be considered the referee test methods. The
Terminology D 121.
instrumental test methods are not applicable to thermogravi-
metric analyzers using microgram size samples.
4. Summary of Test Methods
1.2 The moisture value determined is used for calculating
4.1 Moisture is determined by establishing the loss in mass
other analytical results to a dry basis. When used in conjunc-
of the analysis specimen of coal or coke when heated under
tion with the air dry loss moisture, as determined in accordance
rigidly controlled conditions of temperature, time, atmosphere,
with Method D 2013, Test Method D 3302, or Practice D 346,
specimen mass, and equipment specifications.
the calculated total moisture can be used to convert dry basis
4.2 Volatile matter is determined by measuring the loss in
analytical results to the as-received basis.
mass of the moist or dried analysis specimen of coal or coke
1.3 The result of the ash determinations can be applied in
when heated under rigidly controlled conditions. If appropriate,
the ultimate analysis, Practice D 3176.
the measured mass loss establishes the volatile matter after
1.4 This standard does not purport to address all of the
correcting for the moisture content.
safety concerns, if any, associated with its use. It is the
4.3 Ash is determined by measuring the mass of the residue
responsibility of the user of this standard to establish appro-
remaining after burning the coal or coke specimen under
priate safety and health practices and determine the applica-
rigidly controlled conditions of specimen mass, temperature,
bility of regulatory limitations prior to use.
time, atmosphere, and equipment specifications.
2. Referenced Documents 4.4 In these test methods, moisture, volatile matter, and ash
may be determined sequentially in a single instrumental
2.1 ASTM Standards:
2 procedure. With some systems, the procedure consists of
D 121 Terminology of Coal and Coke
simply placing a specimen in the microprocessor-controlled
D 346 Practice for Collection and Preparation of Coke
2 instrument and initiating the automatic process of analyzing the
Samples for Laboratory Analysis
specimen.
D 1757 Test Method for Sulfate Sulfur in Ash from Coal
2 4.5 In other systems, the analytical process is manually
and Coke
controlled, although the instruments may have microprocessors
to assist in controlling conditions of the instrument and for
1
These test methods are under the jurisdiction of ASTM Committee D05 on Coal
calculations. The actual analytical process can vary from
and Coke and are the direct responsibility of Subcommittee D05.21 on Methods of
instrument to instrument, but the overall process shall provide
Analysis.
Current edition approved April 10, 2002. Published July 2002. for the determination of moisture, volatile matter, and ash as
Orginally published as D 5142–90. Last previous edition D 5142–90(1998).
specified in 4.1, 4.2, and 4.3.
2
Annual Book of ASTM Standards, Vol 05.06.
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