ASTM D3175-07
(Test Method)Standard Test Method for Volatile Matter in the Analysis Sample of Coal and Coke
Standard Test Method for Volatile Matter in the Analysis Sample of Coal and Coke
SIGNIFICANCE AND USE
Volatile matter, when determined as herein described, can be used to establish the rank of coals, to indicate coke yield on carbonization process, to provide the basis for purchasing and selling, or to establish burning characteristics.
SCOPE
1.1 This test method determines the percentage of gaseous products, exclusive of moisture vapor, in the analysis sample which are released under the specific conditions of the test.
1.2 This test method for determination of volatile matter is empirical; because of its empirical nature, strict adherence to basic principals and permissible procedures is required to obtain valid results.
1.3 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.
1.4 The values stated in SI units are to be regarded as the standard.
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Designation:D3175–07
Standard Test Method for
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Volatile Matter in the Analysis Sample of Coal and Coke
This standard is issued under the fixed designation D3175; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope crucible when heated at the standard rate. Such coals normally
include all low-rank noncaking coals and lignites but can also
1.1 This test method determines the percentage of gaseous
include those anthracites, semianthracites, bituminous, and
products, exclusive of moisture vapor, in the analysis sample
cokes that lose solid particles as described above. These are
which are released under the specific conditions of the test.
defined as sparking fuels because particles escaping at the
1.2 This test method for determination of volatile matter is
higher temperatures can become incandescent and spark as
empirical; because of its empirical nature, strict adherence to
they are emitted.
basic principals and permissible procedures is required to
obtain valid results.
4. Summary of Test Method
1.3 This standard does not purport to address all of the
4.1 Volatile matter is determined by establishing the loss in
safety concerns, if any, associated with its use. It is the
weight resulting from heating a coal or coke under rigidly
responsibility of the user of this standard to establish appro-
controlled conditions. The measured weight loss, corrected for
priate safety and health practices and determine the applica-
moisture as determined in Test Method D3173 establishes the
bility of regulatory limitations prior to use.
volatile matter content.Two procedures are described to permit
1.4 The values stated in SI units are to be regarded as the
conformity with differences in sample behavior.
standard.
4.2 In this empirical test method, the use of platinum
2. Referenced Documents crucibles shall be considered the standard reference method for
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volatile matter. Platinum crucibles shall be used in determining
2.1 ASTM Standards:
the volatile matter of coke and volatile matter determined for
D346 Practice for Collection and Preparation of Coke
classification of coals by rank. Volatile matter determinations
Samples for Laboratory Analysis
by some laboratories using alternate nickel-chromium alloy
D2013 Practice for Preparing Coal Samples for Analysis
crucibles having the physical dimensions specified in 6.1 have
D3173 Test Method for Moisture in theAnalysis Sample of
been shown to differ from those obtained using platinum
Coal and Coke
crucibles. A laboratory utilizing nickel-chromium crucibles
3. Terminology
shall first determine if a relative bias exists between the use of
nickel-chromium and platinum crucibles on the coals being
3.1 Definition:
tested using the test method set forth in Annex A. Where a
3.1.1 sparking fuels—within the context of this test method,
relative bias is shown to exist, the volatile matter determined
fuels that do not yield a coherent cake as residue in the volatile
using nickel-chromium crucibles shall be corrected by a factor
matter determination but do evolve gaseous products at a rate
determined through comparison of volatile matter results from
sufficient to mechanically carry solid particles out of the
both crucible types on coals being tested or analysis of samples
of known proximate analysis.
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This test method is under the jurisdiction of ASTM Committee D05 on Coal
and Coke and is the direct responsibility of Subcommittee D05.21 on Methods of
5. Significance and Use
Analysis.
5.1 Volatile matter, when determined as herein described,
Current edition approved March 1, 2007. Published April 2007. Originally
approved in 1973. Last previous edition approved in 2002 as D3175 – 02. DOI:
can be used to establish the rank of coals, to indicate coke yield
10.1520/D3175-07.
on carbonization process, to provide the basis for purchasing
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
and selling, or to establish burning characteristics.
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.
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D3175–07
6. Apparatus volatile matter within the button. This is usually designated as
popping. Such popping can blow the lid off the crucible and
6.1 Platinum Crucible, with closely fitting cover, for co
...
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