ASTM D3177-02
(Test Method)Standard Test Methods for Total Sulfur in the Analysis Sample of Coal and Coke
Standard Test Methods for Total Sulfur in the Analysis Sample of Coal and Coke
SCOPE
1.1 These test methods cover two alternative procedures for the determination of total sulfur in samples of coal and coke. Sulfur is included in the ultimate analysis of coal and coke.
1.2 The procedures appear in the following order:SectionsMethod A—Eschka Method6-9Method B—Bomb Washing Method10 and 11
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. Specific precautionary statements are given in Sections 11.1.1-11.1.1.7.
1.3 The values stated in SI units are to be regarded as the standard.
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Designation:D3177–02
Standard Test Methods for
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Total Sulfur in the Analysis Sample of Coal and Coke
This standard is issued under the fixed designation D 3177; 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 3. Summary of Test Methods
1.1 These test methods cover two alternative procedures for 3.1 Eschka Method—A weighed sample and Eschka mix-
the determination of total sulfur in samples of coal and coke. ture are intimately mixed and ignited together. The sulfur is
Sulfur is included in the ultimate analysis of coal and coke. dissolved in hot water and then precipitated from the resulting
1.2 The procedures appear in the following order: solution as barium sulfate (BaSO ). The precipitate is filtered,
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ashed, and weighed.
Sections
MethodA—Eschka Method 6-9
3.2 Bomb Washing Method—Sulfur is precipitated as
Method B—Bomb Washing Method 10 and 11
BaSO from oxygen-bomb calorimeter washings, and the
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1.3 This standard does not purport to address all of the
precipitate is filtered, ashed, and weighed.
safety concerns, if any, associated with its use. It is the
4. Significance and Use
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica- 4.1 Determination of sulfur is, by definition, part of the
bility of regulatory limitations prior to use. Specific precau- ultimate analysis of coal.
tionary statements are given in Sections 11.1.1-11.1.1.7. 4.2 Sulfur analysis results obtained by these methods are
1.4 The values stated in SI units are to be regarded as the used to serve a number of interests: evaluation of coal
standard.
preparation, evaluation of potential sulfur emissions from coal
combustion or conversion processes, evaluation of the coal
2. Referenced Documents
quality in relation to contract specification, and other purposes
2.1 ASTM Standards:
of commercial or scientific interest.
D 346 Practice for Collection and Preparation of Coke
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5. Sample
Samples for Laboratory Analysis
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D 1193 Specification for Reagent Water 5.1 The sample shall be the material pulverized to pass No.
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D 2013 Practice for Preparing Coal Samples for Analysis 60 (250-µm) sieve in accordance with Method D 2013 or
D 2015 Test Method for Gross Calorific Value of Coal and Method D 346.
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Coke by the Adiabatic Bomb Calorimeter 5.2 A separate portion of the analysis sample should be
D 3173 Test Method for Moisture in theAnalysis Sample of analyzed for moisture content in accordance with Test Method
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Coal and Coke D 3173, so that calculation to other than the as-determined
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D 3176 Practice for Ultimate Analysis of Coal and Coke basis can be made.
D 3180 Practice for Calculating Coal and Coke Analyses 5.3 Procedures for converting as-determined sulfur values
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from As-Determined to Different Bases obtained from the analysis sample to other bases are described
D 3286 Test Method for Gross Calorific Value of Coal and in Practice D 3176 and Method D 3180.
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Coke by the Isoperibol Bomb Calorimeter 5.4 Standard Reference Material (SRM), such as SRM Nos.
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E 144 Practice for Safe Use of Oxygen Combustion 2682 through 2685—Sulfur in Coal which consist of four
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Bombs different coals that have been individually crushed and ground
to pass a No. 60 (250-µm) sieve, and bottled in 50-g units, or
other commercially available reference material coals with a
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ThesetestmethodsareunderthejurisdictionofASTMCommitteeD05onCoal
certified sulfur content of 6 0.0xx precision can be used.
and Coke and are the direct responsibility of Subcommittee D05.21 on Methods of
Sulfur values obtained by analyzing these coals, using any of
Analysis.
Current edition approved September 10, 2002. Published October 2002. Origi-
nally published as D 3177 – 73. Last previous edition D 3177 – 89 (2002).
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Annual Book of ASTM Standards, Vol 05.06.
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Annual Book of ASTM Standards, Vol 11.01. Available from National Institute of Standards and Technology, Gaithersburg,
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Annual Book of ASTM Standards, Vol 14.04. MD 20899.
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D3177–02
the methods described in this test method, may be used for 7.9 Sodium Hydroxide Solution (100 g/L)—Dissolve 100 g
checking the accuracy of analytical results. of sodium hydroxide (NaOH) in 1 L of water. This solution
may be used in place of the Na CO solution.
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ALTERNATIVE PROCEDURES
8. Procedure
TEST METHOD A—ESCHKA METHOD
8.1 Preparation of Sample and Mixture—Thoroughly mix
6. Apparatus
on glazed
...
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