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ASTM D3179-02

(Test Method)

Standard Test Methods for Nitrogen in the Analysis Sample of Coal and Coke

Standard Test Methods for Nitrogen in the Analysis Sample of Coal and Coke

SCOPE
1.1 These test methods cover the determination of total nitrogen in samples of coal and coke. The analytical data from these test methods shall be reported as part of ultimate analysis where ultimate analysis is requested. If ultimate analysis is not requested, the value shall be reported according to the request. Two methods are included as follows: SectionsTest Method A—Kjeldahl-Gunning Macro Analysis, with an alter-native technique included9 to 16Test Method B—Kjeldahl-Gunning Semi-Micro Determination 17 to 23
1.2 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.
1.2 The values stated in SI units are to be regarded as the standard.

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
Current Stage
Ref Project

Relations

Replaces
ASTM D3179-89(2002) - Standard Test Methods for Nitrogen in the Analysis Sample of Coal and Coke
Effective Date
10-Oct-2002
Replaced By
ASTM D3179-02e1 - Standard Test Methods for Nitrogen in the Analysis Sample of Coal and Coke (Withdrawn 2008)
Effective Date
10-Oct-2002
Referred By
ASTM D6700-19 - Standard Guide for Use of Scrap Tires as Tire-Derived Fuel
Effective Date
10-Oct-2002

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ASTM D3179-02 - Standard Test Methods for Nitrogen in the Analysis Sample of Coal and Coke
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 latest information.
Designation:D3179–02
Standard Test Methods for
1
Nitrogen in the Analysis Sample of Coal and Coke
This standard is issued under the fixed designation D 3179; 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. Terminology
1.1 These test methods cover the determination of total 3.1 For definitions of terms used in these test methods, refer
nitrogen in samples of coal and coke. The analytical data from to Definitions D 121. For an explanation of the metric system
these test methods shall be reported as part of ultimate analysis including units, symbols, and conversion factors, see IEEE/
where ultimate analysis is requested. If ultimate analysis is not ASTM SI 10.
requested, the value shall be reported according to the request.
4. Summary of Test Methods
Two methods are included as follows:
4.1 In these procedures, nitrogen is converted into ammo-
Sections
Test Method A—Kjeldahl-Gunning MacroAnalysis, with an alter-
nium salts by destructive digestion of the sample with a hot,
native technique included 9 to 16
catalyzed mixture of concentrated sulfuric acid and potassium
Test Method B—Kjeldahl-Gunning Semi-Micro Determination 17 to 23
sulfate. These salts are subsequently decomposed in a hot
1.2 This standard does not purport to address all of the
alkaline solution from which the ammonia is recovered by
safety concerns, if any, associated with its use. It is the
distillation and finally determined by alkalimetric or acidimet-
responsibility of the user of this standard to establish appro-
ric titration.
priate safety and health practices and determine the applica-
5. Significance and Use
bility of regulatory limitations prior to use.
1.3 The values stated in SI units are to be regarded as the
5.1 Nitrogen results obtained by these test methods are
standard.
required to fulfill the requirements of the ultimate analysis,
PracticeD 3176.Also,resultsobtainedmaybeusedtoevaluate
2. Referenced Documents
the potential formation of nitrogen oxides as a source of
2.1 ASTM Standards:
atmospheric pollution.
2
D 121 Terminology of Coal and Coke
5.2 Nitrogen data are used in comparing coals and in
D 346 Practice for Collection and Preparation of Coke
research. When the oxygen content of coal is estimated by
2
Samples for Laboratory Analysis
difference, it is necessary to make a nitrogen determination.
3
D 1193 Specification for Reagent Water
2
6. Interferences
D 2013 Practice for Preparing Coal Samples for Analysis
D 3173 Test Method for Moisture in theAnalysis Sample of
6.1 No significant interferences have been determined using
2
Coal and Coke
these procedures. However, strict adherence is necessary when
2
D 3176 Practice for Ultimate Analysis of Coal and Coke
using these nitrogen procedures to obtain good reproducible
D 3180 Practice for Calculating Coal and Coke Analyses
results.
2
from As-Determined to Different Bases
7. Reagents
IEEE/ASTM SI 10 Standard for Use of the International
4
System of Units (SI): The Modern Metric System
7.1 Purity of Reagents—Reagent grade chemicals shall be
used in all tests. Unless otherwise indicated, it is intended that
all reagents shall conform to the specifications of the Commit-
tee onAnalytical Reagents of theAmerican Chemical Society,
1
ThesetestmethodsareunderthejurisdictionofASTMCommitteeD05onCoal
and Coke and are the direct responsibility of Subcommittee D05.21 on Methods of
Analysis.
Current edition approved Oct. 10, 2002. Published January 2003. Originally
e1
published as D 3179 – 73. Last previous edition D 3179 – 89 (2002) .
2
Annual Book of ASTM Standards, Vol 05.06.
3
Annual Book of ASTM Standards, Vol 11.01.
4
Annual Book of ASTM Standards, Vol 14.02. Excerpts appear in the gray pages
of all the volumes.
Copyright ©ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA19428-2959, United States.
1

---------------------- Page: 1 ----------------------
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.
D3179–02
5
where such specifications are available. Other grades may be multiple unit distillation racks provided with water-cooled
used, provided it is first ascertained that the reagent is of glass or block-tin condensers may be used.
sufficient purity to meet its use without lessening the accuracy 10.4 Buret—Microburet graduated in 0.01 mL. A50 mL
of the determination. microburet is needed for Method A.
7.2 Water—Unless otherwise indicated, references to water 10.5 Erlenmeyer Flask—Having a capacity of 250 to 300
shall be under
...

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5.1 A compositional analysis of coal and coke and their associated combustion residues are often useful in assessing their quality. Knowledge of the elemental composition of the associated residues is also useful in predicting the elemental enrichment/depletion compositional behavior of ashes and slags in comparison to the mass fraction in the parent coal. Utilization of the ash by-products and hazardous potential may also depend on the chemical composition and leachability of the inorganic constituents of the coal ash.  
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1.1 This test method covers a procedure for the analysis of the commonly determined major and minor elements in coal, coke, and solid residues from combustion of coal and coke. These residues may be laboratory ash, bottom ash, fly ash, flue gas desulfurization sludge, and other combustion process residues.
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