Significance and Use
The combustible carbon content of solid residues is used to calculate efficiency of fuel combustion in boiler furnaces and similar combustors.
Combustible carbon values are also used to determine the residual fuel value of incompletely combusted/reacted coal and coke in other reactors that consume carbonaceous fuels (examples include fluidized bed furnaces and liquefaction, gasification and pyrolysis reactors).
The combustible carbon content of flyash is an important parameter in the use of flyash as a cement additive.
1.1 This test method covers the determination of total, combustible, and carbonate carbon remaining in the solid byproducts of combustion from boiler furnaces and similar reactors, including ash, flyash, char, slag, and similar materials.
1.2 This test method is intended for the use of industry to determine the performance of boiler furnaces and similar combustion reactors and aid in determining the quality of the solid residue from combustion.
1.3 This test method comprises the use of any of several methods to determine total carbon content combined with any of several methods to determine carbonate carbon, and the calculation, by difference, of the combustible carbon remaining in a sample.
1.4 Alternatively, this test method applies to the determination of total carbon remaining in a material after acidification with strong acid to evolve carbonate carbon. In this case, the combustible carbon is the total carbon measured in the sample after acidification.
1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.6 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 to determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D121 Terminology of Coal and Coke
D513 Test Methods for Total and Dissolved Carbon Dioxide in Water
D1756 Test Method for Determination as Carbon Dioxide of Carbonate Carbon in Coal
D3178 Test Methods for Carbon and Hydrogen in the Analysis Sample of Coal and Coke
D3180 Practice for Calculating Coal and Coke Analyses from As-Determined to Different Bases
D5373 Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Laboratory Samples of Coal and Coke
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ANSI/ASMEStandard,PT Determining the Concentration of Particulate Matter in A Gas Stream and US EPA Standard CFR 60 Appendix A, Method 17 Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
ash; carbon; carbon dioxide; carbonate; char; coal; coke; coulometric; combustible; fly ash; slag; solid residues; Carbonate content; Coal/coke products; Coke; Combustible carbon; Residue; Solid residue; Total carbon (TC);
ICS Number Code 75.160.10 (Solid fuels)
ASTM International is a member of CrossRef.
Citing ASTM Standards
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