A compositional analysis of the ash in coal is often useful in the total description of the quality of the coal. Knowledge of ash composition is also useful in predicting the behavior of ashes and slags in combustion chambers. Utilization of the ash by-products of coal combustion sometimes depends on the chemical composition of the ash.

Note that the chemical composition of laboratory-prepared coal ash may not exactly represent the composition of mineral matter in the coal or the composition of fly ash and slag resulting from commercial-scale burning of the coal.

1. Scope

1.1 This test method covers the analysis of the commonly determined major and minor elements in combustion residues from coal utilization processes.

Test Methods D 1757 or D 5016 shall be used for determination of sulfur.

1.2 The values stated in SI units (IEEE/ASTM SI 10 ) shall to be regarded as the standard.

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.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

D1193 Specification for Reagent Water

D1757 Test Method for Sulfate Sulfur in Ash from Coal and Coke

D2013 Practice for Preparing Coal Samples for Analysis

D3173 Test Method for Moisture in the Analysis Sample of Coal and Coke

D3174 Test Method for Ash in the Analysis Sample of Coal and Coke from Coal

D3180 Practice for Calculating Coal and Coke Analyses from As-Determined to Different Bases

D5016 Test Method for Total Sulfur in Coal and Coke Combustion Residues Using a High-Temperature Tube Furnace Combustion Method with Infrared Absorption

D5142 Test Methods for Proximate Analysis of the Analysis Sample of Coal and Coke by Instrumental Procedures

E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

Keywords

aluminum oxide (A1₂O₃); ash analysis; atomic absorption spectroscopy; calcium oxide (CaO); elemental ash composition; ferric oxide (Fe₂O₃); magnesium oxide (MgO); potassium oxide (K₂O); silicon dioxide (SiO₂); sodium oxide (Na₂O); titanium dioxide (TiO₂);

ICS Code

ICS Number Code 27.060.01 (Burners and boilers in general)

Citing ASTM Standards

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