ASTM-D4326 › Historical Revision Information
Standard Test Method for Major and Minor Elements in Coal and Coke Ash By X-Ray Fluorescence
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Scope
1.1 This test method covers the analysis of the commonly determined major and minor elements in ash from coal or coke using X-ray fluorescence (XRF) techniques.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
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.
Significance and Use
5.1 A compositional analysis of ash is used in describing the quality of coal for its complete characterization. Ash composition is useful in predicting slagging and fouling characteristics of combusted materials as well as the potential utilization of ash by-products.
5.2 The chemical composition of laboratory prepared coal or coke ash is rarely, if ever, representative of the composition of the mineral matter in the coal because the ashing process can alter some minerals. However, it can approximate the composition of the fly ash and slag resulting from commercial combustion of coal or coke.
Keywords
coal; coal ash; major elements; minor elements; X-ray fluorescence
To find similar documents by ASTM Volume:
05.06 (Gaseous Fuels; Coal and Coke)
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Document Number
ASTM-D4326-13
Revision Level
2013 EDITION
Status
Superseded
Modification Type
Revision
Publication Date
Oct. 1, 2013
Document Type
Test Method
Page Count
4 pages
Committee Number
D05.29