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ASTM E953-23

Current Revision

Standard Test Method for Fusibility of Refuse-Derived Fuel (RDF) Ash

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1.1 This test method covers the observation of the temperatures at which triangular pyramids (cones) prepared from RDF ash attain and pass through certain stages of fusing and flow when heated at a specific rate in controlled, mildly reducing, and oxidizing atmospheres.

1.2 The test method is empirical, and strict observance of the requirements and conditions is necessary to obtain reproducible temperatures and enable different laboratories to obtain comparable results.

1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.

1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.


4.1 This standard is for determining the fusibility of ash produced from RDF.

4.2 Limitations of Ash Fusibility Data—Ash fusibility data are often over-interpreted. In practice, types of burning equipment, rate of burning, temperature and thickness of fire bed or ball, distribution of ash forming mineral matter in the RDF, and viscosity of the molten ash may influence ash behavior more than the ash fusibility characteristics determined by the laboratory test. Also, conditions existing during applied combustion of RDF are so complex that they are impossible to duplicate completely in a small-scale laboratory test. Therefore, the analysis should be considered an empirical one and the data only qualitative.

SDO ASTM: ASTM International
Document Number E953
Publication Date Nov. 1, 2023
Language en - English
Page Count 5
Revision Level 23
Supercedes
Committee D34.03
Publish Date Document Id Type View
Nov. 1, 2023 E0953-23 Revision
April 1, 2004 E0953-88R04 Reaffirmation
April 10, 1998 E0953-88R98 Reaffirmation