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Sieve manufacturers produce testing sieves using various sizes of wire cloth, per ASTM International standard E 11, Specification for Wire Cloth and Sieves for Testing Purposes. They also use ASTM standards E 161, Specification for Precision Electroformed Sieves, and E 323, Specification for Perforated-Plate Sieves for Testing Purposes when producing sieves from perforated plate. These…
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Most of the coal burned in the United States contains only trace amounts of chloride and fluoride. However, due to the increasing regulation of these compounds for clean air initiatives, being able to measure even small amounts of chloride and fluoride in coal has taken on a greater importance than ever. Recognizing this, ASTM International Committee D05 on Coal and Coke has begun to develop a…
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ASTM International Committee D05 on Coal and Coke is seeking participation in the development of a proposed new standard, WK9165, Test Methods for Loss on Ignition of Solid Combustion Residues. According to John Riley, a recently retired chemistry professor at Western Kentucky University, the question of how loss on ignition testing is done is an issue that a task group he chairs began looking at…
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Natural gas from unconventional sources, such as from coal beds (coal bed methane), has become a common target for exploration in recent years. Coal gas demand continues to grow and is expected to provide about 10 percent of U.S. production in the future. However, there are no standards available that describe procedures used to determine the gas content of North American coal and the most…