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A proposed new standard on determining the total amount of fluorine and chlorine in coal and coke will be useful to those working with power plant boilers as well as by those in government and industry who are trying to model the release of anions into the environment. The proposed new standard, ASTM WK33343 , Test Method for Total Fluorine and Chlorine in Coal, Coke and their Residues by…
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A new ASTM International standard, adopted from an American Concrete Institute test method, will be used to help ensure the safety of construction projects. ASTM C1741 , Test Method for Bleed Stability of Cementitious Post-Tensioning Tendon Grout, is under the jurisdiction of Subcommittee C09.41 on Hydraulic Cement Grouts , part of ASTM International Committee C09 on Concrete and Concrete…
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Piston ring/liner interface can contribute as much as half the total friction loss in internal combustion engines, with the resulting wear leading to reduced energy efficiency and raised emissions. A new ASTM International standard provides a method to more accurately measure small amounts of wear on curved piston ring segments and their counterfaces after lubricated bench-scale testing. “Coupled…
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New ASTM Vitrinite Reflectance Standard Will Aid in Prediction of Undiscovered Hydrocarbon ResourcesA new ASTM International standard for measuring the reflectance of vitrinite in sedimentary rocks will help improve predictions of the location, quantity and quality of undiscovered hydrocarbon resources. ASTM D7708 , Test Method for Microscopical Determination of the Reflectance of Vitrinite Dispersed in Sedimentary Rocks, was developed by Subcommittee D05.28 on Petrographic Analysis of Coal and…, ASTM Committee D05 Next Meeting:, Oct. 30-Nov. 2, 2011, October Committee Week, Tampa, Fla., Technical Contact:, Paul C. Hackley, U.S. Geological Survey, Reston, Va., Phone: 703-648-6458; phackley@usgs.gov, ASTM Staff Contact:, Scott Orthey, Phone: 610-832-9730; sorthey@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #8881
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Natural gas from unconventional sources such as coal beds has become a common target of exploration. Now, a new ASTM standard is the first to describe a method for determining the gas content of coal from such sources by desorption, using samples obtained by surface drilling. ASTM D7569 , Practice for Determination of Gas Content of Coal - Direct Desorption Method, was developed by Subcommittee…, ASTM Committee D05 Next Meeting:, May 15-18, 2011, May Committee Week, Anaheim, Calif., Technical Contact:, Peter Warwick, U.S. Geological Survey, Reston, Va., Phone: 703-648-6469; pwarwick@usgs.gov, ASTM Staff Contact:, Scott Orthey, Phone: 610-832-9730; sorthey@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #8749
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ASTM Committee G02 on Wear and Erosion is including a field trip in the plans for its Dec. 8-9 meeting in Jacksonville, Fla. Committee members will be visiting the Tribology Laboratory in the mechanical engineering department at the University of Florida in Gainesville. The Tribology Laboratory is actively involved in a wide variety of tribological research and tribology education projects. The…
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A new ASTM standard will be useful to slide and engine companies, as well as makers of bushing materials, in studies that involve the measurement of system friction forces. The new standard, ASTM G203 , Guide for Determining Friction Energy Dissipation in Reciprocating Tribosystems, was developed by Subcommittee G02.50 on Friction, part of ASTM International Committee G02 on Wear and Erosion.…
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Moisture, volatile matter and ash are three of the primary parameters used for assessing the quality of coal. A new ASTM standard that covers the use of a macro thermogravimetric analyzer for the determination of moisture, volatile matter and ash in analysis samples of coal and coke has recently been approved by ASTM International Committee D05 on Coal and Coke. ASTM D7582 , Test Methods for…, ASTM Committee D05 Next Meeting:, May 16-19, May committee week, St. Louis, Mo., Technical Contact:, John T. Riley, Ph.D., Western Kentucky University, Bowling Green, Ky., Phone: 270-842-2757; brgrileys@insightbb.com, ASTM Staff Contact:, Scott Orthey, Phone: 610-832-9730; sorthey@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #8 508/Feb2010
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Rapid hardening hydraulic cements are used in a variety of applications in which reduced cementitious contents are desired or early service is needed. Included among these applications are paving, construction, stucco, mortar and block. A newly approved ASTM International standard covering these cements, ASTM C1600/C1600M , Specification for Rapid Hardening Hydraulic Cement, has been developed by…, Type URH, —ultra rapid hardening, for use where ultra high early strength is desired;, Type VRH, —very rapid hardening, for use where very high early strength is desired;, Type MRH, —medium rapid hardening, for use where mid-range rapid hardening, high early strength is desired; and, Type GRH, —general rapid hardening, for use when the higher strength properties of Type VRH or a Type MRH cement is not required. “ASTM C1600 lists minimum requirements for compressive strength, setting time, shrinkage and soundness (autoclave expansion),” says Hicks. “Optional specifications for sulfate expansion, alkali silicate reactions with aggregates, heat of hydration and expansion in water are also…
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Measuring the reflectance of vitrinite dispersed in sedimentary rocks is one of the most commonly used tools for determining thermal maturity in hydrocarbon exploration, basin modeling and other geological applications. Despite this, there currently is not a consensus standard for making these measurements. ASTM International Committee D05 on Coal and Coke is developing a proposed standard to…