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ASTM International Committee D15 on Engine Coolants has formed three new subcommittees: Subcommittees D15.22 on Non-Aqueous Coolants ; D15.25 on Diesel Exhaust Fluid ; and D15.30 on Industrial Heat Transfer Fluids . All interested parties are invited to join in the standards developing activities of these new subcommittees., D15.22, Non-Aqueous Coolants, While there has been an increased interest in non-aqueous coolants industry, there are no current ASTM standards in this area. D15.22 will begin to develop such standards. “The envisioned standards for non-aqueous coolants would be performance standards, rather than ingredient standards, to allow for formulations that are not currently proprietary,” says Jonathan T. Light, chief engineer, Evans…, D15.25, Diesel Exhaust Fluid, Diesel exhaust fluid, often referred to as DEF, is required by many diesel engine-powered vehicles delivered after January 2010. More recent environmental standards issued by the U.S. Environmental Protection Agency have created more stringent emissions standards for agricultural, construction and forestry equipment. DEF is used to reduce nitrogen oxide emissions, which allows original equipment…, D15.30, Industrial Heat Transfer Fluids, Members of D15 recognized that changes in the antifreeze industry, including new manufacturing technologies, improved inhibitor chemistries and recycling technologies, would likely be adapted to the facilities industry as a natural course of innovation. Because D15 has experience developing standards that are technically similar to the facilities heat transfer industry, it was deemed appropriate…, ASTM Committee D15 Next Meeting:, May 17-18, May Committee Week, Anaheim, Calif., Technical Contact:, (D15.22) Jonathan T. Light, Evans Cooling Systems Inc., Sharon, Conn., Phone: 860-435-2418; jtlight@comcast.net ; (D15.25) Edward Eaton Sr., Amalgatech, Phoenix, Ariz., Phone: 602-252-0280; edeaton@amalgatech.com ; (D15.30) John Panasewicz, Clear Choice Antifreeze, Henderson, Colo., Phone: 303-227-9900; johnp@clearchoiceantifreeze.com, ASTM Staff Contact:, Joe Koury, Phone: 610-832-9804; jkoury@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #8837
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ASTM grain size is a property written into many specifications for metals, with finer grain sizes generally indicating better mechanical properties, such as formability. While measuring certain materials for such properties can be difficult, electron backscatter diffraction can provide precise determinations as well as give information on grain size distribution and statistics. A new ASTM…
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A series of proposed new standards being developed by ASTM International Committee D15 on Engine Coolants would remove technical barriers that currently prevent the cost-effective replacement of ethylene glycol with more environmentally friendly glycerin in antifreeze. The proposed standards are under the jurisdiction of Subcommittee D15.93 on Research and Long Range Planning. Natural glycerin is…
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A recent revision to ASTM International standard E384 , Test Method for Knoop and Vickers Hardness of Materials, expands the range of its coverage. The standard is under the jurisdiction of Subcommittee E04.05 on Microindentation Hardness Testing, part of ASTM International Committee E04 on Metallography. The revision incorporates ASTM E92 , Test Method for Vickers Hardness of Metallic Materials…
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High-speed machine tool spindles and the high-pressure turbopumps that move liquid hydrogen in the space shuttle are just two examples of the uses for hybrid roller bearings. ASTM Subcommittee F34.01 on Rolling Element has now developed a standard for hybrid roller bearings, ASTM F2730/F2730M , Specification for Silicon Nitride Cylindrical Bearing Rollers. Subcommittee F34.01 is under the…
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In response to changing emissions restrictions and consumer expectations, ASTM International Committee D15 on Engine Coolants is now developing a proposed new standard, WK16003 , Specification for Engine Coolant Grade 1,3-propanediol (PDO). This task group is under the jurisdiction of Subcommittee D15.07 on Specifications. Edward Eaton, D15 member and chief engineer, Amalgatech, says that as…
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A new ASTM International standard that covers annular ball bearings intended primarily for use in instrument and precision rotating components has been developed as a conversion of a U.S. military standard, MIL-B-81793F, Annular Ball Bearings, for Instruments and Precision Rotating Components. The new standard, F 2332 , Specification for Annular Ball Bearings for Instruments and Precision…
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ASTM International Committee F34 on Rolling Element Bearings is seeking participation in a new activity on measuring the cleanliness and wetability of bearing components. Because aerospace customers currently use many different methods of testing ball bearings, the goal of the activity is to work toward a consistent method for measuring cleanliness and wetability, as well as to analyze the…