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Proposed ASTM Engine Coolant Standards focus on use of glycerin.

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April 27, 2010 - Series of proposed standards being developed by ASTM International Committee D15 on Engine Coolants would remove technical barriers that currently prevent cost-effective replacement of ethylene glycol with more environmentally friendly glycerin in antifreeze. Proposed standards include ASTM WK22966, Test Method for Determination of Glycerin Assay by Titrimetric and ASTM WK22967, Test Method for Determination of Fatty Acids and Esters in Glycerin.

Proposed ASTM Engine Coolant Standards Focus on Glycerin


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ASTM International
100 Barr Harbor Dr., Box C700
West Conshohocken, PA, 19428-2959
USA



Press release date: April 21, 2010

W. CONSHOHOCKEN, Pa., -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 a co-product of renewable fats and oils that have been saponified, hydrolyzed or transesterified. Although glycerin, which is nontoxic to the environment, was used as a heat transfer agent in antifreeze formulations as early as 1920, it was eventually replaced by ethylene glycol in the 1930s due to cost considerations. Increases in the production of biodiesel since 2004 have produced a surplus of glycerin in the global market, which has presented the possibility of a more cost-effective return of glycerin to antifreeze. According to Deborah Baldwin, product manager for glycerin, Vantage Oleochemicals, Committee D15 first needed to determine what would be the appropriate grade of refined glycerin required to ensure compatibility with engine parts and seals. "We settled on 99.5 percent pure glycerin," says Baldwin. "We then needed to determine what impurities were present in glycerin that need to be controlled and measured." The subcommittee's work led to the development of two proposed standards, ASTM WK22966, Test Method for Determination of Glycerin Assay by Titrimetric (Sodium Meta Periodate); and ASTM WK22967, Test Method for Determination of Fatty Acids and Esters in Glycerin. Interlaboratory studies have been completed for each of these standards, which are now on ballot.

In addition to ASTM WK22966 and ASTM WK22967, the following proposed D15.93 glycerin standards are being developed: ASTM WK27254, Specification for Engine Coolant Grade 1,2,3 Propanetriol (Glycerin, Glycerol); ASTM WK27255, Specification for Glycerin Base Engine Coolant for Automobile and Light-Duty Service; and ASTM WK27256, Specification for Fully-Formulated Glycerin Base Engine Coolant for Heavy-Duty Engines. ASTM International welcomes and encourages participation in the development of its standards. For more information on becoming an ASTM member, visit http://www.astm.org/JOIN. ASTM International is one of the largest international standards development and delivery systems in the world. ASTM International meets the World Trade Organization (WTO) principles for the development of international standards: coherence, consensus, development dimension, effectiveness, impartiality, openness, relevance and transparency. ASTM standards are accepted and used in research and development, product testing, quality systems and commercial transactions. View this release on the ASTM Web site at www.astmnewsroom.org. ASTM Committee D15 Next Meeting: May 18-19, May Committee Week, St. Louis, Mo.

Technical Contact: Deborah Baldwin, Vantage Oleochemicals, Chicago, Ill., Phone: 773-650-7576; deborah.baldwin@vantageoleo.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 #8555

www.astm.org
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