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Purified terephthalic acid, commonly known as PTA, is a major raw material for polymer and plastic manufacture used in making polyester fiber, resin and film. Four new ASTM International standards will be used to determine the presence of the impurities 4-Caraboxybenzaldehyde and p-Toluic Acid in PTA. The four new standards were developed by Subcommittee D16.02 on Oxygenated Aromatics , part of…, ASTM Committee D16 Next Meeting:, Jan. 29-30, 2014, January Committee Week, Houston, Texas, Technical Contact:, Yuhong Zhang, China Petrochemical Corp., Shanghai, China, Phone: 86-21-6846-2281; zhang-yh10@163.com, ASTM Staff Contact:, Kristy Straiton, Phone: 610-832-9640; kstraiton@astm.org , ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #9526
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Purified terephthalic acid, often known simply as PTA, is in high demand as the key raw material for the manufacture of polyester fiber, resin and film. Two proposed ASTM standards are currently being developed that will be used to find major impurities in PTA product. The two proposed standards are ASTM WK36121 , Test Method for Determination of p-Toluic Acid and 4-Carboxybenzaldehyde in…, ASTM Committee D16 Next Meeting:, Jan. 30-31, 2013, January Committee Week, Jacksonville, Fla., Technical Contact:, Yuhong Zhang, China Petrochemical Corp., Shanghai, China, Phone: 011-86-21-68462281; zhangyh.sshy@sinopec.com, ASTM Staff Contact:, Christine DeJong, Phone: 610-832-9736; cdejong@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org R elease #9266
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Discussions concerning how easily test results for dimension stone test specimens can be influenced by improper or nonuniform preparation methods have led to the ongoing development of a proposed new ASTM International standard. The new standard, ASTM WK31179 , Practice for Selection and Preparation of Dimension Stone Test Specimens, is being developed by Subcommittee C18.08 on Selection of…
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Petrography is routinely performed on dimension stone for many construction projects in which new stone is being used, and it is often required in technical specifications. In order to facilitate this process, ASTM International Committee C18 on Dimension Stone has developed a new standard, ASTM C1721 , Guide for Petrographic Examination of Dimension Stone. The new standard is under the…, ASTM Committee C18 Next Meeting:, April 21-22, April Committee Week, St. Louis, Mo., Technical Contact:, Michael Scheffler, Wiss, Janney, Elstner Associates Inc., Northbrook, Ill., Phone: 847-272-7400; mscheffler@wje.com, ASTM Staff Contact:, Jeff Adkins, Phone: 610-832-9738; jadkins@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #8432/Dec2009
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Mercury emissions from flue gases in coal-fired power plants are a large source of atmospheric mercury in the United States, but no standard for determination of mercury adsorption currently exists. One promising method of controlling these emissions involves the injection of powdered activated carbon into the flue gas. A proposed new ASTM International standard would evaluate the performance of…
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Manufacturers of toluene, mixed xylenes and p-xylene are often required to determine the type and amount of impurities that remain from manufacture. A new ASTM International standard, D7504 , Test Method for Trace Impurities in Monocyclic Aromatic Hydrocarbons by Gas Chromatography and Effective Carbon Number, can now be used as an internal quality control tool where these products are produced…
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Chemical plants and contract and research laboratories will all be likely users of a new ASTM International standard, D 7183 , Test Method for Determination of Total Sulfur in Aromatic Hydrocarbons and Related Chemicals by Ultraviolet Fluorescence. D 7183 was developed by Subcommittee D16.04 on Instrumental Analysis, part of ASTM International Committee D16 on Aromatic Hydrocarbons and Related…
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ASTM International standard D 1555, Test Method for Calculation of Volume and Weight of Industrial Aromatic Hydrocarbons and Cyclohexane, and its metric equivalent, D 1555M, have been revised by Committee D16 on Aromatic Hydrocarbons and Related Chemicals. The revision affects the basis for correcting volume from any temperature to 60 F (or 15 C using D 1555M), as well as calculating the weight…