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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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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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ASTM International Committee D27 on Electrical Insulating Liquids and Gases is continuing its work on standards for natural esters with the development of a proposed new standard, WK21616 , Test Method for Oxidation Induction Time of Natural Ester Insulating Fluids by Pressure (PDSC) or Regular Differential Scanning Calorimetry (DSC). The proposed standard was submitted under the jurisdiction of…
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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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Dried blood represents the greatest challenge to cleaning surgical instruments. To meet this challenge, ASTM International Committee D12 on Soaps and Other Detergents has developed a new standard, D 7225 , Guide for Blood Cleaning Efficiency of Detergents and Washer-Disinfectors. The new guide is under the jurisdiction of Subcommittee D12.16 on Hard Surface Cleaning. Water-soluble components of…
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ASTM International Committee F16 on Fasteners has recently approved an important new standard that deals with coated threaded fasteners and washers by hot-dip zinc galvanizing. The standard, F 2329, Specification for Zinc Coating, Hot-Dip, Requirements for Application to Carbon and Alloy Steel Bolts, Screws, Washers, Nuts and Special Threaded Fasteners, is under the jurisdiction of Subcommittee…
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During the past five years, certain insulating oils have been found to contain corrosive sulfur that can produce copper sulfide deposits as a function of time and temperature in operating equipment. A proposed revision to ASTM standard D 1275, Test Method for Corrosive Sulfur in Electrical Insulating Oils, will provide a means to certify that new or in service oils either contain or do not…
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ASTM International will launch a new Proficiency Testing Program (PTP) on Dissolved Gas Analyses (DGA) of In-Service Insulating Fluid in February 2006. The program will be offered to laboratories who need a statistical quality assurance tool that will enable them to improve and maintain a high level of performing ASTM standard D 3612, Test Method for Analysis of Gases Dissolved in Electrical…