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ASTM Committee is developing proposed PTA test standard.

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August 2, 2012 - There are 2 proposed ASTM standards being developed that will be used to find major impurities in purified terephthalic acid (PTA) product. Said standards are ASTM WK36121 and K36122, Test Method for Determination of p-Toluic Acid and 4-Carboxybenzaldehyde in Purified Terephthalic Acid by High Performance Liquid Chromatography; and High Performance Capillary Electrophoresis, respectively. Both are being developed by Subcommittee D16.02 on Oxygenated Aromatics.

ASTM Aromatic Hydrocarbons Committee Developing Proposed Standard for Purified Terephthalic Acid


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



Press release date: July 31, 2012

W. CONSHOHOCKEN, Pa.-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 Purified Terephthalic Acid by High Performance Liquid Chromatography, and ASTM K36122, Test Method for Determination of p-Toluic Acid and 4-Carboxybenzaldehyde in Purified Terephthalic Acid by High Performance Capillary Electrophoresis. Both proposed standards are being developed by Subcommittee D16.02 on Oxygenated Aromatics, part of ASTM International Committee D16 on Aromatic Hydrocarbons and Related Chemicals.

According to Yuhong Zhang, an analytical technical specialist at the China Petrochemical Corp., and D16.02 chair, there are several reasons for the development of ASTM WK36121 and ASTM WK36122: Global supply, demand and trade for PTA is very strong and will continue to be throughout the next decade; 4-carboxybenzaldehyde and p-Toluic acid are the two major impurities in PTA product and need to be well-controlled; and Current lack of international standards has caused inconvenience and high testing costs in PTA trade.

"The two proposed test methods will be used by PTA producers for quality control," says Zhang. "Global adoption of the proposed standard will facilitate world trade and diminish technical barriers."

All interested parties are encouraged to join Committee D16 in its standards developing activities.

ASTM International welcomes participation in the development of its standards. For more information on becoming an ASTM member, visit 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.

For more news in this sector, visit www.astm.org/sn-chemicals or follow us on Twitter @ASTMChemicals.

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
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