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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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A proposed ASTM standard will be useful in covering the level of defects that exist in hot rolled rod coil. The proposed standard, ASTM WK37796 , Specification for General Requirements for Hot Rolled Rod Coil, is being developed by Subcommittee B02.07 on Refined Nickel and Cobalt and Their Alloys , part of ASTM International Committee B02 on Nonferrous Metals and Alloys . According to Larry Paul…, ASTM Committee B02 Next Meeting:, Nov. 12-14, 2012, November Committee Week, Atlanta, Ga., Technical Contact:, Larry Paul, ThyssenKrupp VDM USA, LLC, Peru, Ind., Phone: 765-689-0215; larry.paul@thyssenkrupp.com, ASTM Staff Contact:, Jeffrey Adkins, Phone: 610-832-9738; jadkins@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org R elease #9286
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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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The creation of new nickel base alloys in pipe and tube forms, used in the oil and power industries, was the driving force for developing a new ASTM International standard, ASTM B983 , Specification for Precipitation Hardened or Cold Worked, Seamless Nickel Alloy Pipe and Tube. ASTM B983 was developed by Subcommittee B02.07 on Refined Nickel and Cobalt and Their Alloys , part of ASTM…
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Current members of ASTM International Committees C01 on Cement and C09 on Concrete and Concrete Aggregates , and other interested parties, are invited to join a new C01 subcommittee, C01.98 on Sustainability Assessment. The scope of C01.98 is to support the development and maintenance of standards related to methodologies and metrics for assessing sustainability in the manufacture and use of…
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A new ASTM International practice provides a standard for preparing a mixture of cement paste that will simulate the shearing experienced by the cement paste in concrete. The new standard, ASTM C1738 , Practice for High-Shear Mixing of Hydraulic Cement Pastes, was developed by Subcommittee C01.22 on Workability , part of ASTM International Committee C01 on Cement . According to Chiara Ferraris,…
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ASTM International Committee B02 on Nonferrous Metals and Alloys is currently working on a proposed new ASTM International standard for zinc alloys being used for spin casting. The proposed standard, ASTM WK30745 , Specification for Zinc Alloys for Spin Casting, is being developed by Subcommittee B02.04 on Zinc and Cadmium. According to Bernard Potts, president of Village Casting Inc., and a…
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Rapid hardening hydraulic cements are used in a variety of applications in which reduced cementitious contents are desired or early service is needed. Included among these applications are paving, construction, stucco, mortar and block. A newly approved ASTM International standard covering these cements, ASTM C1600/C1600M , Specification for Rapid Hardening Hydraulic Cement, has been developed by…, Type URH, —ultra rapid hardening, for use where ultra high early strength is desired;, Type VRH, —very rapid hardening, for use where very high early strength is desired;, Type MRH, —medium rapid hardening, for use where mid-range rapid hardening, high early strength is desired; and, Type GRH, —general rapid hardening, for use when the higher strength properties of Type VRH or a Type MRH cement is not required. “ASTM C1600 lists minimum requirements for compressive strength, setting time, shrinkage and soundness (autoclave expansion),” says Hicks. “Optional specifications for sulfate expansion, alkali silicate reactions with aggregates, heat of hydration and expansion in water are also…
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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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A proposed new ASTM International standard will provide a definable quality specification for both producers and consumers of secondary Prime Western Grade zinc metal. WK16399 , Specification for Prime Western Grade-Recycled (PWG-R) Zinc Metal Produced from Recycled Zinc Secondary Material, is being developed by Subcommittee B02.04 on Zinc and Cadmium, part of ASTM International Committee B02 on…