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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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New regulations set forth by the U.S. Environmental Protection Agency to mandate greenhouse gas reporting in the U.S. carbon black industry have led to the development of a new ASTM International standard, ASTM D7662 , Test Method for Carbon Content in Carbon Black Feedstock Oils. ASTM D7662 is under the jurisdiction of Subcommittee D24.66 on Environment, Health and Safety, part of ASTM…
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The U.S. Environmental Protection Agency has set forth new regulations that mandate greenhouse gas reporting in the U.S. carbon black industry. These regulations were the impetus for the development of a new ASTM International standard, ASTM D7633 , Test Method for Carbon Black Carbon Content. The new standard was developed by Subcommittee D24.66 on Environment, Health and Safety, part of ASTM…, ASTM Committee D24 Next Meeting:, Dec. 6-8, December Committee Week, New Orleans, La., Technical Contact:, George Joyce, Columbian Chemicals Co., Marietta, Ga., Phone: 770-792-9467; gjoyce@columbianchemicals.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 #8641
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An increased interest in the polyaromatic hydrocarbon content of carbon black, particularly in Europe, and new U.S. Environmental Protection Agency requirements to report greenhouse gas emissions from U.S. industry including carbon black plants has led to the formation of a new ASTM subcommittee. Subcommittee D24.66 on Environment, Health and Safety is part of ASTM International Committee D24 on…
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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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While the continuous quality verification concept is still quite new, it has the potential to become an important approach to assuring product quality in the pharmaceutical industry. With this in mind, ASTM International Committee E55 on Manufacture of Pharmaceutical Products has approved a new standard, E2537 , Guide for Application of Continuous Quality Verification to Pharmaceutical and…
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ASTM International Committee E55 on Manufacture of Pharmaceutical Products has developed a new standard that covers the life cycle of pharmaceutical and biopharmaceutical manufacturing systems. The new standard, E 2500 , Guide for Specification, Design and Verification of Pharmaceutical and Biopharmaceutical Manufacturing Systems and Equipment, is under the jurisdiction of Subcommittee E55.03 on…
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A recently approved revision to ASTM International standard C 150 , Specification for Portland Cement, includes three significant technical changes to the document. The changes are part of a joint effort between ASTM and the American Association of State and Highway and Transportation Officials to harmonize C 150 with AASHTO’s standard, M 85, Specification for Portland Cement. C 150 is under the…
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The ASTM International committee formerly known as E55 on Pharmaceutical Application of Process Analytical Technology has undergone a change in title and scope that reflects the intent of the committee to be more inclusive of all the tools, instrumentation and sciences that might be used by the industry in the management of pharmaceutical manufacturing processes. The committee is now known as E55…
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ASTM International Committee E55 on Pharmaceutical Application of Process Analytical Technology has now approved its first practice. ASTM E 2474 , Practice for Pharmaceutical Process Design Utilizing Processing Analytical Technology, is under the jurisdiction of Subcommittee E55.02 on PAT System Implementation and Practice. Practice E 2474 covers process design, which is integral to process…