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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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Interested parties are invited to join in the development of a new proposed standard being developed by ASTM International Committee E11 on Quality and Statistics . ASTM WK32565 , Guide for the Use of Non-Parametric Statistical Methods, is under the jurisdiction of Subcommittee E11.10 on Sampling/Statistics . According to Stephen Luko, statistician, Hamilton Sundstrand, Shared Engineering…, ASTM Committee E11 Next Meeting:, Oct. 26-28, 2011, ASTM International Headquarters, West Conshohocken, Pa., Technical Contact:, Stephen N. Luko, Hamilton Sunstrand, Shared Engineering Services, Windsor Locks, Conn., Phone: 860-654-3447; stephen.luko@hs.utc.com, ASTM Staff Contact:, Christine Sierk, Phone: 610-832-9728; csierk@astm.org Release #8978
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Halon 1211 is employed in hand-held fire extinguishers on civilian aircraft. A new ASTM International standard will be used to test Halon 1211 to ensure that the product will provide the required level of fire protection and is free of harmful impurities that could affect its safety in use. ASTM D7673 , Specification for Halon 1211, Bromochlorodifluoromethane (CF2BrCl), was developed by…, ASTM Committee D26 Next Meeting:, June 15, 2011, June Committee Week, Anaheim, Calif., Technical Contact:, Mark L. Robin, DuPont Fluoroproducts, Wilmington, Del., Phone: 302-999-5002; mark.l.robin@usa.dupont.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 Release #8791
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Measurement systems analysis is an important topic in statistics and quality for engineering, manufacturing, laboratory practice and business process applications. A new ASTM International standard, ASTM E2782 , Guide for Measurement Systems Analysis (MSA), covers many core issues of MSA. ASTM E2782 was developed by Subcommittee E11.20 on Test Method Evaluation and Quality Control, under the…
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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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Producers of fluorocarbons are invited to join in the ongoing standards developing activities of ASTM International Committee D26 on Halogenated Organic Solvents and Fire Extinguishing Agents. The committee has recently approved a new standard, ASTM D7509 , Specification for Fluorocarbon Feedstock Grade Chloroform, under the jurisdiction of Subcommittee D26.08 on Halogenated Organics Used as…
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With the proposed new standard, WK11023 , Practice for Life and Reliability Testing Based on the Exponential Distribution, ASTM International Committee E11 on Quality and Statistics is continuing its program of preserving U.S. government military standards on acceptance sampling. WK11023 is an adaptation of the DoD quality control and reliability handbook document H-108, Sampling Procedures and…
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Finding ways to assure the quality and safe handling of fire extinguishing agents has led to the development of two new ASTM International standards, D 7323 , Practice for Handling, Transportation and Storage of IG-100 (Nitrogen), and D 7325 , Practice for Handling, Transportation and Storage of IG-541, N2, Ar, CO2. The new standards were developed by Subcommittee D26.09 on Fire Extinguishing…
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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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Providing users with an assurance of quality and ensuring the safe handling, transport and storage of fire extinguishing agents are the purposes of a new ASTM International standard, D 7327 , Specification for HFC Blend B (CH2FCF3, CHF2CF3 and CO2). The new standard was developed by Subcommittee D26.09 on Fire Extinguishing Agents, which is part of ASTM International Committee D26 on Halogenated…