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Three proposed ASTM International standards will provide a base for the evaluation of the antimicrobial efficacy of solid copper materials. The proposed standards are being developed by Subcommittee B05.06, Methods of Test, part of ASTM International Committee B05 on Copper and Copper Alloys . The three proposed standards are: • ASTM WK42235 , Test Method for Efficacy of Copper Alloy Surfaces as…, ASTM Committee B05 Next Meeting:, Oct. 21-23, 2013, October Committee Week, Jacksonville, Fla., Technical Contact:, James H. Michel, Copper Development Association Inc., New York, N.Y., Phone: 212-251-7210; j ames.michel@copperalliance.us, ASTM Staff Contact:, Jennifer Rodgers, Phone: 610-832-9694; jrodgers@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #9439
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A proposed new ASTM International standard will be helpful to the construction industry in designing acoustic properties for buildings. ASTM WK37294 , Test Method for the Laboratory Measurement of Mechanical Impedance of Building Elements and Prediction of the Sound Transmission Loss Performance, is currently being developed by Subcommittee E33.03 on Sound Transmission , part of ASTM…, ASTM Committee E33 Next Meeting:, April 15-16, 2013, April Committee Week, Indianapolis, Ind., Technical Contact:, Peter Jackson, Ward Process, Holliston, Mass., Phone: 774-233-7011; p.jackson@aapusa.com, ASTM Staff Contact:, Steve Mawn, Phone: 610-832-9726; smawn@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org R elease #9316
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A newly approved ASTM copper standard focuses on the mechanical properties of machining brasses. ASTM B981/B981M , Specification for Low Leaded Brass Rod, Bar and Shapes, was developed by Subcommittee B05.02 on Rod, Bar, Wire, Shapes and Forgings , part of ASTM International Committee B05 on Copper and Copper Alloys . “Since 1997, there has been increasing legislation, regulation and voluntary…, ASTM Committee B05 Next Meeting:, April 15-17, 2013, April Committee Week, Indianapolis, Ind., Technical Contact:, Larry Muller, Chase Brass and Copper Co., Montpelier, Ohio, Phone: 419-485-8932; lmuller@chasebrass.com, ASTM Staff Contact:, Jennifer Rodgers, Phone: 610-832-9694; jrodgers@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org R elease #9307
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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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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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ASTM International Committee B05 on Copper and Copper Alloys has created a new task group, TG9018, which will be focused on the Antimicrobial Applications of Copper and Copper Alloys. The task group was formed following the U.S. Environmental Protection Agency's announcement of its registration of copper alloys as antimicrobial materials with specific health claims. According to James Michel,…
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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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A proposed new standard currently being developed by ASTM International Committee F01 on Electronics will prove to be useful to the tantalum sputtering target industry. The proposed standard, WK9490, Test Method for Reporting Crystallographic Orientation of Sputtering Target Materials, is under the jurisdiction of Subcommittee F01.17 on Sputter Metallization. "The tantalum sputtering target…
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ASTM International Committee F01 on Electronics is currently developing a proposed new standard that will provide uniformity in the values reported for oxygen content in aluminum alloys used for sputtering targets in the manufacture of integrated circuits. The proposed standard, WK9120, Determination of Oxygen in High Purity Aluminum and Alloys in High Purity Aluminum Base by Inert Gas Fusion…