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Polymer matrix composites are widely used in a variety of civil engineering projects, including highway construction and concrete pavements. ASTM Subcommittees D30.05 on Structural Test Methods and D30.06 on Interlaminar Properties are both working on proposed new standards that involve fiber reinforced polymer matrix composites. The subcommittees are under the jurisdiction of ASTM International…
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Biofilm, which is defined as microorganisms living in a self-organized cooperative community, is still under the radar for many industry, medical, professional and regulatory agencies. A newly approved ASTM International standard is the latest in a series of biofilm standards being developed by Committee E35 on Pesticides and Alternative Control Agents. The new standard, E2647 , Test Method for…
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Requests from industry to develop a standard practice for determining the total cost of ownership for commercial food service equipment have led to the formation of F26.05 on Life Cycle Cost, a subcommittee of ASTM International Committee F26 on Food Service Equipment. “An industry standard for analyzing the life cost of commercial food service equipment is needed to help the industry address…
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ASTM International Committee E35 on Pesticides and Alternative Control Agents has now published the last in a series of three ASTM International standards that address the activity of hand hygiene agents against microbes that can be transmitted via contaminated hands. Subcommittee E35.15 on Antimicrobial Agents developed the new standard, ASTM E2613 , Test Method for Determining Fungus-…
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ASTM International Committee E35 on Pesticides and Alternative Control Agents has begun work on the latest in a series of standards on biofilm. The proposed new standard, WK17813 , Test Method for Quantification of a, Pseudomonas aeruginosa, Biofilm Grown with Low Shear and Continuous Flow Using a Drip Flow Biofilm Reactor, is being developed by Subcommittee E35.15 on Antimicrobial Agents. According to Darla M. Goeres, senior research engineer, Center for Biofilm Engineering, and E35 member, biofilm is defined as microorganisms living in a self-organized cooperative community. These communities, which are embedded in slime and can be…, Pseudomonas aeruginosa, Biofilm Grown with High Shear and Continuous Flow Using CDC Biofilm Reactor; and E2196 , Test Method for Quantification of a, Pseudomonas aeruginosa, Biofilm Grown with Shear and Continuous Flow Using a Rotating Disk Reactor) is that biofilm is grown under low fluid shear close to the air/liquid interface and that the drip flow reactor is a plug flow reactor system, resulting in biofilm that is visible to the naked eye and smooth and slimy in appearance. Biofilm generated in a drip flow reactor could represent those found in a wide spectrum of…
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All interested parties are invited to attend a Sandwich Construction Workshop on Wednesday, March 12, at 4:30 p.m., in Melbourne, Fla. The workshop is being held by Subcommittee D30.09 on Sandwich Construction, part of ASTM International Committee D30 on Composite Materials. Committee D30 is meeting in conjunction with Marine Applications of Composite Materials from March 12-14 at the Crowne…
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A new ASTM International standard will enable composite end users and materials suppliers within the aerospace industry to perform an important test for polymer matrix composites within guidelines set by the U.S. Federal Aviation Administration. The standard, D7028 , Test Method for Glass Transition Temperature (DMA Tg) of Polymer Matrix Composites by Dynamic Mechanical Analysis (DMA), is under…
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A pair of new ASTM International standards developed by ASTM International Committee F26 on Food Service Equipment will be used to replace U.S. Department of Defense military standards. Subcommittee F26.04 on Mechanical Preparation Equipment developed the standards, F 2645 , Specification for Bun Slicing Machines, and F 2646 , Specification for Bread Slicing Machines. According to Richard…
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Subcommittee D30.05 on Structural Test Methods, part of ASTM International Committee D30 on Composite Materials, has been standardizing a series of methods that are related to the analysis and substantiation of mechanically fastened joints composed of composite materials. The latest in this series of standards, D 7332/D 7332M , Test Method for Measuring the Fastener Pull-Through Resistance of a…
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The heating performance and energy consumption of commercial radiant patio heaters is the subject of a new ASTM International standard. F 2644 , Test Method for Performance of Commercial Patio Heaters, was developed by Subcommittee F26.06 on Energy and Productivity Protocols, which is part of ASTM International Committee F26 on Food Service Equipment. The new standard was originally developed…