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Regulatory agencies may soon require buffer zones around sprayed farm fields. A proposed ASTM International standard will be used to measure the drift reduction performance of tank mix adjuvants designed to reduce spray drift during the application of pesticides. Farmers can decrease the size of these buffer zones by using these adjuvants. ASTM WK27419 , Test Method for Characterization of…
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The U.S. Environmental Protection Agency registered 282 copper alloys as antimicrobial materials with public health claims in February 2008. Now, test methods developed in discussions between the EPA and the Copper Development Association during the registration process are being developed as proposed ASTM International standards. Subcommittee E35.15 on Antimicrobial Agents, part of ASTM…, ASTM Committee E35 Next Meeting:, April 19-22, April committee week, St. Louis, Mo., Technical Contact:, James H. Michel, Copper Development Association Inc., New York, N.Y., Phone: 212-251-7210; jmichel@cda.copper.org, 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 #8 508/Feb2010
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Outbreaks of the H1N1 influenza this year have increased the public’s awareness and use of leave-on hand antiseptics, popularly known as hand sanitizers. ASTM International Committee E35 on Pesticides and Alternative Control Agents is now developing a proposed new standard that will measure the antibacterial activity of hand sanitizers on people’s hands. ASTM WK23789 , Test Method for Evaluation…
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ASTM International has published a new American National Standard, ASTM E2659 , Standard Practice for Certificate Programs. This standard provides much-needed guidance to certificate issuers on how to develop a quality certificate program and to consumers on how to identify such a program. In addition, the standard is designed to serve as the benchmark of quality for industry accreditation of…
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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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Honeycomb ceramics, porous with linear hollow channels, are being used worldwide in automotive catalytic converters and as diesel particulate filters for trucks. Flexural testing of this type of ceramics is addressed in a new ASTM International standard, ASTM C1674 , Test Method for Flexural Strength of Advanced Ceramics with Engineered Porosity (Honeycomb Cellular Channels) at Ambient…
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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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All interested parties are invited to attend the first meeting of ASTM International Subcommittee E36.30 on Personnel Certificate Programs on June 23 at the Hyatt Regency Convention Center in Denver, Colo. The new subcommittee is part of ASTM International Committee E36 on Laboratory and Inspection Agency Accreditation, which will be meeting in Denver June 23-24. ASTM Subcommittee E36.30 will…
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New Advanced Ceramics Standards from ASTM Cover Fracture Mirror Size Analysis, Tensile Strength DataSubcommittee C28.01 on Mechanical Properties and Performance, part of ASTM International Committee C28 on Advanced Ceramics, has recently approved two new standards, ASTM C1678 , Practice for Fractographic Analysis of Fracture Mirror Sizes in Ceramics and Glasses, and ASTM C1683 , Practice for Size Scaling of Tensile Strengths Using Weibull Statistics for Advanced Ceramics., ASTM C1678 —Bringing Consistency to Fracture Mirror Size Analysis, Fracture mirror size analysis is a powerful quantitative tool for the interpretation of broken ceramic and glass articles. While this type of analysis can be used to determine the stress in a part at the instant of fracture, inspection and interpretation procedures have often varied, resulting in uncertainty in stress estimates. ASTM C1678, Practice for Fractographic Analysis of Fracture Mirror…, ASTM C1683 —Scaling Strength Values, ASTM C1683, Practice for Size Scaling of Tensile Strength Using Weibull Statistics for Advanced Ceramics, provides methodology to convert fracture strength parameters estimated from data obtained with one test geometry to strength parameters representing other test geometries. Stephen Duffy, chair of civil engineering, Cleveland State University, and C28 member, says that companies producing…
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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…