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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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First generation gonioapparent colorants are materials pigmented with metal flakes that change lightness as illumination angles change. Used heavily in automotive coatings, the first generation of gonioapparent materials was covered by ASTM International standard E2194 , Practice for Multiangle Color Measurement of Metal Flake Pigmented Materials, first published in 2003. Now, a second generation…
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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 participate in the standards developing activities of ASTM International Committee F20 on Hazardous Substances and Oil Spill Response. Among the committee’s recent activities are the approval of a new standard on oil spill containment booms and work on a proposed standard on the use of in-situ burning of oil spill in marshes. Manufacturers of containment…
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ASTM International Committee E12 on Color and Appearance has approved a new standard that describes techniques for planning and analyzing the results of an interlaboratory study conducted for certain test methods within E12. E 2480 , Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method with Multi-Valued Measurands, is under the jurisdiction of Subcommittee…
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Biofilm, self-organized communities of bacteria that can have both positive and negative effects in a variety of industries, is the subject of a new ASTM International standard, E 2562 , Test Method for Quantification of Pseudomonas aeruginosa Biofilm Grown with High Shear and Continuous Flow Using CDC Biofilm Reactor. The new standard is under the jurisdiction of Subcommittee E35.15 on…
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Navies and coast guards around the world will be the likely users of a new standard developed by ASTM International Committee F20 on Hazardous Substances and Oil Spill Response, F 2533 , Guide for In-Situ Burning of Oil in Ships or Other Vessels. The standard, under the jurisdiction of Subcommittee F20.15 on In-Situ Burning, covers the use of in-situ burning directly in ships and other vessels as…
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Responding to a new emphasis by regulatory agencies that firms manufacturing drug products demonstrate the efficacy of disinfectants used in controlled environments, ASTM International Committee E35 on Pesticides and Alternative Control Agents has begun to develop a proposed new standard, WK12880 , Guide for Evaluation of Clean Room Disinfectants. WK12880 is under the jurisdiction of Subcommittee…
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A new ASTM International standard provides information and criteria for estimating the thickness of oil on water using only visual clues. The standard, F 2534 , Guide for Visually Estimating Oil Spill Thickness on Water, was developed by Subcommittee F20.16 on Surveillance and Tracking to provide a consistent means of visual oil spill thickness detection. Subcommittee F20.16 is under the…
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Over the last three years, single-point spray systems have emerged as a leading form of oil spill dispersant, which has led to the development of a new standard by ASTM International Committee F20 on Hazardous Substances and Oil Spill Response. The standard, F 2465, Guide for Oil Spill Dispersant Application Equipment: Single-Point Spray Systems, is under the jurisdiction of Subcommittee F20.13…