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ASTM Pesticides Committee approves latest biofilm standard.
Press Release Summary:
Feb 24, 2009 - Developed by Committee E35 on Pesticides and Alternative Control Agents, Standard E2647 describes how to grow repeatable P. aeruginosa biofilm using drip flow biofilm reactor. Goal is to grow biofilm that is relevant to environment where disinfectant will be applied, then test disinfectant under real use conditions. Biofilm grown in drip flow reactor could represent biofilms found in cooling towers, produce sprayers, food processing conveyor belts, and in lungs infected with cystic fibrosis.
Original Press Release
ASTM International Pesticides Committees Approves Latest Biofilm Standard
Press release date: Feb 19, 2009
The new standard, E2647, Test Method for Quantification of a Pseudomonas aeruginosa Biofilm Grown Using a Drip Flow Biofilm Reactor with Low Shear and Continuous Flow, is under the jurisdiction of Subcommittee E35.15 on Antimicrobial Agents.
The standard describes how to grow a repeatable P. aeruginosa biofilm using a drip flow biofilm reactor. "The goal is to grow a biofilm that is relevant to the environment where a disinfectant will be applied, then test the disinfectant under real use conditions," says Darla Goeres, assistant research professor, Center for Biofilm Engineering, Montana State University, and an E35 member. Biofilm grown in a drip flow reactor could represent biofilms found in a wide variety of places, including cooling towers, produce sprayers, on food processing conveyor belts, on catheters and in lungs infected with cystic fibrosis.
"The primary user of this standard is any industrial, government and/or academic laboratory interested in conducting biofilm research," says Goeres. "In particular, the drip flow reactor has generated a lot of interest with companies and research laboratories interested in medically relevant biofilms." Goeres also notes that an important difference between bacteria in suspension and biofilm bacteria is that biofilm is tolerant to high concentrations of disinfectants or antibiotics.
Currently, E35.15 is working on a guide that will describe properties of the various biofilm growth methods and issues that must be considered when working with biofilm bacteria.
ASTM International standards are available for purchase from Customer Service (phone: 610-832-9585; email@example.com) or at www.astm.org.
For technical Information, contact Darla Goeres, Center for Biofilm Engineering, Montana State University, Bozeman, Mont. (phone: 406-994-2440; firstname.lastname@example.org). Committee E35 meets April 20-23 during April committee week in Vancouver, British Columbia, Canada.
ASTM International welcomes and encourages participation in the development of its standards. ASTM's open consensus process, using advanced Internet-based standards development tools, ensures worldwide access for all interested individuals. For more information on becoming an ASTM member, please contact Jennifer Rodgers, ASTM International (phone: 610-832-9694; email@example.com).
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