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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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Technical advancements in both tissue engineering and bone substitute materials have resulted in a great increase in the number of tissue-engineered medical products available on the market. Many of these new products are mineral-based, often using calcium phosphate scaffolds. While there are some general standards on scaffolds in tissue-engineered medical products, a comprehensive standard on…
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ASTM International Committee F04 on Medical and Surgical Materials and Devices is developing a proposed new standard that will help the medical device industry with the measurement and reporting of vascular stent radial stiffness and strength. The proposed standard, WK15227 , Test Methods for Radial Stiffness and Strength of Balloon Expandable Stents, is under the jurisdiction of Subcommittee F04…
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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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Since 1998, when ASTM International Committee F05 on Business Imaging Products first approved standard F 1856 , Practice for Determining Toner Usage for Printer Cartridges, there has been a rapid increase in the use of color in office printing. In order to address this important change, Subcommittee F05.04 on Electrostatic Imaging Products has developed F 2632 , Practice for Determining the Toner…
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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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Understanding how blood within a human body will interact with any substance with which it comes in contact is a crucial part of any medical process. A new practice recently approved by ASTM International Committee F04 on Medical and Surgical Materials and Devices is one of a series of standards that evaluates the complement activating properties of solid materials intended for use in contact…
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The ability to determine the number of pages an ink jet printer cartridge will print in its lifetime is essential for anyone who manufactures or remanufactures them. A new ASTM International standard, F 2555 , Practice for Determining Page Yield of Ink Jet Printer Cartridges — Continuous Printing Method, has been developed to aid in this endeavor. Practice F 2555 is under the jurisdiction of…
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A new standard, developed by ASTM International Committee F04 on Medical and Surgical Materials and Devices, establishes performance requirements for single-use, enteral feeding devices with retention balloons. These devices are used by medical professionals to provide nutrition or administer medication to patients through a natural orifice (nasal, oral, transluminal) or through a surgically…
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ASTM International Committee F05 on Business Imaging Products is currently seeking participation in the development of proposed new standards under the jurisdiction of Subcommittee F05.07 on Ink Jet Imaging Products. Users, original equipment manufacturers and ink producers are needed to assist in the following task groups: F05.07.01 This task group is working on developing a user-friendly…