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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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Vapor intrusion from contaminated soil and groundwater into structures can potentially create significant liability and have a material impact on property value. Because of this, accurately determining whether a property has vapor intrusion issues is a concern for property owners, prospective purchasers and environmental professionals conducting due diligence. ASTM International Committee E50 on…
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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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Information on light nonaqueous-phase liquids and their impact on the environment has grown significantly in the last 20 years. This accumulation of knowledge means that different remediation strategies are now available for sites that contain these substances. In order to facilitate decision making, ASTM International Committee E50 on Environmental Assessment has developed a new standard, E 2531…
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ASTM International Committee E50 on Environmental Assessment, Risk Management, and Corrective Action is seeking participation in the development of a proposed new standard, WK15256, Guide for Investigation of Petroleum Underground Storage Tank Equipment Problems and Releases. The proposed guide, under the jurisdiction of Subcommittee E50.04 on Corrective Action, is intended to assist with the…
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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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Mold, or even the prospect of mold, can create a level of fear and misperception that can have a significant negative impact on all phases of the real estate market. However, in an effort to replace fear with facts, ASTM International’s Committee E50 on Environmental Assessment, Risk Management, and Corrective Action has developed a new standard, E 2418 , Guide for Readily Observable Mold and…
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An ASTM International environmental assessment standard has recently undergone major revisions to reflect relevant changes in federal law. The standard, E 1528 , Practice for Limited Environmental Due Diligence: Transaction Screen Process, is under the jurisdiction of Subcommittee E50.02 on Real Estate Assessment and Management, which is part of ASTM International Committee E50 on Environmental…
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ASTM Committee E50 on Environmental Assessment, Risk Management and Corrective Action is seeking all interested parties, particularly landowners and developers, to contribute to the development of a proposed new standard on continuing obligations. The proposed standard, WK9354, Practice for Landowner Appropriate Care of a Contaminated Property, is under the jurisdiction of Subcommittee E50.02 on…
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A proposed new standard currently being developed by ASTM International Committee F01 on Electronics will prove to be useful to the tantalum sputtering target industry. The proposed standard, WK9490, Test Method for Reporting Crystallographic Orientation of Sputtering Target Materials, is under the jurisdiction of Subcommittee F01.17 on Sputter Metallization. "The tantalum sputtering target…