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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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A proposed new ASTM International standard, WK14283 , Guide for Green Roof Systems, will identify terminology, principles and concepts related to the construction of vegetated green roof systems. The proposed standard is being developed by Subcommittee E06.71 on Sustainability, part of ASTM International Committee E06 on Performance of Buildings. “We are trying to develop a suite of relevant…
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ASTM International Committee E06 on Performance of Buildings has approved a new practice that will help developers and builders to better estimate the cost of a construction project. The new standard, E 2514 , Practice for Presentation Format of Elemental Cost Estimates, Summaries, and Analyses, is under the jurisdiction of Subcommittee E06.81 on Building Economics. “Numerous examples of…
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Two new standards have recently been approved by ASTM International Committee D04 on Road and Paving Materials. The standards, both of which are under the jurisdiction of Subcommittee D04.26 on Fundamental/Mechanistic Tests, are D 6931 , Test Method for Indirect Tensile (IDT) Strength of Bituminous Mixtures, and D 7312 , Test Method for Determining the Permanent Shear Strain and Complex Shear…, ASTM D 6931, Test Method for Indirect Tensile (IDT) Strength of Bituminous Mixtures, The withdrawal of D 4123 , Test Method for Indirect Tension Test for Resilient Modulus of Bituminous Mixtures, led to the development of D 6931 , since D 4123 contained a description of an indirect tensile strength test that was referred to in several other standards. It was decided to develop this test into a completely separate standard, D 6931, to stand on its own merit as a method that…, ASTM D 7312, Test Method for Determining the Permanent Shear Strain and Complex Shear Modulus of Asphalt Mixtures Using the Superpave Shear Tester (SST), According to Rebecca McDaniel, technical director, North Central Superpave Center, and leader of the D 7312 task group, Superpave is a system for designing asphalt mixtures to ensure that the right asphalt binder and aggregate structure is used for the traffic and climate where it will be placed on the road. To facilitate the implementation of Superpave, the Federal Highway Administration…
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A new ASTM International standard is focused on equipment that will allow for the emergency evacuation of people who are not able to use standard exit facilities in high-rise buildings. The standard, E 2484 , Specification for High-Rise Building External Evacuation Controlled Descent Devices, was developed by Subcommittee E06.77 on High Rise Building External Evacuation Devices, under the…
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Using a new ASTM standard will improve communication among the many stakeholders that are involved in preparing, evaluating and using cost estimates for new construction projects. The standard, E 2516 , Classification for Cost Estimate Classification System, was developed by Subcommittee E06.81 on Building Economics, which is part of ASTM International Committee E06 on Performance of Buildings…
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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 will provide paving contactors and producers with instructions for preparing cold mix asphalt samples for testing. The standard, D 7229 , Test Method for Preparation and Determination of the Bulk Specific Gravity of Dense-Graded Cold Mix Asphalt (CMA) Specimens by Means of the Superpave Gyratory Compactor, was developed by Subcommittee D04.27 on Cold Mix Asphalts…
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ASTM Subcommittee E06.77 on High-Rise Building External Evacuation Devices is seeking interested persons to participate in standards activity that is focused on egress in emergency situations occurring in multi-story buildings, as well as on the ability of emergency personnel to respond effectively and access fires or other emergencies on higher floors. Committee E06 on Performance of Buildings…
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An important new ASTM International standard recently approved by Committee E06 on Performance of Buildings is the first of its kind to focus on determining the resistance of annealed architectural glass to thermally induced stresses caused by exposure to sun and shadows. The standard, E 2431 , Practice for Determining the Resistance of Single Glazed Annealed Architectural Flat Glass to Thermal…