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ASTM International Committee D35 on Geosynthetics is currently developing a proposed new standard that covers the test procedure for evaluating the effectiveness of prefabricated vertical drains to enhance the consolidation of soils under specified conditions. The proposed standard, WK13402 , Test Method for Large Scale Consolidation Test for Prefabricated Vertical Drains, is under the…
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The increased use of geomembranes as barrier materials to restrict liquid migration from one location to another created a need for a test method to evaluate the quality of geomembrane seams produced by tape methods. ASTM International Committee D35 on Geosynthetics has met this need with the approval of the new standard D 7272 , Test Method for Determining the Integrity of Seams Used in Joining…
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A new standard developed by ASTM International Committee F37 on Light Sport Aircraft covers the instructions a kit producer must provide to a consumer regarding how to assemble and safely flight-test a recreational aircraft to ensure compliance with applicable ASTM standards. The new standard, F 2563 , Practice for Kit Assembly Instructions of Aircraft Intended Primarily for Recreation, is under…
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ASTM International Committee D35 on Geosynthetics has developed a new standard that is an important step toward the improvement of filtration design for non-woven geotextiles. The standard, D 7178 , Practice for Determining the Number of Constrictions “, m, ” of Non-Woven Geotextiles as a Complementary Filtration Property, will provide engineers and researchers a common basis for accurate determination of an important products property. Practice D 7178 is under the jurisdiction of Subcommittee D35.03 on Permeability and Filtration. Practice D 7178 describes the procedure used along with existing test methods to determine the number of…
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A process hazard analysis prior to the startup of a chemical processing facility is essential to prevent catastrophic incidents due to thermal runaway reactions. A proposed new ASTM standard, WK9584, Guide for Assessing Potential Hazards of Synthesis Reactions Using Reaction Calorimetry, will help to standardize how the results from reaction calorimetry experiments are used in a process hazard…
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Executives from the Federal Aviation Administration (FAA) met with ASTM International members and staff at this years Airventure - a premier show and convention in the aviation world, hosted by the Experimental Aircraft Association (EAA). The briefing provided an update to the FAA on the status of ASTMs standards initiatives in the aviation sector. Among the representatives for the…
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ASTM Committee D35 on Geosynthetics will present a workshop on the possibility of creating a Geogrid Aperture Stability standard during the June Committee Week in Reno, Nev. The workshop will take place June 15 from 6:00 p.m. to 7:30 p.m. Steve Valero, Vice President - Technology, Tensar, will chair the workshop. Valero promises a productive and lively workshop that will be focused on educating…
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For the first time, the Federal Aviation Administration (FAA) has used consensus standards for aircraft design, manufacturing, and maintenance with the acceptance of 15 standards developed by ASTM International Committee F37 on Light Sport Aircraft. The referenced documents, which have been worked on over the last two years, affect fixed-wing airplanes, powered parachutes, gyroplanes, lighter-…