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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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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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ASTM International Committee D30 on Composite Materials invites all interested parties to participate in a new task group on fiber-reinforced polymers. The task group is under the jurisdiction of Subcommittee D30.05 on Structural Test Methods. The purpose of the new task group is to review a series of tests that the American Concrete Institute has developed through their Committee 440 on Fiber-…
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, New ASTM Committee to Develop Standards That Will Facilitate New System Designs and Industry Growth, ASTM International, one of the largest voluntary standards development organizations (SDOs) in the world, today announced the formation of ASTM Committee F41 on Unmanned Undersea Vehicle (UUV) Systems. This important standards initiative was driven by the cooperative efforts of the United States Navy and UUV industry stakeholders to facilitate new UUV system designs and enable next-generation…, Critical Role in Oceanographic Research, Commercial and Military Applications, UUVs have a notable history dating back to the early 1980s. Early systems built on their manned submersible predecessors and helped transform oceanographic research during the decade. Used by the academic community in notable deep-sea expeditions, such as the discovery and exploration of the wreck of the Titanic, UUVs have played a critical role in ocean surveying, environmental monitoring, and…, UUV Growth and Evolution: ASTM Standards Will Help Lead the Way, Todays UUV industry includes two classes of systems: remotely operated vehicles (ROVs), which are attached to a mother-ship by a long cable; and autonomous underwater vehicles (AUVs), which operate without a tether. To better meet the challenges of emerging applications, existing UUV systems must evolve with new technology. Specific areas of need include greater interoperability among…, Fast and Efficient Standards Development Through the ASTM Process, Led by the Association for Unmanned Vehicle Systems International (AUVSI), the premier trade association for the unmanned systems industry, UUV stakeholders selected ASTM International as the SDO best suited for the development of new international industry standards. With a proven consensus process and state-of-the-art standards development infrastructure, ASTM International was best positioned…, Public/Private Sector Collaboration under the ASTM Umbrella, ASTM Committee F41 is another example of the long-standing partnership between the public and private sectors in developing consensus standards under the ASTM International process. F41 brings together technical experts from the UUV industry, federal government, trade associations and academia to develop voluntary consensus standards pertaining to UUV design, safety and performance including…
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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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A questionnaire sent to members of ASTM International Committee D30 on Composite Materials proved to be the catalyst for a pair of newly approved standards, D 7136, Test Method Measuring the Damage Resistance of a Fiber-Reinforced Polymer Matrix Composite to a Drop-Weight Impact Event, and D 7137, Test Method for Compressive Residual Strength Properties of Damaged Polymer Matrix Composite Plates…
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ASTM International standard D 1555, Test Method for Calculation of Volume and Weight of Industrial Aromatic Hydrocarbons and Cyclohexane, and its metric equivalent, D 1555M, have been revised by Committee D16 on Aromatic Hydrocarbons and Related Chemicals. The revision affects the basis for correcting volume from any temperature to 60 F (or 15 C using D 1555M), as well as calculating the weight…