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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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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…
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ASTM International Committee F01 on Electronics is currently developing a proposed new standard that will provide uniformity in the values reported for oxygen content in aluminum alloys used for sputtering targets in the manufacture of integrated circuits. The proposed standard, WK9120, Determination of Oxygen in High Purity Aluminum and Alloys in High Purity Aluminum Base by Inert Gas Fusion…
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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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Two newly approved ASTM standards are filling a gap that has existed for tests for battery separators. The new standards, D 7129, Test Method for Determination of Ammonia Trapping in a Grafted Battery Separator, and D 7131, Test Method for Determination of Ion Exchange Capacity (IEC) in a Grafted Battery Separator, are under the jurisdiction of Subcommittee D09.19 on Dielectric Sheet and Roll…
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ASTM International Subcommittee F01.11 has recently changed its name from Quality and Hardness Assurance to Nuclear and Space Radiation Effect. The subcommittee is under the jurisdiction of ASTM International Committee F01 on Electronics. According to William Alfonte, chair of F01.11, the title of the subcommittee has been changed to more accurately reflect the scope of its current and future…
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ASTM International Committee D09 on Electrical and Electronic Insulating Materials will host a presentation of the European Unions Restriction of Hazardous Substances (RoHS) Directive during their meeting in Philadelphia, Pa. on March 15. The meeting will run from 3:00 to 5:00 p.m. and will be followed by a social hour. Electrical equipment marketed in the EU after July 1, 2006, must comply…
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ASTM International Committee F01 on Electronics is currently seeking participation for any interested parties in the development of a proposed new standard, WK6499, Test Method for Determining Sputtering Target Utilization. The proposed new standard is under the jurisdiction of Subcommittee F01.17 on Sputter Metallization. Target utilization is the amount of target material that is available for…