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A new ASTM International practice standardizes a geoelectric method used to detect potential leaks in exposed electrically isolating membranes in the field in containment applications. The new standard, ASTM D7703 , Practice for Electrical Leak Location on Exposed Geomembranes Using the Water Lance System, is under the jurisdiction of Subcommittee D35.10 on Geomembranes , part of ASTM…, ASTM Committee D35 Next Meeting:, Feb. 1-3, 2012, January Committee Week, Atlanta, Ga., Technical Contact:, Tim Bauters, Ph.D., Golder Associates Inc., Sunnyvale, Calif., Phone: 408-220-9223; tim_bauters@golder.com, ASTM Staff Contact:, Christine Sierk, Phone: 610-832-9728; csierk@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #9007
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A need for a scientifically based procedure to identify equivalent test severity conditions between a 1.707-m diameter laboratory roadwheel surface and a flat or highway surface for radial pneumatic light truck tires has led to the development and approval of a new ASTM International standard. The new standard, ASTM F2869 , Practice for Radial Light Truck Tires to Establish Equivalent Test…
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In the Transportation Recall Enhancement, Accountability and Documentation Act, the U.S. Congress indicated the need for an aging test on light vehicle tires. Since no industry or government standard addressed this subject, ASTM Committee F09 on Tires developed ASTM F2838 , Practice for Accelerated Laboratory Aging of Radial Passenger Car and Light Truck Tire Through Load Range E for the…
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The purpose of a laboratory roadwheel test is to realistically evaluate tires for specific road conditions. To facilitate such tests, ASTM International Committee F09 on Tires has developed a practice to provide an industry standard for commercial radial truck-bus tire laboratory temperature algorithms. The algorithms equilibrate with flat surface (highway) operating temperatures to determine…
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Two new ASTM International standards will aid in the recent national movement to develop a mechanistic-empirical design guide for pavements. The new standards, developed by ASTM International Committee D35 on Geosynthetics, will each cover quantification of fundamental material properties for pavement components. The standards, ASTM D7499 , Test Method for Measuring Geosynthetic-Soil Resilient…, ASTM Committee D35 Next Meeting:, Feb 2-4, 2011, January Committee Week, Baltimore, Md., Technical Contact:, Eli Cuelho, Western Transportation Institute, Montana State University, Bozeman, Mont.; Phone: 406-994-7886; elic@coe.montana.edu, ASTM Staff Contact:, Christine Basile, Phone: 610-832-9728, cbasile@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #8605
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A rim slip performance test for tires that has been done at the Nevada Automotive Test Center for more than 20 years has now become an ASTM International standard. ASTM F2803 , Test Method for Evaluating Rim Slip Performance of Tires and Wheels, was developed by Subcommittee F09.20 on Vehicular Testing, part of ASTM International Committee F09 on Tires. Rim slip occurs when tire and wheel…, ASTM Committee F09 Next Meeting:, April 21-22, April committee week, St. Louis, Mo., Technical Contact:, Jason Whiteley, Nevada Automotive Test Center, Silver Springs, Nev., Phone: 775-629-2000, jwhiteley@natc-ht.com, ASTM Staff Contact:, Rick Lake, Phone: 610-832-9689; rlake@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #8494/Feb2010
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A new ASTM standard developed by ASTM International Committee D35 on Geosynthetics fills a need for an internationally recognized standard to ensure that EPDM sheet material received by customers is consistent regardless of the manufacturer. The new standard, D7465 , Specification for Ethylene Propylene Diene Terpolymer (EPDM) Sheet Used in Geomembrane Applications, is under the jurisdiction of…
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ASTM International Committee D35 on Geosynthetics invites all interested parties to participate in the development of a proposed new standard, WK15082 , Specification for Measuring the Asperity Height of Textured Geomembrane. The proposed standard is being developed by Subcommittee D35.10 on Geomembranes. Although asperity height is specified throughout the geosynthetic industry, a procedure to…
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Three subcommittees of ASTM International Committee D35 on Geosynthetics are currently developing several proposed new standards. The topics covered in the following proposed standards are geosynthetic clay liners, geomembranes, and the development of a mechanistic-empirical design guide for pavements. Committee D35 will meet Jan. 30-Feb. 1, 2008, at the January Committee Week in Tampa, Fla.…, Subcommittee D35.04 on Geosynthetic Clay Liners, Responding to shrinkage issues involving geosynthetic clay liners, Subcommittee D35.04 has launched work on a proposed new standard, WK12239 , Test Method for Linear Dimensional Changes of Restrained Geosynthetic Clay Liners Under Cyclic Temperature and Hydration Conditions. WK12239 is an index test that covers the measurement of changes in linear dimensions of a geosynthetic clay liner that…, Subcommittee D35.10 on Geomembranes, Subcommittee D35.10 is currently developing two proposed new standards, WK14305 , Specification for Non-Reinforced PVC (Polyvinyl Chloride) Geomembrane Seams, and WK14311 , Guide for the Installation of Non-Reinforced Polyvinyl Chloride (PVC) Geomembranes. According to Mark Wolschon, engineers, specification writers, users, suppliers, manufacturers, fabricators and installers of PVC…, Subcommittee D35.01 on Mechanical Properties, There is currently a national movement to develop a mechanistic-empirical design guide for pavements. This initiative requires that the fundamental material properties for all components of the design be quantified. Subcommittee D35.01 is working toward this goal with the development of two proposed new standards, WK14361 , Test Method for Determining Small-Strain Tensile Properties of Geogrids…
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Measuring the performance of a new standard reference test tire (SRTT) in a variety of situations is the purpose of a new ASTM International standard, F 2493 , Specification for P225/60R16 97S Radial Standard Reference Test Tire. The standard, which was developed by Subcommittee F09.20 on Vehicular Testing, is under the jurisdiction of ASTM International Committee F09 on Tires. F 2493 is a…