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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 revision to an important ASTM nanotechnology standard incorporates a large-scale interlaboratory study that took place in 2008. The revised standard, ASTM E2490 , Guide for Measurement of Particle Size Distribution of Nanomaterials in Suspension by Photon Correlation Spectroscopy (PCS), is under the jurisdiction of Subcommittee E56.02 on Characterization: Physical, Chemical and Toxicological…
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ASTM International Committee D27 on Electrical Insulating Liquids and Gases is continuing its work on standards for natural esters with the development of a proposed new standard, WK21616 , Test Method for Oxidation Induction Time of Natural Ester Insulating Fluids by Pressure (PDSC) or Regular Differential Scanning Calorimetry (DSC). The proposed standard was submitted under the jurisdiction of…
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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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A workshop on the role of standards in the emerging field of nanotechnology will be held Oct. 8-9, 2008, at the National Institute of Standards and Technology near Washington, D.C. The workshop, "Enabling Standards for Nanomaterial Characterization," is being co-sponsored by the National Cancer Institute's Nanotechnology Characterization Laboratory, the National Institute of Standards and…
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The battle against cancer is being fought on many fronts. Among the most cutting-edge research efforts are attempts to engineer nanotechnology-based therapies. To aid in this endeavor, the Nanotechnology Characterization Laboratory, part of the National Cancer Institute’s Alliance for Nanotechnology in Cancer and the National Cancer Institute at Frederick, has developed methods for nanoparticle…, E2524, , Test Method for Analysis of Hemolytic Properties of Nanoparticles, -E2524 is a protocol for examining the destruction of red blood cells (hemolysis) that can lead to anemia, jaundice and other issues. All intravenously administered drugs must be examined to determine potential for hemolysis. • , E2525, , Test Method for Evaluation of the Effect of Nanoparticulate Materials on the Formation of Mouse Granulocyte-Macrophage Colonies, -E2525 describes a method for evaluating nanoparticle stimulation or inhibition of the maturation of certain bone marrow cells (macrophages). A common side effect of anti-cancer drugs is inhibition of this process, and bone marrow cells may be particularly sensitive to nano-scale material. • , E2526, , Test Method for Evaluation of Cytotoxicity of Nanoparticulate Materials on Porcine Kidney Cells and Human Hepatocarcinoma Cells, -Because studies have indicated that many nanoparticles are cleared from the body through the kidney or liver, these organs are good choices for target organ toxicity evaluation. E2526 presents a method for evaluation of nanomaterial toxicity by examining effects on kidney and cancerous liver cells. Martin Fritts is senior principal scientist at the Nanotechnology Characterization Laboratory and…
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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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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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ASTM International Committee E56 on Nanotechnology has approved its first standard, E 2456 , Terminology for Nanotechnology. The new standard is under the jurisdiction of Subcommittee E56.01 on Terminology and Nomenclature. Because of the great need for a terminology document that is globally recognized and because of the cooperation of several organizations in making the document a reality,…