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ASTM International Subcommittee A01.05 on Steel Reinforcement has made a significant revision to ASTM A706/A706M , Specification for Low-Alloy Steel Deformed and Plain Bars for Concrete Reinforcement. A higher yield strength level, namely Grade 80 [550], has been added to the standard. The term “grade” relates to minimum yield strength in units of “kps/in.2 (megapascals),” i.e., “Grade 80 [550]”…
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ASTM Committee A01 on Steel, Stainless Steel and Related Alloys has now published a versatile new standard, A1064/A1064M , Specification for Steel Wire and Welded Wire Reinforcement, Plain and Deformed, for Concrete. The new standard is under the jurisdiction of Subcommittee A01.05 on Steel Reinforcement. Ted Mize, P.E., senior engineer, Ivy Steel & Wire, and an A01.05 member, notes that ASTM…, ASTM Committee A01 Next Meeting:, May 17-20, May Committee Week, St. Louis, Mo., Technical Contact:, Ted Mize, Ivy Steel & Wire, Concord, Calif., Phone: 925-685-9141, tmize@ivysteel.com, ASTM Staff Contact:, George Luciw, Phone: 610-832-9710, gluciw@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #844 3/Dec2009
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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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A type of lime that has been used in construction since ancient Roman times is now covered by an ASTM International standard. ASTM International Committee C07 on Lime has approved ASTM C1707 , Specification for Pozzolanic Hydraulic Lime for Structural Purposes. The new standard is under the jurisdiction of Subcommittee C07.02 on Specifications and Guidelines. According to Margaret Thomson, the…
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A new ASTM International standard will serve as a guide for manufacturers and laboratories that make and test steel products according to standards using the SI system of units. The new standard, ASTM A1058 , Test Methods for Mechanical Testing of Steel Products—Metric, arose from a need for a stand-alone metric steel testing standard, according to Lester Burgess, director of quality, TSP/U.S.…
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Providing customer reassurance that high performance corrosion resistant steel will meet a given set of criteria is the purpose of a new ASTM International standard recently approved by Committee A01 on Steel, Stainless Steel and Related Alloys. The new standard, ASTM A1055 , Specification for Zinc and Epoxy Dual Coated Steel Reinforcing Bars, is under the jurisdiction of Subcommittee A01.05 on…
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A proposed new ASTM International standard will provide a method for a comparative evaluation of limestone sources available for use in flue gas desulfurization (FGD) applications. The proposed standard, WK20129 , Test Method for Evaluating Limestone for Use in Wet Flue Gas Desulfurization Applications by Reactivity, is being developed by Subcommittee C07.05 on Chemical Tests, part of ASTM…
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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…