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A new ASTM International test method that provides standardization for a long-used test will aid in the use and evolution of geotextile bag technology. The new standard, ASTM D7701 , Test Method for Determining the Flow Rate of Water and Suspended Soils from a Geotextile Bag, was developed by Subcommittee D35.03 on Permeability and Filtration , part of ASTM International Committee D35 on…
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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 new ASTM International practice provides a standard for preparing a mixture of cement paste that will simulate the shearing experienced by the cement paste in concrete. The new standard, ASTM C1738 , Practice for High-Shear Mixing of Hydraulic Cement Pastes, was developed by Subcommittee C01.22 on Workability , part of ASTM International Committee C01 on Cement . According to Chiara Ferraris,…
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Laboratories that have the ability to analyze titanium and titanium alloys by spark-atomic emission spectrometry or glow discharge-AES are currently being sought to participate in an interlaboratory study for a proposed new standard. ASTM WK25738 , Test Method for Analysis of Titanium and Titanium Alloys by Spark-Atomic Emission/Glow Discharge-Atomic Emission Spectrometry, is currently being…, ASTM Committee E01 Next Meeting:, May 15-18, 2011, May Committee Week, Anaheim, Calif., Technical Contact:, Kevin VonScio, Perryman Co., Houston, Pa., Phone: 724-746-9390; kvonscio@perrymanco.com, ASTM Staff Contact:, Thomas O’Toole, Phone: 610-832-9739; totoole@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #8855
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Trona, or sodium sesquicarbonate, is a fine mineral powder that has proven to be effective at removing acid gases from air emissions. While trona can be a useful component of air pollution control systems, it can be difficult to handle, particularly when moisture is present. A proposed new ASTM standard will present a repeatable, precise and accurate test method for analyzing moisture levels in…, ASTM Committee E01 Next Meeting:, Nov. 14-17, November Committee Week, San Antonio, Texas, Technical Contact: J, ames D. Phillip, Solvay Chemicals Inc, Green River, Wyo., Phone: 307-872-6519; jim.phillip@solvay.com, ASTM Staff Contact:, Thomas O'Toole, Phone: 610-832-9739; totoole@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #8608
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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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Rapid hardening hydraulic cements are used in a variety of applications in which reduced cementitious contents are desired or early service is needed. Included among these applications are paving, construction, stucco, mortar and block. A newly approved ASTM International standard covering these cements, ASTM C1600/C1600M , Specification for Rapid Hardening Hydraulic Cement, has been developed by…, Type URH, —ultra rapid hardening, for use where ultra high early strength is desired;, Type VRH, —very rapid hardening, for use where very high early strength is desired;, Type MRH, —medium rapid hardening, for use where mid-range rapid hardening, high early strength is desired; and, Type GRH, —general rapid hardening, for use when the higher strength properties of Type VRH or a Type MRH cement is not required. “ASTM C1600 lists minimum requirements for compressive strength, setting time, shrinkage and soundness (autoclave expansion),” says Hicks. “Optional specifications for sulfate expansion, alkali silicate reactions with aggregates, heat of hydration and expansion in water are also…
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Test Method Covers Inductively Coupled Plasma Atomic Emission Spectrometry, A new ASTM International standard will help users properly prepare and analyze various nickel-based alloy samples by inductively coupled plasma emission spectrometry. The standard, ASTM E2594 , Test Method for Analysis of Nickel Alloys by Inductively Coupled Plasma Atomic Emission Spectrometry (Performance-Based Method), will assist users in preparing sample and calibration solutions and with…
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Advancing gas analysis technology is leading to the development of a proposed new ASTM International standard, WK22331 , Test Method for Simultaneous Determination of Oxygen, Nitrogen and Hydrogen in Titanium and Titanium Alloys by the Inert Gas Fusion Technique. Analyzers are now available that can simultaneously test titanium and titanium alloys for oxygen, nitrogen and hydrogen. This…
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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…