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Public policy decisions on rare earth materials will have an influence on industry and affect future standardization efforts. Acknowledging this importance, ASTM International Committee F40 on Declarable Substances in Materials has formed a new subcommittee, F40.04 on Rare Earth Materials. The subcommittee, which will promote knowledge, stimulate research and implement technology through the…, ASTM Committee F40 Next Meeting:, Nov. 14-15, 2012, November Committee Week, Atlanta, Ga., Technical Contact:, Taco van der Maten, PANalytical B.V., Almelo, The Netherlands, Phone: +31-546-534-372; taco.van.der.maten@panalytical.com, ASTM Staff Contact:, Alyson Fick, Phone: 832-9710; afick@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org R elease #9309
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Current members of ASTM International Committees C01 on Cement and C09 on Concrete and Concrete Aggregates , and other interested parties, are invited to join a new C01 subcommittee, C01.98 on Sustainability Assessment. The scope of C01.98 is to support the development and maintenance of standards related to methodologies and metrics for assessing sustainability in the manufacture and use of…
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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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ASTM grain size is a property written into many specifications for metals, with finer grain sizes generally indicating better mechanical properties, such as formability. While measuring certain materials for such properties can be difficult, electron backscatter diffraction can provide precise determinations as well as give information on grain size distribution and statistics. A new ASTM…
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A new ASTM International standard will provide the means to quickly detect and quantify the lead concentration in toys and other children's products. The new standard, F2853 , Test Method for Determination of Lead in Paint Layers and Similar Coatings or in Substrates and Homogenous Materials by Energy Dispersive X-Ray Fluorescence Spectrometry Using Multiple Monochromatic Excitation Beams, was…
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A recent revision to ASTM International standard E384 , Test Method for Knoop and Vickers Hardness of Materials, expands the range of its coverage. The standard is under the jurisdiction of Subcommittee E04.05 on Microindentation Hardness Testing, part of ASTM International Committee E04 on Metallography. The revision incorporates ASTM E92 , Test Method for Vickers Hardness of Metallic Materials…
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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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The presence of lead in toys and other consumer products continues to make headlines. The Consumer Product Safety Improvement Act, a United States law enacted in August 2008, addresses the lead issue and makes provisions for the use of X-ray spectrometry in testing for lead content. To aid the toy and consumer products industries in using X-ray spectrometry for lead detection and meet the…
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ASTM International Committee F40 on Declarable Substances in Materials has approved its first test method, F2617 , Test Method for Identification and Quantification of Chromium, Bromine, Cadmium, Mercury and Lead in Polymeric Material Using Energy Dispersive X-ray Spectrometry. The new standard is under the jurisdiction of Subcommittee F40.01 on Test Methods. ASTM F2617 describes a method for…