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Since 2009, the National Fire Protection Association has required arc rated gloves in its NFPA70E, Standard for Electrical Safety in the Workplace. A new ASTM standard will now provide arc rating thermal protective values for gloves, which will allow more gloves to be used inside an arc flash zone when there is no shock hazard. The new standard, ASTM F2675/F2675M , Test Method for Determining Arc…, ASTM Committee F18 Next Meeting:, Oct. 20-23, 2013, Charleston, S.C., Technical Contact:, Hugh Hoagland, ArcWear, Louisville, Ky., Phone: 502-832-9737; hugh@arcwear.com , ASTM Staff Contact:, Kevin Shanahan, Phone: 610-832-9737, kshanahan@astm.org , ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #9469
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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 proposed new standard being developed by ASTM International Committee F18 on Electrical Protective Equipment for Workers will provide guidance to assist in the required testing of live-line tools. ASTM WK33590 , Guide for In-Service Inspection, Maintenance and Electrical Testing of Insulating Tools (Fiberglass-Reinforced Plastic (FPR) and Wooden Live-Line Tools), is under the jurisdiction 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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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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Arc protective blankets are used in many electrical applications to protect workers who are stationed near energized electrical parts. While these blankets have been used for years, there have been no testing criteria for their evaluation. A new ASTM International standard will be used to determine the effectiveness of arc protective blankets in suppressing the combined effect of an arc flash and…
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A recently approved revision to ASTM International standard C 150 , Specification for Portland Cement, includes three significant technical changes to the document. The changes are part of a joint effort between ASTM and the American Association of State and Highway and Transportation Officials to harmonize C 150 with AASHTO’s standard, M 85, Specification for Portland Cement. C 150 is under the…
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A new ASTM International standard, F 2621 , Practice for Determining Response Characteristics and Design Integrity of Arc Related Finished Products in an Electric Arc Exposure, is the latest in a series of standards developed by Subcommittee F18.65 on Wearing Apparel to reduce the number of fatalities and injuries caused by electric arcs. ASTM Practice F 2621 provides procedural guidelines for…
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After a 35-year-absence, the natural cement industry is being revived and, along with it, a long-withdrawn ASTM International standard. Until it closed in 1970, the Century Cement Company in Rosendale, N.Y. was the last company to manufacture natural cement. Up to that point, Rosendale had been the center of the industry, the source of more than half of all natural cement produced in the U.S.…
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A new test method developed by ASTM International Committee C01 on Cement provides information about the behavior of cement that can be used in the process of selecting cementing materials for specific applications. The standard, C 1608, Test Method for Chemical Shrinkage of Hydraulic Cement Pastes, is under the jurisdiction of Subcommittee C01.31 on Volume Change. Test Method C 1608 was…