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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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A new ASTM International standard will be used to aid in the creation of auditing programs within the light sport aircraft industry. ASTM F2839 , Practice for Compliance Audits to ASTM Standards on Light Sport Aircraft, was developed by Subcommittee F37.70 on Cross Cutting , part of ASTM International Committee F37 on Light Sport Aircraft . The new practice specifies the minimum methods and…
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While the use of digital evidence is fairly common in contemporary criminal investigation, there are still relatively few degree programs in computer forensics. A new standard developed by ASTM International Committee E30 on Forensic Sciences provides a road map for post-secondary institutions to develop degree programs in computer forensics. The new standard, ASTM E2678 , Guide for Education and…
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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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ASTM International Committee F37 on Light Sport Aircraft is currently at work on a proposed new standard that will aid light sport aircraft manufacturers in understanding the standardization system that governs their products. ASTM WK22124 , Guide for Compliance with Light Sport Airplane Standards, is under the jurisdiction of the F37.20 Airplane subcommittee. According to Thomas Gunnarson, U.S.…
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ASTM International Committee F37 on Light Sport Aircraft will meet March 30 to April 1, 2009, at the Messe Friedrichshafen Exhibition Grounds in Friedrichshafen, Germany, in conjunction with AERO Friedrichshafen 2009. The three days of F37 technical meetings will include discussions on changes to key LSA standards and proposals for new documents. It will also include several other activities,…
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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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Joe Koury, staff manager for ASTM International Committee E52 on Forensic Psychophysiology, will speak at the annual seminar of the American Association of Police Polygraphists on April 17 at the Hotel Albuquerque at Old Town in Albuquerque, N.M. This meeting will follow the April 14-15 meetings of Committee E52, which will take place at the some hotel. In his presentation, Koury will provide an…
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Two proposed new ASTM standards will serve as guides for laboratories around the world in establishing a minimum basis of practice for validation and sampling of seized drugs. The proposed standards, WK12734 , Guide for Sampling Seized Drugs for Qualitative and Quantitative Analysis, and WK12735 , Practice for Validation of Seized Drug Analytical Methods, are under the jurisdiction of…
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A new standard developed by ASTM International Committee F37 on Light Sport Aircraft covers the instructions a kit producer must provide to a consumer regarding how to assemble and safely flight-test a recreational aircraft to ensure compliance with applicable ASTM standards. The new standard, F 2563 , Practice for Kit Assembly Instructions of Aircraft Intended Primarily for Recreation, is under…