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The ongoing focus on sustainability in construction has contributed to greater interest in vegetative, or green, roof systems, in which traditional roofing material is replaced or supplemented with vegetation. A proposed new ASTM International standard will address an important aspect of designing this kind of roofing: determining the proper roofing and waterproofing membrane for a particular…
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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 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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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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When fasteners penetrate roofing or waterproofing products as a planned part of installation, it is expected in some cases that the product will resist water migration at the point of penetration. A new ASTM International standard, D7349 , Test Method for Determining the Capability of Roofing and Waterproofing Materials to Seal Around Fasteners, addresses this situation. ASTM D7349 was developed…
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Modified bitumen products have been in use since the mid-1970s, and represent a substantial percentage of the commercial asphalt roofs installed throughout North America. A new ASTM International standard addresses the use of cold process adhesives in modified bitumen roofing systems. ASTM D7379 , Test Methods for Strength of Modified Bitumen Sheet Material Laps Using Cold Process Adhesive, was…
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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 proposed new standard currently being developed by ASTM International Committee F01 on Electronics will prove to be useful to the tantalum sputtering target industry. The proposed standard, WK9490, Test Method for Reporting Crystallographic Orientation of Sputtering Target Materials, is under the jurisdiction of Subcommittee F01.17 on Sputter Metallization. "The tantalum sputtering target…
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ASTM International Committee F01 on Electronics is currently developing a proposed new standard that will provide uniformity in the values reported for oxygen content in aluminum alloys used for sputtering targets in the manufacture of integrated circuits. The proposed standard, WK9120, Determination of Oxygen in High Purity Aluminum and Alloys in High Purity Aluminum Base by Inert Gas Fusion…
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ASTM International Subcommittee F01.11 has recently changed its name from Quality and Hardness Assurance to Nuclear and Space Radiation Effect. The subcommittee is under the jurisdiction of ASTM International Committee F01 on Electronics. According to William Alfonte, chair of F01.11, the title of the subcommittee has been changed to more accurately reflect the scope of its current and future…