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ASTM International Committee F38 on Unmanned Aircraft Systems will meet at ASTM International Headquarters on Wednesday and Thursday, July 22 and 23. The meeting will open with a briefing on the small UAS (sUAS) landscape from FAA and F38, and discussion on standards needed to support regulatory efforts. This is based on the recommendations of the FAA’s sUAS Aviation Rulemaking Committee (ARC…
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Subcommittee F38.01 on Airworthiness, part of ASTM International Committee F38 on Unmanned Air Vehicle Systems, has approved a new standard for flight authority and is currently working on a proposed standard that covers UAS recovery systems. Subcommittee F38.01 welcomes participation in its ongoing standards development activities. ASTM F2690 - Flight Authority Gerry Marsters, president,…
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Honeycomb ceramics, porous with linear hollow channels, are being used worldwide in automotive catalytic converters and as diesel particulate filters for trucks. Flexural testing of this type of ceramics is addressed in a new ASTM International standard, ASTM C1674 , Test Method for Flexural Strength of Advanced Ceramics with Engineered Porosity (Honeycomb Cellular Channels) at Ambient…
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A proposed new ASTM International practice will allow a wide variety of users to differentiate levels of effectiveness among the many types of security fence systems that currently exist. WK19721 , Practice for Evaluation of the Effectiveness of Different Types of Fence Systems, is under the jurisdiction of Subcommittee F14.50 on High Security Fences and Perimeter Barriers, part of ASTM…
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New Advanced Ceramics Standards from ASTM Cover Fracture Mirror Size Analysis, Tensile Strength DataSubcommittee C28.01 on Mechanical Properties and Performance, part of ASTM International Committee C28 on Advanced Ceramics, has recently approved two new standards, ASTM C1678 , Practice for Fractographic Analysis of Fracture Mirror Sizes in Ceramics and Glasses, and ASTM C1683 , Practice for Size Scaling of Tensile Strengths Using Weibull Statistics for Advanced Ceramics., ASTM C1678 —Bringing Consistency to Fracture Mirror Size Analysis, Fracture mirror size analysis is a powerful quantitative tool for the interpretation of broken ceramic and glass articles. While this type of analysis can be used to determine the stress in a part at the instant of fracture, inspection and interpretation procedures have often varied, resulting in uncertainty in stress estimates. ASTM C1678, Practice for Fractographic Analysis of Fracture Mirror…, ASTM C1683 —Scaling Strength Values, ASTM C1683, Practice for Size Scaling of Tensile Strength Using Weibull Statistics for Advanced Ceramics, provides methodology to convert fracture strength parameters estimated from data obtained with one test geometry to strength parameters representing other test geometries. Stephen Duffy, chair of civil engineering, Cleveland State University, and C28 member, says that companies producing…
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Ceramic and glass companies, as well as universities and government laboratories, will be the primary users of a new ASTM standard that allows for the flexural strength determination of components made in a round shape or after finish machining with minimal waste. The standard, ASTM C1684 , Test Method for Flexural Strength of Advanced Ceramics at Ambient Temperature-Cylindrical Rod Strength, was…
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A new ASTM International standard provides instructions for developing the chain-link fence design, layout and installation for a wide variety of sports and recreational facilities and other applications. The standard, F 2631 , Practice for Installation of Chain-Link Fence for Outdoor Sports Fields, Sports Courts and Other Recreation Facilities, was developed by Subcommittee F14.10 on Specific…
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ASTM International Committee C28 on Advanced Ceramics and the American Ceramic Society are co-sponsoring a workshop, Needs and Opportunities for Strength and Fracture Standards at Micro and Nano Scales, on Jan. 27, 2008, from 1:00 to 5:00 p.m. at the Hilton Daytona Beach Resort in Daytona Beach, Fla. The workshop will be held in conjunction with the ASTM Committee C28 meetings to be held Jan. 26-…
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ASTM International Committee F14 on Fences is seeking a volunteer to head a task group that will develop a proposed new standard for temporary fences, WK14410 . The proposed new standard will be under the jurisdiction of Subcommittee F14.10 on Specific Applications. WK14410 will address several aspects of temporary fences, including safety, construction sites, crowd control, security and…
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When ASTM International Committee F38 on Unmanned Aircraft Systems was formed in 2003, it is safe to say no one on the committee was thinking about catapults and trebuchets. However, a study of these medieval devices was integral to the development of a new F38 standard, F 2585 , Specification for Design and Performance of Pneumatic-Hydraulic Unmanned Aircraft System (UAS) Launch System. F 2585…