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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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Immediate action would be necessary to minimize the effects of a radiological "dirty bomb" detonation in a major city. In order to help municipalities prepare for such a possibility, ASTM International Committee E54 on Homeland Security Applications is currently developing a proposed new standard, WK19352 , Specification for Materials to Mitigate the Spread of Radioactive Contamination after a…
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Control rooms are the heart of operations for many facilities that could be vulnerable to attack, such as power plants (particularly nuclear), water treatment facilities, oil and gas refineries, rapid transit systems, bridges and dams, among other structures. Subcommittee E54.05 on Building and Infrastructure Protection is currently working on a proposed new standard that deals with control rooms…
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A new ASTM International standard, E2592 , Practice for Evaluating Cache Packaged Weight and Volume of Robots for Urban Search and Rescue, is one result of a three-year National Institute of Standards and Technology (NIST)-coordinated effort with first responders and manufacturers to develop urban search and rescue robot standards. The new standard is under the jurisdiction of Subcommittee E54.08…
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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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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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One of the goals of Subcommittee E54.05 on Building and Infrastructure Protection is to provide guidance for the design of doors, windows and other opening protectives that are part of the exterior security envelopes of buildings. As one path to achieve that goal, the subcommittee is currently developing a proposed new standard, WK14650 , Test Methods for Forced Entry and Ballistics Resistant (…
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An ASTM International task group is developing a proposed new standard, WK11343 , Test Method for Performance Verification of Blast Resistant Trash Receptacles (BRTR). Manufacturers of BRTR and related products, transit and other security organizations that may deploy them, organizations that could conduct testing and other interested parties are welcome to attend a task group meeting from 9:00…
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ASTM International Committee B08 on Metallic and Inorganic Coatings has recently approved a revision of one of its most important standards, B 633 , Specification for Electrodeposited Coatings of Zinc on Iron and Steel. B 633 is under the jurisdiction of Task Group B08.08.04 on Soft Metals, which is part of Subcommittee B08.08 on Metallic Coatings. Zinc coatings are used to provide a sacrificial…