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Subcommittees F04.41 - F04.46 , which deal with Tissue Engineered Medical Products (TEMPs), part of ASTM International Committee F04 on Medical and Surgical Materials and Devices, will meet Oct. 27-28 at the National Physical Laboratory in Teddington, United Kingdom. The meeting will focus on the ongoing development of several proposed TEMPs-related standards. Several TEMPS standards are…
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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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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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A new ASTM International standard provides testing procedures for devices that can be used to treat spinal disorders while allowing for continued joint movement. The standard, ASTM F2624 , Test Method for Static, Dynamic and Wear Assessment of Extra-Discal Spinal Motion-Preserving Implants, was developed by Subcommittee F04.25 on Spinal Devices, part of ASTM International Committee F04 on Medical…
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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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Two proposed new ASTM International standards are part of the extensive work being done by Committee F32 on Search and Rescue to develop a comprehensive set of standards for search and rescue team training. The proposed new standards, WK15661 , Guide for Level I Rope Rescue Technician Endorsement, and WK15503 , Guide for Training of Level I Rescue Technician, are both under the jurisdiction of…
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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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Technical advancements in both tissue engineering and bone substitute materials have resulted in a great increase in the number of tissue-engineered medical products available on the market. Many of these new products are mineral-based, often using calcium phosphate scaffolds. While there are some general standards on scaffolds in tissue-engineered medical products, a comprehensive standard on…
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ASTM International Committee F04 on Medical and Surgical Materials and Devices is developing a proposed new standard that will help the medical device industry with the measurement and reporting of vascular stent radial stiffness and strength. The proposed standard, WK15227 , Test Methods for Radial Stiffness and Strength of Balloon Expandable Stents, is under the jurisdiction of Subcommittee F04…
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Understanding how blood within a human body will interact with any substance with which it comes in contact is a crucial part of any medical process. A new practice recently approved by ASTM International Committee F04 on Medical and Surgical Materials and Devices is one of a series of standards that evaluates the complement activating properties of solid materials intended for use in contact…