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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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Protecting the eyes of athletes is the central purpose of ASTM International standard F 803 , Specification for Eye Protectors for Selected Sports. However, with an increasing number of sports requiring eye protection, Subcommittee F08.57 on Eye Safety for Sports has been developing individual standards covering eye protection for specific sports. The subcommittee, which is part of ASTM…
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Low energy air guns, also known as air soft or soft air guns, have become increasingly popular over the last several years. These low energy air guns are often used in tactical gaming sports similar to paintball. ASTM International Committee F08 on Sports Equipment and Facilities has recently approved a new standard for air guns, F 2654 , Specification for Low Energy Air Gun (LEAG) Warnings. The…
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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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Keeping paintball safe and fun is a major goal of Subcommittee F08.24 on Paintball and Equipment, part of ASTM International Committee F08 on Sports Equipment and Facilities. In order to do that, the subcommittee began work in 2005 on a series of standards that would expand the scope of its standard F 1750 , Specification for Paintball Marker Threaded-Propellant Source Interface. One of the new…
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Subcommittee F08.55 on Body Padding, part of ASTM International Committee F08 on Sports Equipment and Facilities, is seeking the expertise and advice of professionals, manufacturers and riding groups within the horse racing world to assist in the development of a proposed new standard, WK14824 , Specification for Body Protectors Used in Equine Competition and Racing. WK14824 will cover minimum…
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While poured-in-place playground surfacing is a very promising form of playground surface construction, its use has not been without problems. In order to address these issues, ASTM International Committee F08 on Sports Equipment and Facilities has developed F 2479, Guide for Specification, Purchase, Installation and Maintenance of Poured-in-Place Playground Surfacing. F 2479 is under the…
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Building a public use skateboarding park can be a difficult and divisive event for many communities. Financial and accountability issues need to be considered and the park needs to be safe for skateboarders who use it. The needs of skateboarders themselves must be addressed as well, since many communities have built inadequate parks that remain unused as skateboarders continue to skate at the…
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Dried blood represents the greatest challenge to cleaning surgical instruments. To meet this challenge, ASTM International Committee D12 on Soaps and Other Detergents has developed a new standard, D 7225 , Guide for Blood Cleaning Efficiency of Detergents and Washer-Disinfectors. The new guide is under the jurisdiction of Subcommittee D12.16 on Hard Surface Cleaning. Water-soluble components of…