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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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Healthcare workers who inspect radiation protection garments will be the primary users of a proposed new ASTM International standard, WK15823 , Practice for the Fluoroscopic Inspection of Radiation Protection Garments. The proposed practice is being developed by Subcommittee F23.70 on Radiological Hazards, part of ASTM International Committee F23 on Protective Clothing. “Besides visual…
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In response to changing emissions restrictions and consumer expectations, ASTM International Committee D15 on Engine Coolants is now developing a proposed new standard, WK16003 , Specification for Engine Coolant Grade 1,3-propanediol (PDO). This task group is under the jurisdiction of Subcommittee D15.07 on Specifications. Edward Eaton, D15 member and chief engineer, Amalgatech, says that as…
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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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Two proposed new standards currently being developed by ASTM International Committee F23 on Protective Clothing will each contribute to the safety of protective clothing. Interested parties are invited to participate in the development of both proposed standards, which are WK14247 , Specification for Air-Fed Protective Ensembles and WK14442 , Antimicrobial Activity of Textiles Following Multiple…, WK14247, Specification for Air-Fed Protective Ensembles, Subcommittee F23.30 on Chemicals invites users and manufacturers of air-fed protective ensembles to participate in the development of a proposed new standard WK14247 . This proposed specification would establish design, performance, documentation, labeling and certification requirements for protective ensembles that rely on principal air supply to the wearer via an air line or air filtered…, WK14442, Antimicrobial Activity of Textiles Following Launderings with Bleach, Antimicrobial treatments often are applied to textiles to impart durable efficacy, reducing the survival and growth of microorganisms on the textile. A proposed new ASTM standard, WK14442 , under the jurisdiction of F23’s biological subcommittee, F23.40 , would ensure these antimicrobial agents would continue to work throughout a garment’s life span. “Over the last 10 years, the industry has…
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ASTM International Committee F23 on Personal Protective Clothing and Equipment has developed a new standard in response to a United States Food and Drug Administration ruling to change how the marketing of surgical gowns is regulated. The new standard, F 2407 , Specification for Surgical Gowns Intended for Use in Healthcare Facilities, is under the jurisdiction F23’s biological subcommittee, F23.…
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A new publication about the performance of protective clothing is now available from ASTM International. STP 1462, Performance of Protective Clothing: Global Needs and Emerging Markets, 8th Symposium , includes 19 peer-reviewed papers that address topics related to the performance of protective clothing for government and industrial workers, first responders, and civilians. A vital resource for…
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Fostering government support for ASTM International Committee F23 on Protective Clothing and other standards developing committees related to protective clothing is the central goal of a new memorandum of understanding recently signed by ASTM International and the National Institute for Occupational Health and Safety. The agreement highlights the role of the NIOSH National Personal Protective…
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ASTM International Subcommittee C28.07 on Ceramic Matrix Composites has formed a task group to address the evaluation of fiber-reinforced ceramic matrix composite structures for a future generation of nuclear energy systems. Subcommittee C28.07 is under the jurisdiction of Committee C28 on Advanced Ceramics. The new task group was formed at the January meeting of Subcommittee C28.07. To advance…