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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 proposed new standard currently being developed by ASTM International Committee E05 on Fire Standards will establish a test protocol for assessing fire performance of decks and other horizontal exterior structures where combustibles beneath the structure can ignite. The proposed standard, WK17025 , Test Method for Evaluating the Under-Deck Fire Test Response of Deck Structures, is under 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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A new ASTM International standard will be used to quantify the uncertainty associated with measurements in fire tests in a consistent manner, while a proposed new E05 standard, WK14401 , Evaluating the Fire Test Response of Deck Structures to Burning Brands, will determine the fire test response of deck structures. , ASTM E 2536, Guide for Assessment of Measurement Uncertainty in Fire Tests, “Users of fire test data often need a quantitative indication of the quality of the data presented in a test report,” says Marc Janssens, director of the fire technology department at Southwest Research Institute and first vice chairman of Committee E05 . “This quantitative indication is referred to as the measurement uncertainty.” E 2536 will be used to quantify the uncertainty associated…, ASTM WK14401, Evaluating the Fire Test Response of Deck Structures to Burning Brands, Subcommittee E05.22 on Surface Burning is developing a proposed new standard, WK14401 , that will determine the fire test response of decks or other horizontal ancillary structures attached to or in close proximity to primary structures. While E05.22 member Paul Hough says that the task group working on WK14401 is already well-represented by manufacturers, regulators, wildland fire experts and…
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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…
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Because French is the second official language of Canada, an important ASTM International standard that has been included in that country’s Tobacco Act is now available for purchase in French, as well as in English. The standard, E 2187 , Test Method for Measuring the Ignition Strength of Cigarettes, predicts a cigarette’s capacity to ignite soft furniture. Test Method E 2187 is under the…
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X-ray fluorescence spectrometry is used often to determine a wide range of elements in alloys. The technique provides rapid, accurate, and precise multi-element analysis that enables efficient melt process control. It is also widely used for certification and over-check analysis of product. Although x-ray fluorescence has become a widely used technique of analysis by the nickel alloy industry,…
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ASTM Internationalhas joined the Coalition for Fire-Safe Cigarettes, a national group of fire service members, consumer and disabled rights advocates, medical and public health practitioners and other related organizations. The purpose of the CFSC, which has been coordinated by the National Fire Protection Association, is to save lives and prevent injuries and damage that result from cigarette-…
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If you are a user of ASTM B 456, Specification for Electrodeposited Coatings of Copper Plus Nickel Plus Chromium and Nick Plus Chromium, ASTM International Committee B08 on Metallic and Inorganic Coatings would like to hear from you. B 456 is under the jurisdiction of Subcommittee B08.08.03 on Decorative Coatings. "Subcommittee B08.08.03 has received reports that some users are experiencing…