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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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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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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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Each year, over 1,000 structures are lost to wildfires in the state of California alone. A new ASTM subcommittee, E05.14 on External Fire Exposure Tests, is now developing standards designed to reduce the structural damage due to wildfires in California and throughout the United States. The new subcommittee is under the jurisdiction of ASTM International Committee E05 on Fire Standards. The scope…
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After an investigation of three years, the National Institute of Standards and Technology released a report on the fires and collapses of New York Citys World Trade Center towers following terrorist attacks of Sept. 11, 2001. The report, published on June 23, details recommendations made to organizations that develop building and fire safety codes, standards and practices for specific…
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At a press briefing today in New York City, the National Institute of Standards and Technology (NIST) released draft recommendations from its building and fire safety investigation of the collapse of the World Trade Center towers. The findings resulting from the investigation will be a valuable resource for ASTMs technical committees in identifying future standards development needs. ASTM…, Advisory Group Is Established, Earlier this month, ASTM International Committee E05 on Fire Standards at its biannual standards development meeting established an advisory group to focus specifically on technical findings related to E05 standardization activities arising out of the World Trade Center investigation. Formed within ASTM International Committee E05 on Fire Standards the advisory group will: 1) review the draft…, Analysis Is Commissioned, In addition, ASTM has commissioned an analysis of the NIST report as it relates to ASTMs standards. The analysis will provide timely assistance to ASTM International in studying the NIST report and will suggest standards development initiatives within Committee E05 and other ASTM technical committees. By commissioning this analysis, ASTM International will be able to continue its tradition…, Fire Resistance Task Group Is Formed, Committee E05 also established a new Task Group within Subcommittee E05.11 on Fire Resistance. E05.11 has jurisdiction over significant test methodology regarding fire resistance. The NIST report will provide a unique examination of engineering practices and test method needs., Open Participation, E05 next meets on December 4-7, 2005, in Dallas, Texas. If you would like to attend the meeting and contribute to the enhancement of existing standards or the development of new methods, guides, and practices, ASTM meetings are open to all interested parties. For additional information, please contact Tom OToole, ASTM International (phone: 610/832-9739; totoole@astm.org ); or visit the…