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Tribometers are used to assess the potential of humans to slip while walking on various surfaces. A new ASTM International test method will be used to provide a reference standard against which to validate and calibrate the performance of tribometers. ASTM F2508 , Practice for Validation and Calibration of Walkway Tribometers Using Reference Surfaces, has been developed by Subcommittee F13.10 on…
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Several years ago, a housing boom followed by recovery from damage caused by Hurricane Katrina and other storms created a surge in the use of imported drywall in the United States, particularly in the southeastern area of the country. However, since then, there have been a number of complaints concerning corrosion and odors in homes in which some of this drywall was used. Interim guidance…
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ASTM International Committee F13 on Pedestrian/Walkway Safety and Footwear is currently working on a proposed new standard for footwear designed for workers who do not necessarily need safety toe shoes but could use other protection such as puncture resistance, electrical shock protection and electrical grounding. The proposed new standard, ASTM WK27855 , Specification for Performance…
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With heightened interest in issues involving corrosive gypsum board, the first draft of a proposed new standard on the subject, ASTM WK26072 , Practice for Evaluation of Buildings to Identify Corrosive Gypsum Board, was reviewed and edited at a task group meeting on Nov. 10 in Atlanta, Ga. The proposed new standard is under the jurisdiction of ASTM Subcommittee C11.01 on Specifications and Test…, ASTM Committee C11 Next Meeting:, May 17-19, 2010, St. Louis, Mo., Technical Contact:, Spiderman Mulholland, U.S. Building Consultants Inc., Gainesville, Fla., Phone: 352-505-6771; spiderman@usbcinc.com, ASTM Staff Contact:, Thomas O’Toole, Phone: 610-832-9739; totoole@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #8414/Nov2009
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At an ASTM International meeting held on Oct. 20 it was decided to initiate the formulation of a proposed new ASTM standard that will cover issues relating to drywall and indoor air quality. Representatives from various ASTM International committees, including C11 on Gypsum and Related Building Materials and Systems and E06 on Performance of Buildings attended the meeting, which was held during…
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The use of non-metallic plaster bases (lath) is growing in the construction industry, and minimum consensus standards are being set for installation, test methods and performance requirements. A task group within Subcommittee C11.02 on Specifications and Test Methods for Accessories and Related Products is currently developing three lath standards: ASTM WK24554 , Test Method for Non-Metallic…
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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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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…