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ASTM International Committee E07 on Nondestructive Testing has developed a new standard, E 2491, Guide for Evaluating Performance Characteristics of Phased-Array Ultrasonic Examination Instruments and Systems. Guide E 2491 , which is under the jurisdiction of Subcommittee E07.06 on Ultrasonic Method, is intended to be used for comparing instruments and systems, as well as for detecting long-term…
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The increased use of geomembranes as barrier materials to restrict liquid migration from one location to another created a need for a test method to evaluate the quality of geomembrane seams produced by tape methods. ASTM International Committee D35 on Geosynthetics has met this need with the approval of the new standard D 7272 , Test Method for Determining the Integrity of Seams Used in Joining…
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ASTM International Committee D35 on Geosynthetics has developed a new standard that is an important step toward the improvement of filtration design for non-woven geotextiles. The standard, D 7178 , Practice for Determining the Number of Constrictions “, m, ” of Non-Woven Geotextiles as a Complementary Filtration Property, will provide engineers and researchers a common basis for accurate determination of an important products property. Practice D 7178 is under the jurisdiction of Subcommittee D35.03 on Permeability and Filtration. Practice D 7178 describes the procedure used along with existing test methods to determine the number of…
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New ASTM Nondestructive Testing Standard Presents Digital Images for Inspection of Aluminum CastingsDeveloping new ASTM standard E 2422, Reference Digital Images for Inspection of Aluminum Castings, wasn’t just a matter of digitizing the images used in current standard E 155, Reference Radiographs for Inspection of Aluminum and Magnesium Castings. According to Michael Horky, principal level III, RT, Boeing Commercial Airplanes, to create the new standard, task group members had to understand…
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Verifying the results of application software used to calculate the mechanical properties of materials is the subject of a new standard developed by ASTM International Committee E08 on Fatigue and Fracture. The new standard, E 2443, Guide for Verifying Computer-Generated Test Results Through the Use of Standard Data Sets, is under the jurisdiction of Subcommittee E08.03 on Advanced Apparatus and…
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A new, two DVD set, "Reference Radiograph E 2422, Standard Digital Reference Images for Inspection of Aluminum Castings," is now available for purchase from ASTM International. The images illustrate the types and degrees of discontinuities that may be found in aluminum-alloy castings. This two DVD set consists of 13 digital files, software to load the desired format, and specific instructions…
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Many structures, such as aircraft or other lightweight vehicles, are made from thin-ductile structural materials that exhibit low crack-front constraint, which allows for extensive plastic yielding of the material around a crack front. However, many current standards, such as E 399, Test Method for Linear-Elastic Plane-Strain Fracture Toughness K Ic of Metallic Materials, or E 1820, Test Method…
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Representatives of ASTM International will visit the campus of Southern Methodist University (SMU) in Dallas, Texas, on the evening of Nov. 9, 2005, for an hour-long presentation to university students interested in the field of fatigue and fracture. The session will focus on the technical standards currently in use by this discipline as well as the ability of students and professionals to be…
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ASTM Committee D35 on Geosynthetics will present a workshop on the possibility of creating a Geogrid Aperture Stability standard during the June Committee Week in Reno, Nev. The workshop will take place June 15 from 6:00 p.m. to 7:30 p.m. Steve Valero, Vice President - Technology, Tensar, will chair the workshop. Valero promises a productive and lively workshop that will be focused on educating…
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ASTM International Committee E07 on Nondestructive Testing has initiated work on a proposed new Guide for Digital Detector Array Selection. Information on the proposed guide, which is under the jurisdiction of Subcommittee E07.01 on Radiology (X and Gamma) Method, can be found by entering "WK7492" in the site search box on the home page of ASTM Internationals Web site ( www.astm.org ). The…