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A type of lime that has been used in construction since ancient Roman times is now covered by an ASTM International standard. ASTM International Committee C07 on Lime has approved ASTM C1707 , Specification for Pozzolanic Hydraulic Lime for Structural Purposes. The new standard is under the jurisdiction of Subcommittee C07.02 on Specifications and Guidelines. According to Margaret Thomson, the…
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High-speed machine tool spindles and the high-pressure turbopumps that move liquid hydrogen in the space shuttle are just two examples of the uses for hybrid roller bearings. ASTM Subcommittee F34.01 on Rolling Element has now developed a standard for hybrid roller bearings, ASTM F2730/F2730M , Specification for Silicon Nitride Cylindrical Bearing Rollers. Subcommittee F34.01 is under the…
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A proposed new ASTM International standard will provide a method for a comparative evaluation of limestone sources available for use in flue gas desulfurization (FGD) applications. The proposed standard, WK20129 , Test Method for Evaluating Limestone for Use in Wet Flue Gas Desulfurization Applications by Reactivity, is being developed by Subcommittee C07.05 on Chemical Tests, part of ASTM…
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Subcommittee D13.58 on Yarns and Fibers, part of ASTM International Committee D13 on Textiles, is currently working on a proposed new standard, WK18377 , Specification for Polyolefin Chopped Strands for Use in Concrete. WK18377 will include test methods used to measure the attributes required for the intended use of the proposed standard. Primarily, the proposed standard will provide…
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A new ASTM International standard that covers annular ball bearings intended primarily for use in instrument and precision rotating components has been developed as a conversion of a U.S. military standard, MIL-B-81793F, Annular Ball Bearings, for Instruments and Precision Rotating Components. The new standard, F 2332 , Specification for Annular Ball Bearings for Instruments and Precision…
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The ASTM International Proficiency Testing Center is expanding the Textiles Proficiency Testing Program (PTP) scope of testing to include ASTM D5587. Beginning in February 2006, the ASTM International PTP on Textiles will include ASTM D5587, Standard Test Method for Tearing Strength of Fabrics by Trapezoid Procedure. The test method covers the measurement of the tearing strength of textile…
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ASTM International Committee F34 on Rolling Element Bearings is seeking participation in a new activity on measuring the cleanliness and wetability of bearing components. Because aerospace customers currently use many different methods of testing ball bearings, the goal of the activity is to work toward a consistent method for measuring cleanliness and wetability, as well as to analyze the…