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Hard surface cleaning products that employ steam comprise a new and growing segment of the vacuum cleaner market, although there are currently no agreed-upon industry-wide standards for such products. A new ASTM subcommittee, F11.40 on Steam Products , part of ASTM International Committee F11 on Vacuum Cleaners , will be developing test methods to measure the performance and durability of steam…
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ASTM grain size is a property written into many specifications for metals, with finer grain sizes generally indicating better mechanical properties, such as formability. While measuring certain materials for such properties can be difficult, electron backscatter diffraction can provide precise determinations as well as give information on grain size distribution and statistics. A new ASTM…
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A recent revision to ASTM International standard E384 , Test Method for Knoop and Vickers Hardness of Materials, expands the range of its coverage. The standard is under the jurisdiction of Subcommittee E04.05 on Microindentation Hardness Testing, part of ASTM International Committee E04 on Metallography. The revision incorporates ASTM E92 , Test Method for Vickers Hardness of Metallic Materials…
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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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Determining and potentially reducing the amount of energy expended by vacuum cleaners is the purpose of a proposed new ASTM international standard, WK21491 , Test Method For Determining Energy Consumption of Vacuum Cleaners Relative to Cleaning. The proposed standard is being developed by Task Group F11.20.04 On Energy Usage And Performance, under the jurisdiction of Subcommittee F11.20 on…
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The use of rolling devices can provide a means to evaluate the adhesion of weather seals, for quality control in new installations, general evaluation of existing installations, and the investigation of water and air leakage through building enclosures. In order to better facilitate the use of rolling devices, ASTM International Committee C24 on Building Seals and Sealants is developing a…
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ASTM International Committee F11 on Vacuum Cleaners invites all interested parties to participate in a virtual meeting regarding a new standards developing activity on vacuum cleaner energy measurements. The meeting will be held June 25 at 10:00 a.m. EDT. Through this activity, Committee F11 plans to develop a standard or set of standards that will aid in increasing the energy efficiency of…
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Particulate matter emitted during the use of a vacuum cleaner is a significant area of concern that ASTM International Committee F11 on Vacuum Cleaners has dealt with by developing and approving F 2608 , Test Method for Determining the Change in Room Air Particulate Counts as a Result of the Vacuum Cleaning Process. Now, the committee is developing a proposed new standard that addresses the final…
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ASTM International Committee F11 on Vacuum Cleaners has fulfilled an industry need with the approval of a new standard, F 2608 , Test Method for Determining the Change in Room Air Particulate Counts as a Result of the Vacuum Cleaning Process. The standard is under the jurisdiction of Subcommittee F11.23 on Filtration. “The industry determined a need for a test method that is representative of…
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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…