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Two recently approved ASTM International standards provide user-friendly tests for properties of sintered metallurgy products. The new standards, developed by Subcommittee B09.04 on Bearings, are ASTM B962 , Test Methods for Density of Compacted or Sintered Power Metallurgy (PM) Products Using Archimedes’ Principle, and ASTM B963 , Test Methods for Oil Content, Oil-Impregnation Efficiency and…
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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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ASTM International Committee F12 on Security Systems and Equipment has approved a new standard, F 2656 , Test Method for Vehicle Crash Testing of Perimeter Barriers. The new test method, developed by Subcommittee F12.10 on Systems, Products and Services, provides a range of vehicle impact conditions, designations and penetration performance levels for the testing of perimeter barriers that are…
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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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It has become a common scene: a driver in a parking lot suddenly loses control of a car, sending it into a storefront or other pedestrian area. In an effort to minimize the injury and damage caused by such crashes, ASTM International Committee F12 on Security Systems and Equipment is developing a proposed new standard, WK13074 , Test Method for Crash Testing of Low Speed Pedestrian Barriers. The…
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A proposed new standard being developed by ASTM International Committee B09 on Metal Powders and Metal Powder Products offers a solution to the challenge of handling and characterizing very fine powders. Subcommittee B09.02 on Base Metal Powders is developing the proposed standard, WK13023 , Test Method for Determination of Tap Density of Metallic Powders by a Constant Volume Measuring Method. …
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ASTM International Committee F12 on Security Systems and Equipment invites all interested users, specifiers and industry personnel to participate in the development of a proposed new standard, WK11191 , Test Method for Boat Barriers. WK11191 is under the jurisdiction of Subcommittee F12.10 on Systems, Products and Services. The purpose of the WK11191 is to create requirements for any land-based…
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Conventionally processed powder metallurgy materials often exhibit open microporosity at the surface. While it is a natural part of the process, this microporosity can affect the measurement of surface finishes. To cover this and other issues that arise from measuring the surface finish of powder metallurgy, ASTM International Committee B09 on Metal Powders and Metal Powder Products has developed…
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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…
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ASTM Committee F12 on Security Systems and Equipment invites all interested parties to join in the development of a new standard on waterfront boat barriers. This activity will be under the jurisdiction of Subcommittee F12.10 on Systems Products and Services. The perimeters of military and civilian installations, both on land and on water, are currently being protected by personnel, electronic…