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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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Many products can come in contact with drinking water during various stages of its treatment and delivery. This contact can have taste and odor implications that will be addressed in a proposed new ASTM International standard, WK21784 , Practice for Assessing Flavor of Drinking Water. Subcommittee E18.06 on Food and Beverage Evaluation, a part of ASTM International Committee E18 on Sensory…
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ASTM International Committee E18 on Sensory Evaluation of Materials and Products is working on a proposed new standard that will provide sensory professionals with guidelines for developing, selecting and using scales in the context of sensory experiments and consumer research. WK19660 , Guide for Developing and Using Appropriate Scales, is being developed by Subcommittee E18.04 on Fundamentals…
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All interested parties are invited to participate in a new task group on instrument test results for sensory evaluation of consumer products, including food and cosmetics. The new task group will be part of ASTM International Committee E18 on Sensory Evaluation and will meet during the E18 meetings at April committee week in Anaheim, Calif. “Our goal at this meeting will be to recruit members,…
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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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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 E18 on Sensory Evaluation has been working on developing a series of widely used, fundamental discrimination tests into ASTM International standards. Some of these tests that are now approved standards include E2263 , Standard Test Method for Paired Preference Test, E 2139, Test Method for Same-Different Test, and E 1885 , Test Method for Sensory Analysis-Triangle…
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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 E18 on Sensory Evaluation of Materials and Products is currently working on a proposed new standard, WK8435, Practice/Guide for Measuring and Tracking Sensory Descriptive Panel and Panelist Performance. WK8435 will be used to assist sensory professionals in selecting, screening, and identifying training needs for new and existing panels and assessors. In addition,…
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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…