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Flow characteristics of fine metal powders are important in filling dies for pressing of powder metallurgy compacts, which are later sintered and sometimes machined into finished parts. The flow rate, as measured by a new ASTM standard, determines the flow necessary for a precise quantity of powder to be introduced into the die. The new standard, B964 , Test Methods for Flow Rate of Metal Powders…
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Side curtain airbags are usually mounted in the roof of a vehicle and burst through the headliner to cover the side window area in the event of a side impact or rollover accident. ASTM International Committee D13 on Textiles is currently developing a proposed new standard for the testing of such side curtain airbags, WK23227 , Test Method for Determining Pressure Decay of Inflatable Restraint…
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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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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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As a means of ensuring the safety of electrical wiring systems in airplanes, ASTM International Committee F39 on Normal and Utility Category Airplane Electrical Wiring Systems has recently approved F2639 , Practice for Design, Alteration and Certification of Airplane Electrical Wiring Systems, a standard developed by Subcommittee F39.01 on Design, Alteration and Certification. According to…
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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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A new ASTM International standard, F 2490 , Guide for Aircraft Electrical Load and Power Source Capacity Analysis, has been accepted by the Federal Aviation Administration (FAA) as a means of compliance with 14 CFR 23.1351(a) (2), Electrical System Capacity for Part 23 (and Predecessor) Aircraft. Guide F 2490 was developed by Subcommittee F39.01 on Design, Alteration, and Certification, which is…
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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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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 F39 on Normal and Utility Category Airplane Electrical Wiring Systems has approved its first standard, F 2490, Guide for Aircraft Electrical Load and Power Source Capacity Analysis. The new guide covers how to prepare an electrical load analysis to meet Federal Aviation Administration requirements. "This standard is a model for a consistent method of determining the…