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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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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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An ASTM International task group on battery separator materials is currently working on the latest in a series of standards being developed for alkaline battery separators. The proposed new standard, WK13587 , Test Methods for Sampling and Testing Materials That Are Used for Alkaline Battery Separators, is under the jurisdiction of Subcommittee D09.19 on Dielectric Sheet and Roll Products, which…
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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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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 F16 on Fasteners has recently approved an important new standard that deals with coated threaded fasteners and washers by hot-dip zinc galvanizing. The standard, F 2329, Specification for Zinc Coating, Hot-Dip, Requirements for Application to Carbon and Alloy Steel Bolts, Screws, Washers, Nuts and Special Threaded Fasteners, is under the jurisdiction of Subcommittee…
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ASTM International Committee B10, on Reactive and Refractory Metals and Alloys will hold its upcoming meeting Nov. 16-17, at the Mercure Hotel Ronceray Opera, in Paris, France. Committee meetings will be held Nov. 16, while presentations and a tour of the CEA/Saclay Research Center will occur on Nov. 17. In addition to regular B10 activities, the November meeting will include special presentations on titanium, zirconium and…
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ASTM International Committee F16 on Fasteners has developed a new standard, F 2329, Specification for Zinc Coating, Hot-Dip, Requirements for Application to Carbon and Alloy Steel Bolts, Screws, Washers, Nuts, and Special Threaded Fasteners. The standard, which is under the jurisdiction of Subcommittee F16.03 on Coatings on Fasteners, covers the requirements for hot-dip zinc coating applied to…
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Two newly approved ASTM standards are filling a gap that has existed for tests for battery separators. The new standards, D 7129, Test Method for Determination of Ammonia Trapping in a Grafted Battery Separator, and D 7131, Test Method for Determination of Ion Exchange Capacity (IEC) in a Grafted Battery Separator, are under the jurisdiction of Subcommittee D09.19 on Dielectric Sheet and Roll…
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ASTM International Committee D09 on Electrical and Electronic Insulating Materials will host a presentation of the European Unions Restriction of Hazardous Substances (RoHS) Directive during their meeting in Philadelphia, Pa. on March 15. The meeting will run from 3:00 to 5:00 p.m. and will be followed by a social hour. Electrical equipment marketed in the EU after July 1, 2006, must comply…