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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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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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While the continuous quality verification concept is still quite new, it has the potential to become an important approach to assuring product quality in the pharmaceutical industry. With this in mind, ASTM International Committee E55 on Manufacture of Pharmaceutical Products has approved a new standard, E2537 , Guide for Application of Continuous Quality Verification to Pharmaceutical and…
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ASTM International Committee E55 on Manufacture of Pharmaceutical Products has developed a new standard that covers the life cycle of pharmaceutical and biopharmaceutical manufacturing systems. The new standard, E 2500 , Guide for Specification, Design and Verification of Pharmaceutical and Biopharmaceutical Manufacturing Systems and Equipment, is under the jurisdiction of Subcommittee E55.03 on…
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The ASTM International committee formerly known as E55 on Pharmaceutical Application of Process Analytical Technology has undergone a change in title and scope that reflects the intent of the committee to be more inclusive of all the tools, instrumentation and sciences that might be used by the industry in the management of pharmaceutical manufacturing processes. The committee is now known as E55…
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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 E55 on Pharmaceutical Application of Process Analytical Technology has now approved its first practice. ASTM E 2474 , Practice for Pharmaceutical Process Design Utilizing Processing Analytical Technology, is under the jurisdiction of Subcommittee E55.02 on PAT System Implementation and Practice. Practice E 2474 covers process design, which is integral to process…
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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…