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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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Special considerations need to be made for flooring in multi-purpose rooms, particularly those in child care buildings, elementary schools and long-term care facilities. ASTM International Committee F06 on Resilient Floor Coverings is currently developing a proposed new standard for such flooring. WK24836 , Specification for Active Area, Multipurpose Flooring, is under the jurisdiction of…
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Producers of fluorocarbons are invited to join in the ongoing standards developing activities of ASTM International Committee D26 on Halogenated Organic Solvents and Fire Extinguishing Agents. The committee has recently approved a new standard, ASTM D7509 , Specification for Fluorocarbon Feedstock Grade Chloroform, under the jurisdiction of Subcommittee D26.08 on Halogenated Organics Used as…
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A new ASTM International standard, ASTM D7447 , Practice for Symbolizing Adhesive Applications, provides a convenient way for engineers to represent adhesives on a computer-aided design drawing. The standard, a collaborative effort between ASTM and the Adhesive and Sealant Council, is under the jurisdiction of Subcommittee D14.60 on Adhesive Material Classification System, which is part of ASTM…
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Finding ways to assure the quality and safe handling of fire extinguishing agents has led to the development of two new ASTM International standards, D 7323 , Practice for Handling, Transportation and Storage of IG-100 (Nitrogen), and D 7325 , Practice for Handling, Transportation and Storage of IG-541, N2, Ar, CO2. The new standards were developed by Subcommittee D26.09 on Fire Extinguishing…
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Providing users with an assurance of quality and ensuring the safe handling, transport and storage of fire extinguishing agents are the purposes of a new ASTM International standard, D 7327 , Specification for HFC Blend B (CH2FCF3, CHF2CF3 and CO2). The new standard was developed by Subcommittee D26.09 on Fire Extinguishing Agents, which is part of ASTM International Committee D26 on Halogenated…
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A series of focus groups conducted by the Adhesive and Sealant Council, Inc., has led to the ongoing development of a proposed new standard, WK14701 , New Symbols for Adhesive Applications. WK14701 is being developed by Subcommittee D14.04 on Terminology, part of ASTM International Committee D14 on Adhesives. According to Lawrence D. Sloan, president, Adhesive and Sealant Council, and D14.04…
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All interested parties are invited to contribute to the ongoing development of WK11541 , Specification for Structural Insulated Panel (SIP) Adhesives for Bonding Oriented Strand Board (OSB) Facers to Rigid Cellular Polystyrene Thermal Insulation Core Materials. The proposed standard is under the jurisdiction of Subcommittee D14.70 on Construction Adhesives, which is part of ASTM International…
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Subcommittee D26.09 on Fire Extinguishing Agents is dedicated to developing standards that provide end users with an assurance of quality in fire extinguishing agents, as well as to ensure the safe handling, transport and storage of such agents. The subcommittee, which is under the jurisdiction of ASTM International Committee D26 on Halogenated Organic Solvents and Fire Extinguishing Agents, is…