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All interested parties are welcome to join in the standards developing activities of ASTM International Committee D20 on Plastics. Current D20 projects such as the development of proposed new standards covering backed vinyl siding and bioreactor landfill conditions demonstrate the diversity of D20’s work., Backed Vinyl Siding, Subcommittee D20.24 on Plastic Building Products is developing WK18425 , Specification for Rigid Poly (Vinyl Chloride) (PVC) Siding with Foam Plastic Backing (Backed Vinyl Siding). Vinyl siding with an integral foam plastic backing has been commercially available for nearly a decade. Because backed-vinyl siding is a variation of the basic siding product, testing and third party certification for…, Biodegradability of Plastics in Landfill Conditions, A proposed new standard being developed by Subcommittee D20.96 on Environmentally Degradable Plastics and Biobased Products will aid in the determination of degradation and biodegradation of plastics in landfill environments. All interested parties are encouraged to participate in the development of WK18427 , Determining the Aerobic Degradation and Anaerobic Biodegration of Plastic Materials…
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Ceramic and glass companies, as well as universities and government laboratories, will be the primary users of a new ASTM standard that allows for the flexural strength determination of components made in a round shape or after finish machining with minimal waste. The standard, ASTM C1684 , Test Method for Flexural Strength of Advanced Ceramics at Ambient Temperature-Cylindrical Rod Strength, was…
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ASTM International Committee C28 on Advanced Ceramics and the American Ceramic Society are co-sponsoring a workshop, Needs and Opportunities for Strength and Fracture Standards at Micro and Nano Scales, on Jan. 27, 2008, from 1:00 to 5:00 p.m. at the Hilton Daytona Beach Resort in Daytona Beach, Fla. The workshop will be held in conjunction with the ASTM Committee C28 meetings to be held Jan. 26-…
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While the polymer-based siding industry developed around the use of polyvinyl chloride, the last two decades have seen the introduction and rise in use of polypropylene as a siding material. Because of this, siding producers and polypropylene suppliers began to discuss the need for an ASTM standard for this type of siding. These discussions have resulted in the development and recent approval of…
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ASTM International Committee D20 on Plastics is currently developing a proposed new standard that will be used for the determination of flammability characteristics of polymeric materials under laboratory conditions. The proposed standard, WK9492 , Test Method for Determining Flammability Characteristics of Plastics and Other Solid Materials Using Microscale Combustion Calorimetry, will be useful…
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Quality control scientists, plant processing engineers and polymer formulation scientists are likely users of a new ASTM International standard, D 7210 , Practice for Extraction of Additives in Polyolefin Plastics. The standard was developed by Subcommittee D20.70 on Analytical Methods, which is under the jurisdiction of Committee D20 on Plastics. Practice D 7210 covers a variety of extraction…
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Dried blood represents the greatest challenge to cleaning surgical instruments. To meet this challenge, ASTM International Committee D12 on Soaps and Other Detergents has developed a new standard, D 7225 , Guide for Blood Cleaning Efficiency of Detergents and Washer-Disinfectors. The new guide is under the jurisdiction of Subcommittee D12.16 on Hard Surface Cleaning. Water-soluble components of…
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Verifying the results of application software used to calculate the mechanical properties of materials is the subject of a new standard developed by ASTM International Committee E08 on Fatigue and Fracture. The new standard, E 2443, Guide for Verifying Computer-Generated Test Results Through the Use of Standard Data Sets, is under the jurisdiction of Subcommittee E08.03 on Advanced Apparatus and…
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Many structures, such as aircraft or other lightweight vehicles, are made from thin-ductile structural materials that exhibit low crack-front constraint, which allows for extensive plastic yielding of the material around a crack front. However, many current standards, such as E 399, Test Method for Linear-Elastic Plane-Strain Fracture Toughness K Ic of Metallic Materials, or E 1820, Test Method…
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Representatives of ASTM International will visit the campus of Southern Methodist University (SMU) in Dallas, Texas, on the evening of Nov. 9, 2005, for an hour-long presentation to university students interested in the field of fatigue and fracture. The session will focus on the technical standards currently in use by this discipline as well as the ability of students and professionals to be…