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Terms that are commonly used to describe defects or abnormalities found in different types of polymer pellets have now been collected in a standard developed by ASTM International Committee D20 on Plastics . ASTM D7711 , Guide for Description of Polymer Pellet Defects, is under the jurisdiction of Subcommittee D20.92 on Terminology . According to Diane Todd, senior chemist, quality control…
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A proposed ASTM standard will provide polyurethane raw material suppliers, customers and developers with a useful practice for setting up gel tests to determine the reactivity of materials. The proposed new standard, ASTM WK34781 , Practice for Gel Tests for Polyurethane Non-Foam Formulations, is being developed by Subcommittee D20.22 on Cellular Materials — Plastics and Elastomers, part of ASTM…, ASTM Committee D20 Next Meeting:, April 15-18, 2012, April Committee Week, Phoenix, Ariz., Technical Contact:, David Mullen, Rubicon LLC, Geismar, La., Phone: 225-242-5403; david_p_mullen@huntsman.com, ASTM Staff Contact:, Alyson Fick, Phone: 610-832-9710; afick@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #9018
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Sealant manufacturers will use a new ASTM International standard to evaluate new products and changes to these products due to exposure to weather. The new standard, ASTM C1735 , Test Method for Measuring the Time Dependent Modulus of Sealants Using Stress Relaxation, is under the jurisdiction of Subcommittee C24.20 on General Test Methods , part of ASTM International Committee C24 on Building…, ASTM Committee C24 Next Meeting:, Jan. 8-10, 2012, Ft. Lauderdale, Fla., Technical Contact:, Christopher C. White, Ph.D., National Institute of Standards and Technology, Gaithersburg, Md., Phone: 301-975-6016; christopher.white@nist.gov, ASTM Staff Contact:, Stephen Mawn, Phone: 610-832-9726; smawn@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #9005
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The Resin Identification Code (RIC) system is a means of sorting different types of plastics from household waste. The RIC was developed by the Society of the Plastics Industry in 1988. The RIC assigns a numeral from 1 to 7, with a “chasing arrows” symbol around the number, to a piece of plastic to indicate its type. SPI recognized the importance of the involvement of the technical stakeholder…, ASTM Committee D20 Next Meeting:, Nov. 14-17, November Committee Week, San Antonio, Texas, Technical Contact:, Thomas Pecorini, Eastman Chemical Co., Kingsport, Tenn., Phone: 423-229-5917; tjpec@eastman.com, ASTM Staff Contact:, Brynn Murphy, Phone: 610-832-9640; bmurphy@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #8682/Sept2010
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The use of rolling devices can provide a means to evaluate the adhesion of weather seals, for quality control in new installations, general evaluation of existing installations, and the investigation of water and air leakage through building enclosures. In order to better facilitate the use of rolling devices, ASTM International Committee C24 on Building Seals and Sealants is developing a…
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A proposed new ASTM International standard will facilitate more efficient recycling of a variety of post-consumer plastics. The proposed standard, WK20632, Practice for Marking Plastic Products for Identification in Reuse and Recycling, is under the jurisdiction of Subcommittee D20.95 on Recycled Plastics, part of ASTM International Committee D20 on Plastics. ASTM WK20632 is based on an original…
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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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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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ASTM International Committee C24 on Building Seals and Sealants invites interested parties to participate in the development of a proposed new standard that will use photographs to illustrate various types of sealant failures. WK11731 , Guide for Diagnosing Sealant Failure by Comparison to Reference Photographs, is under the jurisdiction of Subcommittee C24.10 on Specifications, Guides and…