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Thermoplastic corrugated stormwater chambers are similar to other types of plastic piping systems in that they are subjected to significant live loads from surface traffic as well as dead loads from earth cover. However, differences in construction — specifically, the fact that chambers are open-bottomed arches — necessitate an understanding of how corrugated stormwater chambers behave…
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A proposed new standard that will allow for the joining of copper and plastic piping materials is currently being developed by ASTM International Committee F17 on Plastic Piping Systems. The proposed standard, WK21656 , Specification for Structural Adhesive for Bonding Similar and Dissimilar Piping Materials, is under the jurisdiction of Subcommittee F17.20 on Joining. “ WK21656 is the result of…
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A proposed new standard under the jurisdiction of ASTM International Committee F17 on Plastic Piping Systems will be useful to the gas gathering and distribution industries. Subcommittee F17.11 on Composite is developing the proposed standard, WK21276 , Specification for Polyethylene Pipe with a Co-Extruded Polyamide Inner and/or Outer Barrier Layer for Oil and Gas Applications. According to…
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[i][url=http://www.astm.org/COMMIT/COMMITTEE/D02.htm]ASTM Committee D02 [/url]Publishes New and Revised Biodiesel Specifications [/i] High costs at the pump, renewable energy and alternate sources continue to headline today’s news and a group of newly published ASTM International specifications sets the standard for one of these fuels: biodiesel, a fuel used in freight trucks, buses, boats ships…
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[i]Se acaban de terminar las especificaciones para las mezclas B6 a B20 y se modificaron las del diésel y del combustible para quemadores que incluirán hasta las mezclas B5[/i] Los precios más altos en los surtidores y las fuentes de energía renovable y alternativas siguen encabezando las noticias de hoy y una serie de especificaciones de la ASTM International recientemente publicadas fijan la…
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B6 to B20 blends are newly specified; diesel and burner fuel specifications are revised to include up to B5 blends Higher costs at the pump, renewable energy and alternate sources continue to headline today's news, and a group of newly published ASTM International specifications sets the standard for one type of these fuels: biodiesel. Four standards now available from ASTM International provide…
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Installers of plumbing systems using PEX and PE-RT polyethylene pipe will be the primary users of a new ASTM International standard approved by Committee F17 on Plastic Piping Systems. The new standard, ASTM F2735 , Specification for Plastic Insert Fittings for SDR9 Cross-Linked Polyethylene (PEX) and Polyethylene of Raised Temperature (PE-RT) Tubing, is under the jurisdiction of Subcommittee F17…
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Four ASTM International standards that specify biodiesel have achieved final ASTM approval and will proceed toward publication and availability, which is anticipated for mid-October. The new and newly revised specifications will be used in engine design, to include in bid and purchasing contracts or to check fuel quality at the pump. The standards include the following: ASTM D975-08a ,…
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A proposed new ASTM International standard, WK19571 , Practice for Requirements for New Pipe and Fitting Materials for Gas Distribution Systems, will give the natural gas industry an important tool and defined process in continuing research and development efforts that will lead to the streamlined introduction of innovative products for the gas distribution industry. ASTM WK19571 is under the…
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More than 100 participants attended the meetings of ASTM Subcommittee D02.J on Aviation Fuels held June 3-5, 2008, in Warsaw, Poland. The subcommittee is part of ASTM International Committee D02 on Petroleum Products and Lubricants., Participating in the Warsaw event were representatives from the Air Transport Association (ATA), the International Air Transport Association (IATA) and 10 airlines, as well as a large number of major petroleum refiners, eight original equipment manufacturers and several airworthiness authorities., Recognized and used worldwide, the standards produced by ASTM Subcommittee D02.J include specifications, test methods and practices to help ensure that aviation fuels are fit and remain clean and dry prior to use. The focus of the meeting was aviation turbine fuels and aviation gasoline, with strong interest in the approval of biomass produced fuels, which would help to reduce key greenhouse…