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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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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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Providing customer reassurance that high performance corrosion resistant steel will meet a given set of criteria is the purpose of a new ASTM International standard recently approved by Committee A01 on Steel, Stainless Steel and Related Alloys. The new standard, ASTM A1055 , Specification for Zinc and Epoxy Dual Coated Steel Reinforcing Bars, is under the jurisdiction of Subcommittee A01.05 on…
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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…
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REPORT ON THE JUNE 3-5, 2008, MEETING OF ASTM SUBCOMMITTEE D02.J ON AVIATION FUELS IN WARSAW, POLANDThe agenda for the meeting of ASTM Subcommittee D02.J on Aviation Fuels held in June 2008 is geared to the pertinent discussions concerning aviation turbine fuels and aviation gasoline, since there is much interest for the approval of biomass-produced fuels that would help reduce key greenhouse gases such as carbon dioxide (CO 2 ). In addition to these topics, task force meetings were held to…, Section J01 on Jet Fuel Specifications, - The progress made in Section J01 includes but was not limited to: -A description of a generic Fischer-Tropsch derived product known as synthesized paraffinic kerosine (SPK) is being developed for use in blending jet fuel at levels up to 50% (by volume). This will be balloted for inclusion in the jet fuel specification (ASTM D1655 , Standard Specification for Aviation Turbine Fuels) when the…, Section J06 on Emerging Aviation Fuels, -, Section J06 is a new start-up group. Their actions at the meeting were: -Opened with a discussion of the current state of alternative turbine fuels. So far, synthesis gas derived hydrocarbons are the only alternative blend stream approved or nearly approved for use in jet fuel. Their approval resulted from the efforts of SASOL, which developed synthetic jet fuel blend stocks back in the 1990s and…, Section J04 on Additives and Electrical Properties, -, Topics discussed included:, -During the session it was agreed to ballot for membership approval the new Standard Practice Guideline for the Qualification and Approval of New Aviation Turbine Fuels and Fuel Additives, as a replacement for the current words in ASTM D4054 (same title). This guideline provides a framework for the qualification and approval of new fuels, including alternative fuels and new fuel additives for use…
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Three proposed biodiesel specifications have taken the next step toward final approval as ASTM International consensus standards. The specifications include: -Adding requirements for up to 5 percent biodiesel to existing ASTM D975 , Specification for Diesel Fuel Oils; -Revising the existing ASTM D6751 , Specification for Biodiesel Fuel Blend Stock (B100) for Middle Distillate Fuels, to include a…
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Subcommittee D02.J on Aviation Fuels, part of ASTM International Committee D02 on Petroleum Products and Lubricants, will meet June 3-5, 2008, at the Hilton Warsaw Hotel and Convention Centre in Warsaw, Poland. Recognized and used worldwide, the standards produced by Subcommittee D02.J include specifications, test methods and practices to help ensure that aviation fuels are fit and remain clean…
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ASTM International Committee D35 on Geosynthetics invites all interested parties to participate in the development of a proposed new standard, WK15082 , Specification for Measuring the Asperity Height of Textured Geomembrane. The proposed standard is being developed by Subcommittee D35.10 on Geomembranes. Although asperity height is specified throughout the geosynthetic industry, a procedure to…
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Three subcommittees of ASTM International Committee D35 on Geosynthetics are currently developing several proposed new standards. The topics covered in the following proposed standards are geosynthetic clay liners, geomembranes, and the development of a mechanistic-empirical design guide for pavements. Committee D35 will meet Jan. 30-Feb. 1, 2008, at the January Committee Week in Tampa, Fla.…, Subcommittee D35.04 on Geosynthetic Clay Liners, Responding to shrinkage issues involving geosynthetic clay liners, Subcommittee D35.04 has launched work on a proposed new standard, WK12239 , Test Method for Linear Dimensional Changes of Restrained Geosynthetic Clay Liners Under Cyclic Temperature and Hydration Conditions. WK12239 is an index test that covers the measurement of changes in linear dimensions of a geosynthetic clay liner that…, Subcommittee D35.10 on Geomembranes, Subcommittee D35.10 is currently developing two proposed new standards, WK14305 , Specification for Non-Reinforced PVC (Polyvinyl Chloride) Geomembrane Seams, and WK14311 , Guide for the Installation of Non-Reinforced Polyvinyl Chloride (PVC) Geomembranes. According to Mark Wolschon, engineers, specification writers, users, suppliers, manufacturers, fabricators and installers of PVC…, Subcommittee D35.01 on Mechanical Properties, There is currently a national movement to develop a mechanistic-empirical design guide for pavements. This initiative requires that the fundamental material properties for all components of the design be quantified. Subcommittee D35.01 is working toward this goal with the development of two proposed new standards, WK14361 , Test Method for Determining Small-Strain Tensile Properties of Geogrids…