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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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A proposed new ASTM International standard will provide a method for a comparative evaluation of limestone sources available for use in flue gas desulfurization (FGD) applications. The proposed standard, WK20129 , Test Method for Evaluating Limestone for Use in Wet Flue Gas Desulfurization Applications by Reactivity, is being developed by Subcommittee C07.05 on Chemical Tests, part of ASTM…
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ASTM International Committee E35 on Pesticides and Alternative Control Agents has now published the last in a series of three ASTM International standards that address the activity of hand hygiene agents against microbes that can be transmitted via contaminated hands. Subcommittee E35.15 on Antimicrobial Agents developed the new standard, ASTM E2613 , Test Method for Determining Fungus-…
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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 E35 on Pesticides and Alternative Control Agents has begun work on the latest in a series of standards on biofilm. The proposed new standard, WK17813 , Test Method for Quantification of a, Pseudomonas aeruginosa, Biofilm Grown with Low Shear and Continuous Flow Using a Drip Flow Biofilm Reactor, is being developed by Subcommittee E35.15 on Antimicrobial Agents. According to Darla M. Goeres, senior research engineer, Center for Biofilm Engineering, and E35 member, biofilm is defined as microorganisms living in a self-organized cooperative community. These communities, which are embedded in slime and can be…, Pseudomonas aeruginosa, Biofilm Grown with High Shear and Continuous Flow Using CDC Biofilm Reactor; and E2196 , Test Method for Quantification of a, Pseudomonas aeruginosa, Biofilm Grown with Shear and Continuous Flow Using a Rotating Disk Reactor) is that biofilm is grown under low fluid shear close to the air/liquid interface and that the drip flow reactor is a plug flow reactor system, resulting in biofilm that is visible to the naked eye and smooth and slimy in appearance. Biofilm generated in a drip flow reactor could represent those found in a wide spectrum of…