1. Rationale
During the ASTM Meeting in New Orleans, Louisiana in December 2011, Subcommittee D02.A voted to prepare a concurrent D02/D02.A ballot to modify D5798-11 to include various editorial and technical revisions. A work group was formed to revise the specification. This ballot proposes to add a recently approved sulfur test method, add a definition for hydrocarbon blendstock, clarify existing limits on the hydrocarbon portion of the blend, identify and separate U.S. regulatory requirements, and make other conforming modifications and updates. Specifically, this ballot proposes the following revisions: Moves the discussion of the hydrocarbon blendstock from Section 1, Scope to Section 5, Ethanol Fuel Blends Requirements; Adds a new sulfur test method ASTM D7039, Test Method for Sulfur in Gasoline and Diesel Fuel by Monochromatic Wavelength Dispersive X-ray Fluorescence Spectrometry, to Section 2, Referenced Documents; Replaces the discussion of the hydrocarbon definition in Section 3, Terminology with a new definition for hydrocarbon blendstock; Raises the maximum vapor pressure for Class 1 Ethanol Fuel Blends to 62 kPa to match the Class A limits in ASTM D4814, Standard Specification for Automotive Spark-Ignition Engine Fuel; Restructures Section 5, Ethanol Fuel Blends Requirements , and adds a new table to clarify hydrocarbon blendstock requirements,; Corrects Table 2 Seasonal and Geographical Volatility Specifications for Ethanol Fuel Blends; Establishes a new section in the Appendix on U.S. EPA regulations applicable to D5798 blends, which is aligned with that in ASTM D4814, Standard Specification for Automotive Spark-Ignition Engine Fuel Makes other conforming and editorial changes throughout the specification.
Keywords
acidity; alcohol; automotive spark-ignition engine fuel; chloride; copper corrosion; E85; ether; ethanol fuel blends for flexible-fuel automotive spark-ignition engines; flexible-fuel; hydrocarbon; inorganic chloride; lead; MTBE; oxidation stability; oxygenates; pHe; phosphorus; solvent washed gum content; sulfur; vapor pressure; volatility; water: Automotive engine fuels/oils--specifications; Ethanol; Fuel ethanol (Ed70-Ed85); Petroleum products--specifications;
Citing ASTM Standards
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