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Standard Practice for Blending Mid-Level Ethanol Fuel Blends for Flexible-Fuel Vehicles with Automotive Spark-Ignition EnginesTranslate name
STANDARD published on 1.4.2021
Designation standards: ASTM D7794-21
Publication date standards: 1.4.2021
The number of pages: 7
Approximate weight : 21 g (0.05 lbs)
Country: American technical standard
Category: Technical standards ASTM
automotive spark-ignition engine fuel, blending formula, conventional-fuel vehicles, denatured fuel ethanol, ethanol, ethanol fuel blend, flexible-fuel vehicles, fuel blending dispenser, fuel ethanol, inorganic chloride, mid-level ethanol fuel blends, phase separation, water tolerance,, ICS Number Code 71.080.60 (Alcohols. Ethers),75.160.20 (Liquid fuels)
1.1This practice applies to the blending of automotive spark-ignition engine fuels with ethanol concentrations greater than those suitable for conventional-fuel vehicles and less than the minimum ethanol content specification limits of Specification . These mid-level ethanol fuel blends are for use in flexible-fuel vehicles and are sometimes referred to at retail as Ethanol Flex Fuel.
1.2These mid-level ethanol fuel blends are only suitable for use in ground flexible-fuel vehicles equipped with spark-ignition engines. Flexible-fuel vehicles are designed to operate on gasoline or gasoline-ethanol blends that meet the requirements of Specification , ethanol fuel blends that meet the requirements of Specification , or any combination of these. In the United States, these vehicles are certified by the U.S. EPA as emissions compliant with these types of fuels.
1.3The mid-level ethanol fuel blend shall be blended from either:
1.3.1Denatured fuel ethanol conforming to the requirements of Specification with a reduced limit on inorganic chloride content that will ensure no more than 1 mg/kg inorganic chloride in the finished fuel and from spark-ignition engine fuel conforming to Specification (often at a distribution terminal or bulk plant), or
1.3.2Ethanol fuel blends conforming to Specification and from spark-ignition engine fuel conforming to Specification (often at a retail site).
1.4This practice describes the required procedures for blending various mid-level ethanol fuel blends for flexible-fuel vehicles at the bulk distribution point or retail/commercial delivery site. These requirements may be applied at other points in the production and distribution system when provided by agreement between the purchaser and the supplier.
1.5The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.6This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.7This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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