ASTM D4806

Specification for Denatured Fuel Ethanol

Applicability: ASTM D4806 applies to anhydrous denatured fuel ethanol intended for blending with gasoline to be used as an automotive spark-ignition engine fuel. This standard covers the quality and composition of the ethanol component to ensure it is suitable for blending at concentrations between (1%) and (10%) with gasoline, which is covered by the ASTM D4814 standard.

Purpose: The purpose of ASTM D4806 is to provide a standard specification for denatured fuel ethanol, outlining the required compositional and physical limits for the fuel to ensure it is suitable for blending with gasoline for use in spark-ignition automotive engines. This standard ensures the denatured ethanol will meet performance requirements for properties like ethanol and water content, acidity, and sulfur content.