ASTM D4806 Specification for Denatured Fuel Ethanol for Blending with Gasolines
ASTM D4806 Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel
1. Scope
1.1 This specification covers nominally anhydrous denatured fuel ethanol intended to be blended with unleaded or leaded gasolines at 1 to 10 volume % for use as a spark-ignition automotive engine fuel. The significance of this specification is shown in Appendix X1.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
2. Referenced Documents
2.1 ASTM Standards:
D86 Test Method for Distillation of Petroleum Products
D381 Test Method for Existent Gum in Fuels by Jet Evaporation
D512 Test Methods for Chloride Ion in Water
D891 Test Methods for Specific Gravity, Apparent, of Liquid Industrial Chemicals
D1152 Specification for Methanol (Methyl Alcohol)
D1193 Specification for Reagent Water
D1613 Test Method for Acidity in Volatile Solvents and Chemical Intermediates Used in Paint, Varnish, Lacquer, and Related Products
D1688 Test Methods for Copper in Water
D3505 Test Method for Density or Relative Density of Pure Liquid Chemicals
D4052 Test Method for Density and Relative Density of Liquids by Digital Density Meter
D4057 Practice for Manual Sampling of Petroleum and Petroleum Products
D4814 Specification for Automotive Spark-Ignition Engine Fuel
D5501 Test Method for the Determination of Ethanol Content of Denatured Fuel Ethanol by Gas Chromatography
D6423 Test Method for Determination of pHe of Ethanol, Denatured Fuel Ethanol, and Fuel Ethanol (Ed75–Ed85)
E 203 Test Method for Water Using Karl Fischer Reagent
E 300 Practice for Sampling Industrial Chemicals
E 1064 Test Method for Water in Organic Liquids by Coulometric Karl Fischer Titration
2.2 Other Standards:
United States Code of Federal Regulations, Title 27, Parts 20 and 21
United States Federal Specification O-E-760b Ethyl Alcohol (Ethanol): Denatured Alcohol: and Proprietary Solvent
3. Terminology
3.1 Definitions:
3.1.1 ethanol, n - ethyl alcohol, the chemical compound C2H5OH.
3.1.2 gasoline, n - a volatile mixture of liquid hydrocarbons, generally containing small amounts of additives, suitable for use as a fuel in spark-ignition, internal combustion engines.
3.1.3 gasoline-ethanol blend, n - a fuel consisting primarily of gasoline along with a substantial amount (more than 0.35 mass % oxygen) of denatured fuel ethanol.
3.1.4 oxygenate, n - an oxygen-containing ashless, organic compound, such as an alcohol or ether, which may be used as a fuel or fuel supplement.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 denaturants - natural gasoline, gasoline components, unleaded gasoline, or toxic or noxious materials added to fuel ethanol to make it unsuitable for beverage use but not unsuitable for automotive use.
3.2.2 denatured fuel ethanol - fuel ethanol made unfit for beverage use by the addition of denaturants.
3.2.3 fuel ethanol - ethanol with impurities common to its production (including water but excluding denaturants).
3.2.4 impurities - in commercially produced fuel ethanol compounds other than ethanol or denaturants present such as methanol and fusel oil (for example, amyl and isoamyl alcohols).
3.2.5 pHe - a measure of the acid strength of alcohol fuels.
