ASTM D5797 Standard Specification for Fuel Methanol (M70-M85)
ASTM D5797 Standard Specification for Fuel Methanol (M70-M85) for Automotive Spark-Ignition Engines
1. Scope
1.1 This specification covers a fuel blend, nominally 70 to 85 volume % methanol and 30 to 14 volume % hydrocarbons for use in ground vehicles with automotive spark-ignition engines. Appendix X1 discusses the significance of the properties specified. Appendix X2 presents the current status in the development of a luminosity test procedure for M70-M85.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 The following precautionary caveat pertains only to the test method portions - Annex A1, Annex A2, Annex A3, and Appendix X2 of this specification.This 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 and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents
2.1 ASTM Standards:
D86 Test Method for Distillation of Petroleum Products at Atmospheric Pressure
D130 Test Method for Corrosiveness to Copper from Petroleum Products by Copper Strip Test
D381 Test Method for Gum Content in Fuels by Jet Evaporation
D512 Test Methods for Chloride Ion In Water
D525 Test Method for Oxidation Stability of Gasoline (Induction Period Method)
D872 Method of Test for Sulfonation Index of Road Tars
D1193 Specification for Reagent Water
D1266 Test Method for Sulfur in Petroleum Products (Lamp Method)
D1613 Test Method for Acidity in Volatile Solvents and Chemical Intermediates Used in Paint, Varnish, Lacquer, and Related Products
D2622 Test Method for Sulfur in Petroleum Products by Wavelength Dispersive X-ray Fluorescence Spectrometry
D3120 Test Method for Trace Quantities of Sulfur in Light Liquid Petroleum Hydrocarbons by Oxidative Microcoulometry
D3231 Test Method for Phosphorus in Gasoline
D4057 Practice for Manual Sampling of Petroleum and Petroleum Products
D4177 Practice for Automatic Sampling of Petroleum and Petroleum Products
D4306 Practice for Aviation Fuel Sample Containers for Tests Affected by Trace Contamination
D4307 Practice for Preparation of Liquid Blends for Use as Analytical Standards
D4626 Practice for Calculation of Gas Chromatographic Response Factors
D4814 Specification for Automotive Spark-Ignition Engine Fuel
D4815 Test Method for Determination of MTBE, ETBE, TAME, DIPE, tertiary-Amyl Alcohol and C1 to C4 Alcohols in Gasoline by Gas Chromatography
D4929 Test Methods for Determination of Organic Chloride Content in Crude Oil
D4953 Test Method for Vapor Pressure of Gasoline and Gasoline-Oxygenate Blends (Dry Method)
D5059 Test Methods for Lead in Gasoline by X-Ray Spectroscopy
D5190 Test Method for Vapor Pressure of Petroleum Products (Automatic Method)
D5191 Test Method for Vapor Pressure of Petroleum Products (Mini Method)
D5453 Test Method for Determination of Total Sulfur in Light Hydrocarbons, Spark Ignition Engine Fuel, Diesel Engine Fuel, and Engine Oil by Ultraviolet Fluorescence
D5854 Practice for Mixing and Handling of Liquid Samples of Petroleum and Petroleum Products
E 203 Test Method for Water Using Volumetric Karl Fischer Titration
E 355 Practice for Gas Chromatography Terms and Relationships
E 1145 Specification for Denatured Ethyl Alcohol, Formula 3A4
3. Terminology
3.1 Definitions:
3.1.1 methanol, n - methyl alcohol, the chemical compound CH3OH.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 aliphatic ether - an oxygen-containing, ashless, organic compound in which the oxygen atom is interposed between two carbon atoms (organic groups), has the general formula CnH2n+2O with n being 5 to 8, and in which the carbon atoms are connected in open chains and not closed rings. 3.2.1.1 Discussion - Aliphatic compounds can be straight or branched chains and saturated or unsaturated. The term aliphatic ether, as used in this specification, refers only to the saturated compounds.
3.2.2 fuel methanol (M70-M85) - a blend of methanol and hydrocarbons of which the methanol portion is nominally 70 to 85 volume %.
3.2.3 higher alcohols - aliphatic alcohols of the general formula CnH2 n+1OH with n being 2 to 8.
3.2.4 hydrocarbon - those components in a methanol-hydrocarbon blend that contain only hydrogen and carbon.
