ASTM-D5797 2007(Redline)

This specification covers the methanol fuel blend, M70-M85, for use in ground vehicles that run on automotive spark-ignition engines. Fuels are grouped into three vapor pressure classes (Classes 1, 2, and 3) on the basis of seasonal and geographical volatility. The fuel blends shall undergo chemical analysis for methanol, higher alcohols, hydrocarbon/aliphatic ether, acidity as acetic acid, solvent washed and unwashed gum content, total chlorine as chloride, lead, phosphorus, water, sulfur, and inorganic chloride. The product’s appearance shall be clear and bright, visibly free of suspended or precipitated contaminants.

This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

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.

1.4 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 (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

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 Test Method for 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