ASTM D5797-16
(Specification)Standard Specification for Methanol Fuel Blends (M51–M85) for Methanol-Capable Automotive Spark-Ignition Engines
Standard Specification for Methanol Fuel Blends (M51–M85) for Methanol-Capable Automotive Spark-Ignition Engines
ABSTRACT
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.
SCOPE
1.1 This specification covers the requirements for automotive fuel blends of methanol and gasoline for use in ground vehicles equipped with methanol-capable flexible-fuel, and dedicated methanol spark-ignition engines. Fuel produced to this specification contains 51 % to 85 % by volume methanol. This fuel is sometimes referred to at retail as “M85.” Appendix X1 discusses the significance of the properties specified. Appendix X2 presents the current status in the development of a luminosity test procedure (flame visibility) for methanol fuel blends (M51–M85).
1.2 The vapor pressure of methanol fuel blends is varied for seasonal climatic changes. Vapor pressure is increased at lower temperatures to ensure adequate vehicle operability and safety. Methanol content and selection of gasoline blendstocks are adjusted by the blender to meet these vapor pressure requirements.
1.3 The United States government has established various programs for alternative fuels. Many of the definitions of alternative fuel used by these programs can be more or less restrictive than the requirements of this specification. See Annex A1 for additional information on alternative fuels containing methanol.
1.4 The values stated in SI units are to be regarded as the standard.
1.4.1 Exception—Non-SI units are provided for information only. In most cases, U.S. federal regulations specify non-SI units.
1.5 The following precautionary caveat pertains only to the test method portions–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.
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Designation:D5797 −16
Standard Specification for
Methanol Fuel Blends (M51–M85) for Methanol-Capable
1
Automotive Spark-Ignition Engines
This standard is issued under the fixed designation D5797; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* 2. Referenced Documents
2,3
1.1 This specification covers the requirements for automo- 2.1 ASTM Standards:
tive fuel blends of methanol and gasoline for use in ground D86Test Method for Distillation of Petroleum Products and
vehicles equipped with methanol-capable flexible-fuel, and Liquid Fuels at Atmospheric Pressure
dedicated methanol spark-ignition engines. Fuel produced to D130Test Method for Corrosiveness to Copper from Petro-
this specification contains 51% to 85% by volume methanol. leum Products by Copper Strip Test
Thisfuelissometimesreferredtoatretailas“M85.”Appendix D381Test Method for Gum Content in Fuels by Jet Evapo-
X1 discusses the significance of the properties specified. ration
Appendix X2 presents the current status in the development of D525Test Method for Oxidation Stability of Gasoline (In-
a luminosity test procedure (flame visibility) for methanol fuel duction Period Method)
blends (M51–M85). D1193Specification for Reagent Water
D1266TestMethodforSulfurinPetroleumProducts(Lamp
1.2 Thevaporpressureofmethanolfuelblendsisvariedfor
Method)
seasonalclimaticchanges.Vaporpressureisincreasedatlower
D1613Test Method for Acidity in Volatile Solvents and
temperatures to ensure adequate vehicle operability and safety.
Chemical Intermediates Used in Paint, Varnish, Lacquer,
Methanol content and selection of gasoline blendstocks are
and Related Products
adjusted by the blender to meet these vapor pressure require-
D3231Test Method for Phosphorus in Gasoline
ments.
D4057Practice for Manual Sampling of Petroleum and
1.3 The United States government has established various
Petroleum Products
programs for alternative fuels. Many of the definitions of
D4175Terminology Relating to Petroleum Products, Liquid
alternative fuel used by these programs can be more or less
Fuels, and Lubricants
restrictive than the requirements of this specification. See
D4177Practice for Automatic Sampling of Petroleum and
Annex A1 for additional information on alternative fuels
Petroleum Products
containing methanol.
D4306Practice for Aviation Fuel Sample Containers for
Tests Affected by Trace Contamination
1.4 The values stated in SI units are to be regarded as the
standard. D4806Specification for Denatured Fuel Ethanol for Blend-
ing with Gasolines for Use asAutomotive Spark-Ignition
1.4.1 Exception—Non-SI units are provided for information
only. In most cases, U.S. federal regulations specify non-SI Engine Fuel
D4814Specification for Automotive Spark-Ignition Engine
units.
Fuel
1.5 The following precautionary caveat pertains only to the
D4953Test Method for Vapor Pressure of Gasoline and
test method portions–Appendix X2 of this specification. This
Gasoline-Oxygenate Blends (Dry Method)
standard does not purport to address all of the safety concerns,
D5059Test Methods for Lead in Gasoline by X-Ray Spec-
if any, associated with its use. It is the responsibility of the user
troscopy
of this standard to establish appropriate safety and health
D5191Test Method for Vapor Pressure of Petroleum Prod-
practices and determine the applicability of regulatory limita-
ucts (Mini Method)
tions prior to use.
1 2
This specification is under the jurisdiction of ASTM Committee D02 on Reference to the following documents is to be the latest issue unless otherwise
Petroleum Products, Liquid Fuels, and Lubricants and is under the direct responsi- specified.
3
bility of Subcommittee D02.A0.02 on Oxygenated Fuels and Components. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved April 1, 2016. Published April 2016. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1995. Last previous edition approved in 2015 as D5797–15. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/D5797-16. the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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D5797−16
D5453Test Method for Determination of Total Sulfur in clude natural gasoline, raffinate, reformate, naphtha, conven-
Light Hydrocarbons, Spark Ignition Engine Fuel, Diesel tional gasoline blendstock for oxygenated blending (CBOB),
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D5797 − 15 D5797 − 16
Standard Specification for
Methanol Fuel Methanol (M70-M85)Blends (M51–M85) for
1
Methanol-Capable Automotive Spark-Ignition Engines
This standard is issued under the fixed designation D5797; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope*
1.1 This specification covers a fuel blend, nominally 70 to 85 volume % methanol and 30 to 14 volume % hydrocarbons the
requirements for automotive fuel blends of methanol and gasoline for use in ground vehicles with automotive spark-ignition
engines. equipped with methanol-capable flexible-fuel, and dedicated methanol spark-ignition engines. Fuel produced to this
specification contains 51 % to 85 % by volume methanol. This fuel is sometimes referred to at retail as “M85.” 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.(flame visibility) for methanol fuel blends (M51–M85).
1.2 The vapor pressure of methanol fuel blends is varied for seasonal climatic changes. Vapor pressure is increased at lower
temperatures to ensure adequate vehicle operability and safety. Methanol content and selection of gasoline blendstocks are adjusted
by the blender to meet these vapor pressure requirements.
1.3 The United States government has established various programs for alternative fuels. Many of the definitions of alternative
fuel used by these programs can be more or less restrictive than the requirements of this specification. See Annex A1 for additional
information on alternative fuels containing methanol.
1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.4.1 Exception—Non-SI units are provided for information only. In most cases, U.S. federal regulations specify non-SI units.
1.5 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
2,3
2.1 ASTM Standards:
D86 Test Method for Distillation of Petroleum Products and Liquid Fuels 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)
4
D872 Test Method for Test for Sulfonation Index of Road Tars (Withdrawn 1991)
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
1
This specification is under the jurisdiction of ASTM Committee D02 on Petroleum Products, Liquid Fuels, and Lubricants and is under the direct responsibility of
Subcommittee D02.A0.02 on Oxygenated Fuels and Components.
Current edition approved Oct. 1, 2015April 1, 2016. Published October 2015April 2016. Originally approved in 1995. Last previous edition approved in 20132015 as
D5797 – 13.D5797 – 15. DOI: 10.1520/D5797-15.10.1520/D5797-16.
2
Reference to the following documents is to be the latest issue unless otherwise specified.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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