1、Designation:D786221Standard Specification forButanol for Blending with Gasoline for Use as AutomotiveSpark-Ignition Engine Fuel1This standard is issued under the fixed designation D7862;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision
2、,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This specification covers butanol intended to be blendedwith gasoline at 1%to 12.5%by volume for use as anaut
3、omotive spark-ignition engine fuel.1.1.1 Butanol contains 22%by mass oxygen.The masspercent of oxygen of a butanol blend with gasoline depends onthe volume percent of butanol blended,the density of thebutanol isomer,and the density of the base blendstock.1.1.2 The maximum limit on blending is not a
4、performancelimit but a current regulatory limit in the United States.1.2 This specification covers three butanol isomers:1-butanol,2-butanol,and 2-methyl-1-propanol.This specifica-tion specifically excludes 2-methyl-2-propanol(that is,tert-butyl alcohol).1.2.1 Tert-butyl alcohol has different physic
5、al properties(melting point,water miscibility)than the other three isomers.1.3 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.4 This standard does not purport to address all of thesafety concerns,if any,associated with its use
6、.It is theresponsibility of the user of this standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.5 This international standard was developed in accor-dance with internationally recognized principles on
7、 standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D381 Test Method for Gum Content in Fuels by
8、 Jet Evapo-rationD1298 Test Method for Density,Relative Density,or APIGravity of Crude Petroleum and Liquid Petroleum Prod-ucts by Hydrometer MethodD1613 Test Method for Acidity in Volatile Solvents andChemical Intermediates Used in Paint,Varnish,Lacquer,and Related ProductsD2622 Test Method for Sul
9、fur in Petroleum Products byWavelength Dispersive X-ray Fluorescence SpectrometryD3120 Test Method for Trace Quantities of Sulfur in LightLiquid Petroleum Hydrocarbons by Oxidative Microcou-lometryD4052 Test Method for Density,Relative Density,and APIGravity of Liquids by Digital Density MeterD4057
10、Practice for Manual Sampling of Petroleum andPetroleum ProductsD4175 Terminology Relating to Petroleum Products,LiquidFuels,and LubricantsD4177 Practice for Automatic Sampling of Petroleum andPetroleum ProductsD4306 Practice for Aviation Fuel Sample Containers forTests Affected by Trace Contaminatio
11、nD4814 Specification for Automotive Spark-Ignition EngineFuelD5453 Test Method for Determination of Total Sulfur inLight Hydrocarbons,Spark Ignition Engine Fuel,DieselEngine Fuel,and Engine Oil by Ultraviolet FluorescenceD5854 Practice for Mixing and Handling of Liquid Samplesof Petroleum and Petrol
12、eum ProductsD6299 Practice for Applying Statistical Quality Assuranceand Control Charting Techniques to Evaluate Analytical1This specification is under the jurisdiction of ASTM Committee D02 onPetroleum Products,Liquid Fuels,and Lubricants and is the direct responsibility ofSubcommittee D02.A0 on Ga
13、soline and Oxygenated Fuels.Current edition approved April 1,2021.Published April 2021.Originallyapproved in 2013.Last previous edition approved in 2019 as D7862 19.DOI:10.1520/D7862-21.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.
14、org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis in
15、ternational standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Com
16、mittee.1Measurement System PerformanceD7319 Test Method for Determination of Existent and Po-tential Sulfate and Inorganic Chloride in Fuel Ethanol andButanol by Direct Injection Suppressed Ion Chromatog-raphyD7875 Test Method for Determination of Butanol and Ac-etone Content of Butanol for Blending with Gasoline byGas ChromatographyD7923 Test Method for Water in Ethanol and HydrocarbonBlends by Karl Fischer TitrationE29 Practice for Using Significant Digits in Test Data toDetermine Conformance
