ASTM_D_5983_-_21.pdf

Designation:D598321Standard Specification forMethyl Tertiary-Butyl Ether(MTBE)for Blending WithGasolines for Use as Automotive Spark-Ignition EngineFuel1This standard is issued under the fixed designation D5983;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,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 requirements for fuel grademethyl tertiary-butyl ether utilized in blending with gasolinesat 1%to 15%by volume(equivalent to 2.7%by weightoxygen)for use as automotive spark-ignition engine fuelcovered by Specification D4814 as well as other automotivefuel applications involving MTBE.Other MTBE grades maybe available for blending that are not covered by this specifi-cation.1.2 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.3 This international standard was developed in accor-dance with internationally recognized principles on 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:2D156 Test Method for Saybolt Color of Petroleum Products(Saybolt Chromometer Method)D381 Test Method for Gum Content in Fuels by Jet Evapo-rationD2622 Test Method for Sulfur in Petroleum Products byWavelength Dispersive X-ray Fluorescence SpectrometryD4045 Test Method for Sulfur in Petroleum Products byHydrogenolysis and Rateometric ColorimetryD4057 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 ContaminationD4814 Specification for Automotive Spark-Ignition EngineFuelD5441 Test Method for Analysis of Methyl Tert-Butyl Ether(MTBE)by Gas ChromatographyD5854 Practice for Mixing and Handling of Liquid Samplesof Petroleum and Petroleum ProductsD7757 Test Method for Silicon in Gasoline and RelatedProducts by Monochromatic Wavelength DispersiveX-ray Fluorescence SpectrometryD7923 Test Method for Water in Ethanol and HydrocarbonBlends by Karl Fischer TitrationE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE203 Test Method for Water Using Volumetric Karl FischerTitrationE300 Practice for Sampling Industrial ChemicalsE1064 Test Method for Water in Organic Liquids by Coulo-metric Karl Fischer Titration3.Terminology3.1 For general terminology,refer to Terminology D4175.NOTE1The user is advised that the definitions used by variousindustries,marketers,and regulatory bodies can differ from those specificto this specification.It is the responsibility of the user to ensure that theterms used in a particular context are clearly understood.3.2 Definitions:3.2.1 methanol,nmethyl alcohol,the chemical compoundCH3OH.D57973.2.2 methyl tertiary-butyl ether(MTBE),nthe chemicalcompound CH3OC(CH3)3.3.2.2.1 DiscussionMTBE is also known as 2-methoxy-2-methylpropane.3.2.3 oxygenate,na molecule composed solely of carbon,hydrogen,and oxygen.D48141This specification is under the jurisdiction of ASTM Committee D02 onPetroleum Products,Liquid Fuels,and Lubricants and is the direct responsibility ofSubcommittee D02.A0.02 on Oxygenated Fuels and Components.Current edition approved July 1,2021.Published July 2021.Originally approvedin 1996.Last previous edition approved in 2018 as D5983 18.DOI:10.1520/D5983-21.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.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 international 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)Committee.13.2.3.1 DiscussionIn this standard,the oxygenate of inter-est is MTBE.4.Performance Requirements4.1 Methyl tertiary-butyl ether utilized with fuels forground vehicles equipped with spark-ignition engines shallconform to the requirements of Table 1.4.2 Other PropertiesLimits more restrictive than thosespecified in Table 1,or the specification of additionalproperties,may be agreed upon between the supplier and thepurchaser.4.3 For purposes of determining conformance with t