ASTM_D_5983_-_15.pdf

Designation:D598315Standard Specification forMethyl Tertiary-Butyl Ether(MTBE)for DownstreamBlending for Use in Automotive Spark-Ignition Engine Fuel1This 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 commerce,terminalblending,or downstream blending with fuels for spark-ignitionengines.Other MTBE grades may be available for blendingthat are not covered by this specification.1.2 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.2.Referenced Documents2.1 ASTM Standards:2D130 Test Method for Corrosiveness to Copper from Petro-leum Products by Copper Strip TestD156 Test Method for Saybolt Color of Petroleum Products(Saybolt Chromometer Method)D381 Test Method for Gum Content in Fuels by Jet Evapo-rationD1298 Test Method for Density,Relative Density,or APIGravity of Crude Petroleum and Liquid Petroleum Prod-ucts by Hydrometer MethodD4045 Test Method for Sulfur in Petroleum Products byHydrogenolysis and Rateometric ColorimetryD4052 Test Method for Density,Relative Density,and APIGravity of Liquids by Digital Density MeterD4057 Practice for Manual Sampling of Petroleum andPetroleum ProductsD4176 Test Method for Free Water and Particulate Contami-nation in Distillate Fuels(Visual Inspection Procedures)D4177 Practice for Automatic Sampling of Petroleum andPetroleum ProductsD4306 Practice for Aviation Fuel Sample Containers forTests Affected by Trace ContaminationD4814 Specification for Automotive Spark-Ignition EngineFuelD4953 Test Method for Vapor Pressure of Gasoline andGasoline-Oxygenate Blends(Dry Method)D5441 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 SpectrometryE203 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 Definitions:3.1.1 methanol,nthe chemical compound CH3OH.3.1.2 methyl tertiary-butyl ether(MTBE),nthe chemicalcompound(CH3)3COCH3C5H12O.3.1.3 oxygenate,nan oxygen-containing ashless,organiccompound,such as an alcohol or ether,which may be used asa fuel or fuel supplement.4.Performance Requirements4.1 Methyl tertiary-butyl ether utilized in commerce,termi-nal blending,or downstream blending with fuels for groundvehicles equipped with spark-ignition engines shall conform tothe requirements of Table 1.NOTE1Individual applications may require a more restrictive sulfurlimit.These requirements are to be negotiated between buyer and seller.5.Workmanship5.1 At the point of custody transfer,the MTBE shall bevisually free of undissolved water,sediment,suspended orundissolved matter.It shall be clear and bright at the fueltemperature at the point of custody transfer or at a lowertemperature agreed upon by the purchaser and seller.NOTE2Fuel components should be resistant to phase separation or1This 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 Oct.1,2015.Published October 2015.Originallyapproved in 1996.Last previous edition approved in 2013 as D5983 13.DOI:10.1520/D5983-15.2For 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 States1 undissolved matter at the lowest temperatures to which it is likely to besubjected,dependent on the time and place of its intended use.SeeSpecification D4814,Table X7.1 for guidance.NOTE3Solubility is temperature dependent.As this fuel componentcools,water and some high molecular weight additives can becomeinsoluble.5.2 The specification defines only a basic purity for thisproduct.The product shall be free of any adulterant orcontaminant that can render the material unacceptable for itscommonly used applications.5.3 Manufacturers and importers of MTBE shall avoidcontamination by silicon-containing materials.Silicon con-tamination of gasoline-oxygenate blends has led to fouledvehicle components(for ex