ASTM_D_7618_-_13_2021.pdf

Designation:D761813(Reapproved 2021)An American National StandardStandard Specification forEthyl Tertiary-Butyl Ether(ETBE)for Blending with AviationSpark-Ignition Engine Fuel1This standard is issued under the fixed designation D7618;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.Scope1.1 This specification covers requirements for fuel gradeethyl tertiary-butyl ether(ETBE)that may be used for blendingwith fuels for aviation spark-ignition engines where permis-sible.Other ETBE grades available in the marketplace that donot comply with the requirements of this specification,are notsuitable for blending with aviation fuels.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 standard does not purport to address all of thesafety concerns,if any,associated with its use.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.1.4 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: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 MethodD4052 Test Method for Density,Relative Density,and APIGravity of Liquids by Digital Density MeterD4057 Practice for Manual Sampling of Petroleum andPetroleum ProductsD4171 Specification for Fuel System Icing InhibitorsD4176 Test Method for Free Water and Particulate Contami-nation in Distillate Fuels(Visual Inspection Procedures)D4177 Practice for Automatic Sampling of Petroleum andPetroleum ProductsD5854 Practice for Mixing and Handling of Liquid Samplesof Petroleum and Petroleum ProductsD7796 Test Method for Analysis of Ethyl tert-Butyl Ether(ETBE)by Gas ChromatographyE203 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 ethanol,nchemical compound C2H5OH.3.1.2 ethyl tertiary-butyl ether(ETBE),nchemical com-pound CH3CH2OC(CH3)3.3.1.3 methanol,nchemical compound CH3OH.3.1.4 methyl tertiary-butyl ether(MTBE),nchemical com-pound CH3OC(CH3)3.3.1.5 oxygenate,noxygen-containing ashless,organiccompound,such as an alcohol or ether,which may be used asa fuel or fuel supplement.3.1.6 tertiary-butyl alcohol(TBA),nchemical compound(CH3)3COH.4.Detailed Requirements4.1 ETBE that may be used for blending with fuels foraviation spark-ignition engines shall conform to the require-ments of Table 1.1This specification is under the jurisdiction of ASTM Committee D02 onPetroleum Products,Liquid Fuels,and Lubricants and is the direct responsibility ofSubcommittee D02.J0.04 on Additives and Electrical Properties.Current edition approved July 1,2021.Published July 2021.Originally approvedin 2010.Last previous edition approved in 2017 as D7618 13(2017).DOI:10.1520/D7618-13R21.2For 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.Copyright 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.15.Workmanship5.1 The ETBE shall be visually free of undissolved water,sediment,and suspended matter.It shall be clear and bright atthe ambient temperature or 21 C,whichever is lower.5.2 The specification defines only a basic purity for thisproduct.The product shall be free of any adulterant orcontaminant that could render the material unacceptable for theintended application.6.Sampling,Containers,and Sample Handling6.1 The user is strongly advised to review all intended testmethods prior to sampling in order to understand the impor-tance and effects of samp