ASTM_D_5769_-_20.pdf

Designation:D576920Standard Test Method forDetermination of Benzene,Toluene,and Total Aromatics inFinished Gasolines by Gas Chromatography/MassSpectrometry1This standard is issued under the fixed designation D5769;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 test method covers the determination of benzene,toluene,other specified individual aromatic compounds,andtotal aromatics in finished motor gasoline,including gasolinescontainingoxygenatedblendingcomponents,bygaschromatography/mass spectrometry(GC/MS).1.2 This test method has been tested for the followingconcentration ranges,in liquid volume percent,for the follow-ing aromatics:benzene,0.1%to 4%;toluene,1%to 13%;and total(C6 to C12)aromatics,10%to 42%.The round-robin study did not test the method for individual hydrocarbonprocess streams in a refinery,such as reformates,fluid catalyticcracked naphthas,and so forth,used in the blending ofgasolines.1.3 Results are reported to the nearest 0.01%for benzeneand 0.1%for the other aromatics by liquid volume.1.4 This test method includes a relative bias section for EPAspark-ignition engine fuel benzene regulations reporting basedon Practice D6708 accuracy assessment between Test MethodD5769 and Test Method D3606 as a possible Test MethodD5769 alternative to Test Method D3606.The Practice D6708derived correlation equation is only applicable for blendedfuels in the benzene concentration range from 0.0%to 2.50%by volume as measured by Test Method D5769.The applicableTest Method D3606 range for benzene is from 0.0%to 2.47%by volume as reported by Test Method D3606.1.5 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.6 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 its use.1.7 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:2D1298 Test Method for Density,Relative Density,or APIGravity of Crude Petroleum and Liquid Petroleum Prod-ucts by Hydrometer MethodD3606 Test Method for Determination of Benzene andToluene in Spark Ignition Fuels by Gas ChromatographyD4052 Test Method for Density,Relative Density,and APIGravity of Liquids by Digital Density MeterD4057 Practice for Manual Sampling of Petroleum andPetroleum ProductsD4307 Practice for Preparation of Liquid Blends for Use asAnalytical StandardsD6708 Practice for Statistical Assessment and Improvementof Expected Agreement Between Two Test Methods thatPurport to Measure the Same Property of a Material3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 aromatic,nany hydrocarbon compound containing abenzene or naphthalene ring.3.1.2 calibrated aromatic component,nthe individual aro-matic components that have a specific calibration.3.1.3 cool on-column injector,nin gas chromatography,adirect sample introduction system that is set at a temperature ator below the boiling point of solutes or solvent on injection andthen heated at a rate equal to or greater than the column.1This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products,Liquid Fuels,and Lubricants and is the direct responsibility ofSubcommittee D02.04.0M on Mass Spectrometry.Current edition approved June 1,2020.Published June 2020.Originallyapproved in 1995.Last previous edition approved in 2015 as D5769 15.DOI:10.1520/D5769-20.2For 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.Normally used to eliminate boiling point discrimination oninjection or to reduce adsorption on glass liners withininjectors,or both.The sample is injected directly into