1、Designation:D550120Standard Test Method forDetermination of Ethanol and Methanol Content in FuelsContaining Greater than 20%Ethanol by GasChromatography1This standard is issued under the fixed designation D5501;the number immediately following the designation indicates the year oforiginal adoption o
2、r,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 the ethanolcontent of hydrocarbon blend
3、s containing greater than 20%ethanol.This method is applicable to denatured fuel ethanol,ethanol fuel blends,and mid-level ethanol blends.1.1.1 Ethanol is determined from 20%by mass to 100%bymass and methanol is determined from 0.01%by mass to0.6%by mass.Equations used to convert these individualalc
4、ohols from percent by mass to percent by volume areprovided.NOTE1Fuels containing less than 20%ethanol may be quantifiedusing Test Method D5599,and less than 12%ethanol may be quantifiedusing Test Method D4815.1.2 This test method does not purport to identify all indi-vidual components common to eth
5、anol production or thosecomponents that make up the denaturant or hydrocarbonconstituent of the fuel.1.3 Water cannot be determined by this test method andshall be measured by a procedure such as Test Method D7923,E203,or E1064 and the result used to correct the concentra-tions determined by this me
6、thod.1.4 This test method is inappropriate for impurities that boilat temperatures higher than 225 C or for impurities that causepoor or no response in a flame ionization detector,such aswater.1.5 The values stated in SI units are to be regarded as thestandard.The values given in parentheses are pro
7、vided forinformation purposes only.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 regul
8、atory limitations prior to 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 Org
9、anization 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 MethodD1364 Test Method for Water in Volatile Solvents(KarlFischer Reagent Titrati
10、on Method)D4052 Test Method for Density,Relative Density,and APIGravity of Liquids by Digital Density MeterD4057 Practice for Manual Sampling of Petroleum andPetroleum ProductsD4175 Terminology Relating to Petroleum Products,LiquidFuels,and LubricantsD4307 Practice for Preparation of Liquid Blends f
11、or Use asAnalytical StandardsD4626 Practice for Calculation of Gas ChromatographicResponse FactorsD4806 Specification for Denatured Fuel Ethanol for Blend-ing with Gasolines for Use as Automotive Spark-IgnitionEngine FuelD4815 Test Method for Determination of MTBE,ETBE,TAME,DIPE,tertiary-Amyl Alcoho
12、l and C1to C4Alco-hols in Gasoline by Gas ChromatographyD5599 Test Method for Determination of Oxygenates inGasoline by Gas Chromatography and Oxygen SelectiveFlame Ionization DetectionD5798 Specification for Ethanol Fuel Blends for Flexible-Fuel Automotive Spark-Ignition EnginesD6299 Practice for A
13、pplying Statistical Quality Assurance1This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products,Liquid Fuels,and Lubricants and is the direct responsibility ofSubcommittee D02.04.0L on Hydrocarbon Analysis.Current edition approved May 1,2020.Published May 2020.Originallya
14、pproved in 1994.Last previous edition approved in 2016 as D5501 12(2016).DOI:10.1520/D5501-20.2For 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 Summ
15、ary 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
16、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.and Control Charting Techniques to Evaluate AnalyticalMeasurement System PerformanceD6792 Practice for Quality Management Systems in Petro-leum Products,Liquid Fuels,and Lubricants TestingLaboratoriesD7923 Test Method for Water in Ethanol and HydrocarbonBlends by Karl Fischer Titratio