1、Designation:D5501121Standard 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
2、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.1NOTEEditorial corrections were made to 7.4.3 and 7.5 in July 2013.1.Scope*1.1 This test method
3、 covers the determination of the ethanolcontent of hydrocarbon blends 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 mass%to 100 mass%and methanol is determined from 0.01 mass
4、%to 0.6 mass%.Equations used to convert these individual alcohols frommass%to volume%are provided.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 al
5、l indi-vidual components common to ethanol 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 D1364and the result used to correct the concentrations
6、 determined bythis method.1.4 This test method is inappropriate for impurities that boilat temperatures higher than 225C 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
7、 parentheses are provided 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 and health practices and determine the applica-bility of
8、 regulatory limitations prior to use.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 Titration Method)D405
9、2 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,PetroleumProducts,and LubricantsD4307 Practice for Preparation of Liquid Blends for Use asAnalytic
10、al 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 Alcohol and C1to C4Alco
11、-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 Applying Statistic
12、al Quality Assuranceand Control Charting Techniques to Evaluate AnalyticalMeasurement System Performance1This 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
13、.Current edition approved Nov.1,2012.Published March 2013.Originallyapproved in 1994.Last previous edition approved in 2009 as D5501 09.DOI:10.1520/D5501-12E01.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of AST
14、MStandards 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 D6792 Practice for Quality Syst
15、em in Petroleum Productsand Lubricants Testing LaboratoriesE203 Test Method for Water Using Volumetric Karl FischerTitrationE355 Practice for Gas Chromatography Terms and Relation-shipsE594 Practice for Testing Flame Ionization Detectors Usedin Gas or Supercritical Fluid ChromatographyE1064 Test Met
16、hod for Water in Organic Liquids by Coulo-metric Karl Fischer TitrationE1510 Practice for Installing Fused Silica Open TubularCapillary Columns in Gas Chromatographs3.Terminology3.1 DefinitionsThis test method makes reference to manycommon chromatographic procedures,terms,and relation-ships.Detailed definitions can be found in TerminologyD4175,and Practices E355 and E594.3.2 Definitions:3.2.1 mass response factor(MRF),nconstant of propor-tionality that converts area to mass percent.3.2.2 relativ
