1、Designation:D505921Standard Test Methods forLead and Manganese in Gasoline by X-Ray FluorescenceSpectroscopy1This standard is issued under the fixed designation D5059;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last r
2、evision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope*1.1 These test methods cover the determination
3、of lead andmanganese gasoline additives content by X-Ray FluorescenceSpectroscopy(XRF).These test methods cover the determina-tion of the total lead content of a gasoline within the followingconcentration ranges:0.010 g Pb US gal to 5.0 g Pb US gal0.012 g Pb UK gal to 6.0 g Pb UK gal0.0026 g Pb L to
4、 1.32 g Pb Land total manganese content of aviation gasoline within theconcentration range of 25 mg Mn/L to 250 mg Mn/L.1.1.1 TestMethods A andBcovertherangeof0.10 g PbUS gal to 5.0 g Pb US gal.Test Method C covers therange of 0.010 g PbUS gal to 0.50 g Pb US gal.1.1.2 These Methods A,B,and C are ap
5、plicable to gasolinecontaining lead additives.These test methods compensate fornormal variation in gasoline composition and are independentof lead alkyl type.1.1.3 Test Method D is applicable to aviation gasolinecontaining manganese additives.1.2 Test Method A(formerly in withdrawn Test MethodD2599)
6、Sections 5 10.Test Method B(formerly in withdrawn Test MethodD2599)Sections 11 16.Test Method C(formerly in withdrawn Test MethodD3229)Sections 17 23.Test Method DSections 24 29.1.3 The values stated in SI are to be regarded as thestandard.For reporting purposes the values stated in grams perU.S.gal
7、lon are the preferred units in the United States.Notethat in other countries,other units can be preferred.1.4 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,healt
8、h,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.For specific hazard statements,see Sections 5,6,11,and 18.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in t
9、he 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:2D3341 Test Method for Lead in GasolineIodine Mono-chloride MethodD4057 Practic
10、e for Manual Sampling of Petroleum andPetroleum ProductsD4177 Practice for Automatic Sampling of Petroleum andPetroleum ProductsD6299 Practice for Applying Statistical Quality Assuranceand Control Charting Techniques to Evaluate AnalyticalMeasurement System PerformanceD6792 Practice for Quality Mana
11、gement Systems in Petro-leum Products,Liquid Fuels,and Lubricants TestingLaboratories2.2 Federal Standards:340 CFR Part 80 Regulation of Fuels and Fuel Additives3.Summary of Test Method3.1 There are three alternative test methods for lead ingasoline and one method for manganese in aviation gasoline,
12、as follows.3.1.1 Test Method A(Bismuth Internal Standard MethodHigh Concentration)One volume of sample is mixed thor-oughly with an equal volume of bismuth internal standard1These test methods are under the jurisdiction of Committee D02 on PetroleumProducts,Liquid Fuels,and Lubricants and are the di
13、rect responsibility ofSubcommittee D02.03 on Elemental Analysis.Current edition approved April 1,2021.Published April 2021.Originallyapproved in 1990.Last previous edition approved in 2020 as D5059 20.DOI:10.1520/D5059-21.Initially published as D2599 67T and D3229 73,now withdrawn.2For referenced AS
14、TM 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.3Available from U.S.Government Printing Office,Superintendent ofDocuments,732 N.Capi
15、tol St.,NW,Washington,DC 20401-0001,http:/www.access.gpo.gov.*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 inter
16、nationally 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.1solution.The mixture is placed in the X-ray beam and theintensities of the lead L-1radiation at 1.175 and the bismuthL-1radiation at 1.144 are determined.The lead concentra-tion of the sample is measured by comparing the ratio of grosscounting rate at
