1、Designation:D262221Standard Test Method forSulfur in Petroleum Products by Wavelength DispersiveX-ray Fluorescence Spectrometry1This standard is issued under the fixed designation D2622;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision
2、,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.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope*1.1 This test method covers
3、the determination of total sulfurin petroleum and petroleum products that are single-phase andeither liquid at ambient conditions,liquefiable with moderateheat,or soluble in hydrocarbon solvents.These materials caninclude diesel fuel,jet fuel,kerosene,other distillate oil,naphtha,residual oil,lubric
4、ating base oil,hydraulic oil,crudeoil,unleaded gasoline,gasoline-ethanol blends,and biodiesel.1.2 The range of this test method is between the PLOQvalue(calculated by procedures consistent with PracticeD6259)of 3 mg/kg total sulfur and the highest level sample inthe round robin,4.6%by weight total s
5、ulfur.NOTE1Instrumentation covered by this test method can vary insensitivity.The applicability of the test method at sulfur concentrationsbelow 3 mg kg may be determined on an individual basis for WDXRFinstruments capable of measuring lower levels,but precision in this testmethod does not apply.1.2
6、.1 The values of the limit of quantitation(LOQ)andmethod precision for a specific laboratorys instrument dependson instrument source power(low or high power),sample type,and the practices established by the laboratory to perform themethod.1.3 Samples containing more than 4.6%by mass sulfurshould be
7、diluted to bring the sulfur concentration of thediluted material within the scope of this test method.Samplesthat are diluted can have higher errors than indicated in Section15 than non-diluted samples.1.4 Volatile samples(such as high vapor pressure gasolinesor light hydrocarbons)may not meet the s
8、tated precisionbecause of selective loss of light materials during the analysis.1.5 Afundamental assumption in this test method is that thestandard and sample matrices are well matched,or that thematrix differences are accounted for(see 13.2).Matrix mis-match can be caused by C/H ratio differences b
9、etween samplesand standards or by the presence of other interfering heteroa-toms or species(see Table 1).1.6 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.7 This standard does not purport to address all of thesafety concerns,
10、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.1.8 This international standard was developed in accor-dance with internatio
11、nally 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:2D4057 Practice
12、 for Manual Sampling of Petroleum andPetroleum ProductsD4175 Terminology Relating to Petroleum Products,LiquidFuels,and LubricantsD4177 Practice for Automatic Sampling of Petroleum andPetroleum ProductsD4294 Test Method for Sulfur in Petroleum and PetroleumProducts by Energy Dispersive X-ray Fluores
13、cence Spec-trometryD4927 Test Methods for Elemental Analysis of LubricantandAdditiveComponentsBarium,Calcium,Phosphorus,Sulfur,and Zinc by Wavelength-DispersiveX-Ray Fluorescence SpectroscopyD6259 Practice for Determination of a Pooled Limit ofQuantitation for a Test Method1This test method is under
14、 the jurisdiction of ASTM Committee D02 onPetroleum Products,Liquid Fuels,and Lubricants and is the direct responsibility ofSubcommittee D02.03 on Elemental Analysis.Current edition approved Dec.1,2021.Published January 2022.Originallyapproved in 1967.Last previous edition approved in 2016 as D2622
15、16.DOI:10.1520/D2622-21.2For 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 t
16、he 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.1?D6299 Practice for Applying Statistical Quality Assur
