ASTM_D_1319_-_20a.pdf

Designation:D131920aStandard Test Method forHydrocarbon Types in Liquid Petroleum Products byFluorescent Indicator Adsorption1This standard is issued under the fixed designation D1319;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.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope*1.1 This test method covers the determination of hydrocar-bon types of total aromatics,total olefins,and total saturates inpetroleum fractions that distill below 315 C.Samples contain-ing dark-colored components that interfere in reading thechromatographic bands cannot be analyzed.NOTE1For the determination of olefins below 0.3%by volume,othertest methods are available,such as Test Method D2710.1.2 This test method is intended for use with full boilingrange products.Cooperative data have established that theprecision statement does not apply to narrow boiling petroleumfractions near the 315 C limit.Such samples are not elutedproperly,and results are erratic.1.3 This test method is also applicable to automotive spark-ignition engine fuels which are gasolines with and withoutblended oxygenates,such as alcohols and ethers(for exampleMTBE,ethanol)and where gasoline is the primary componentby volume in the blend.1.4 The applicability of this test method to products derivedfrom fossil fuels other than petroleum,such as coal,shale,ortar sands,has not been determined,and the precision statementmay or may not apply to such products.1.5 This test method has two precision statements depictedin Table 3 and Table 4.1.5.1 Table 3 is applicable to fuels that do not containoxygenated blending components over the test method concen-tration working ranges from 5%to 99%by volume aromatics,1%to 55%by volume olefins,and 1%to 95%by volumesaturates in petroleum fractions and with a final boiling point of315 C.It may or may not apply to automotive gasolinescontaining lead antiknock mixtures.1.5.2 Table 4 precision was derived from an ILS containingonly blended oxygenated(for example,MTBE,ethanol)andnon-oxygenated automotive spark-ignition engine fuels(gaso-lines)and is applicable only in the test method concentrationworking range of 13%to 40%by volume aromatics,4%to33%by volume olefins,and 45%to 68%by volumesaturates.1.5.3 Non-oxygenated automotive spark-ignition engine fu-els(gasolines)outside the inclusive valid test result reportingconcentration ranges of Table 4 may use the precision in Table3 and its applicable concentration ranges.1.6 The oxygenated blending components,methanol,ethanol,methyl-tert-butylether(MTBE),tert-amylmethylether(TAME),and ethyl-tert-butylether(ETBE),do not interferewith the determination of hydrocarbon types at concentrationsnormally found in commercial blends.These oxygenatedcomponents are not detected since they elute with the alcoholdesorbent.Other oxygenated compounds shall be individuallyverified.When samples containing oxygenated blending com-ponents are analyzed,correct the results to a total-sample basis.1.7 This test method includes a relative bias section basedon Practice D6708 accuracy assessment between Test MethodD1319 and Test Method D5769 for total aromatics in spark-ignition engine fuels as a possible Test Method D1319 alter-native to Test Method D5769 for U.S.EPA spark-ignitionengine fuel regulations reporting.The Practice D6708 derivedcorrelation equation is only applicable for fuels in the totalaromatic concentration range from 3.3%to 34.4%by volumeas measured by Test Method D1319 and the distillationtemperature T95,at which 95%of the sample has evaporated,ranges from 149.1 C to 196.6 C(300.3 F to 385.8 F)whentested according to Test Method D86.1.7.1 The applicable Test Method D5769 range for totalaromatics is 3.7%to 29.4%by volume as reported by TestMethod D5769 and the distillation temperature T95values,atwhich 95%of the sample has evaporated,when testedaccording to Test Method D86 is from 149.1 C to 196.6 C(300.3 F to 385.8 F).1.7.2 Regulations may change over time and the user isadvised to verify current regulatory requirements.1.8 WARNINGMercury has been designated by manyregulatory agencies as a hazardous substance that can cause1This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products,Liquid Fuels,and Lubricants and is the direct responsibility ofSubcommittee D02.04.0C on Liquid Chromatography.Current edition approved Aug.1,2020.Published September 2020.Originallyapproved in 1954.Last previous edition approved in 2020 as D1319 20.DOI:10.1520/D1319-20A.*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 internat