ASTM D7212-2007 用低背景比例计数器的能量色散X射线荧光光谱测定法测定汽车燃料中低硫的标准试验方法

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【英文标准名称】:StandardTestMethodforLowSulfurinAutomotiveFuelsbyEnergy-DispersiveX-rayFluorescenceSpectrometryUsingaLow-BackgroundProportionalCounter
【原文标准名称】:用低背景比例计数器的能量色散X射线荧光光谱测定法测定汽车燃料中低硫的标准试验方法
【标准号】:ASTMD7212-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D02.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:汽车燃料;背景;计数器;能量;低硫;比例计数器;销售计数器;测试;X射线;X射线荧光;X射线荧光光谱法;X射线光谱法
【英文主题词】:analysis;automotivefuels;energydispersive;lowbackground;lowsulfur;spectrometry;X-ray
【摘要】:Thistestmethoddeterminestotalsulfurinautomotivefuelswithatypicalanalysistimearound10minpersample.Thequalityofautomotivefuelisrelatedtotheamountofsulfurpresent.Knowledgeofsulfurlevelisnecessaryforprocessingpurposes.Sulfurlevelinautomotivefuelsaffectsperformancecharacteristicsandairquality.Federal,state,andlocalagenciesregulatethelevelofsulfurinfueldeliveredatthepump.Thistestmethodcanbereferencedinspecificationdocumentstodetermineifthematerialmeetsthedesiredsulfurcontent.Ifthistestmethodisappliedtopetroleummatriceswithsignificantlydifferentcompositiontothoseusedintheinterlaboratoryprecisionstudy,thenthecautionandrecommendationsinSection6shouldbeobservedwheninterpretingtheresults.1.1Thistestmethodspecifiesanenergy-dispersiveX-rayfluorescence(EDXRF)methodforthedeterminationofthetotalsulfurcontentofautomotivefuelswithaconcentrationrangefrom7mg/kgto50mg/kg.1.1.1Thepooledlimitofquantitationofthistestmethodasobtainedbystatisticalanalysisofinterlaboratorytestresultsis7mg/kgsulfur.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thepreferredconcentrationunitsaremg/kgsulfur.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E31
【国际标准分类号】:75_160_20
【页数】:5P.;A4
【正文语种】: