Designation:D7536−09StandardTestMethodforChlorineinAromaticsbyMonochromaticWavelengthDispersiveX-rayFluorescenceSpectrometry1ThisstandardisissuedunderthefixeddesignationD7536;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationofchlorinebymonochromatic,wavelength-dispersiveX-rayfluorescence(MWDXRF)spectrometryinaromatichydrocarbons,theirderivatives,andrelatedchemicals.1.2Thistestmethodisapplicabletosampleswithchlorineconcentrationsfrom0.5mg/kgto15mg/kg.Higherchlorineconcentrationscanbedeterminedbyquantitativelydilutingthesamplewithasuitablesolvent.Inapreliminaryrobustnessstudy,thelimitofdetectionwasestimatedtobe0.06mg/kg.1.3Indeterminingtheconformanceofthetestresultsusingthismethodtoapplicablespecifications,resultsshallberoundedoffinaccordancewiththerounding-offmethodofPracticeE29.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.Forspecifichazardinformation,seeSection9.2.ReferencedDocuments2.1ASTMStandards:2D3437PracticeforSamplingandHandlingLiquidCyclicProductsD4790TerminologyofAromaticHydrocarbonsandRelatedChemicalsD6809GuideforQualityControlandQualityAssuranceProceduresforAromaticHydrocarbonsandRelatedMa-terialsE29PracticeforUsingSignificantDigitsinTestDatatoDetermineConformancewithSpecifications2.2OtherDocuments:3OSHARegulations,29CFRparagraphs1910.1000and1910.12003.Terminology3.1SeeTerminologyD4790fordefinitionsoftermsusedinthistestmethod.4.SummaryofTestMethod4.1AmonochromaticX-raybeamwithawavelengthsuit-abletoexcitethe...
