Designation:D6520−18StandardPracticefortheSolidPhaseMicroExtraction(SPME)ofWateranditsHeadspacefortheAnalysisofVolatileandSemi-VolatileOrganicCompounds1ThisstandardisissuedunderthefixeddesignationD6520;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticecoversproceduresfortheextractionofvolatileandsemi-volatileorganiccompoundsfromwateranditsheadspaceusingsolidphasemicroextraction(SPME).1.2ThecompoundsofinterestmusthaveagreateraffinityfortheSPME-absorbentpolymeroradsorbentorcombinationsofthesethanthewaterorheadspacephaseinwhichtheyreside.1.3NotalloftheanalytesthatcanbedeterminedbySPMEareaddressedinthispractice.Theapplicabilityoftheabsor-bentpolymer,adsorbent,orcombinationthereof,toextractthecompound(s)ofinterestmustbedemonstratedbeforeuse.1.4Thispracticeprovidessampleextractssuitableforquantitativeorqualitativeanalysisbygaschromatography(GC)orgaschromatography-massspectrometry(GC-MS).1.5Whereused,itistheresponsibilityoftheusertovalidatetheapplicationofSPMEtotheanalysisofinterest.1.6ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeSection12.1.8Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D1129TerminologyRelatingtoWaterD1193Specificationf...
