Designation:D5241−92(Reapproved2011)StandardPracticeforMicro-ExtractionofWaterforAnalysisofVolatileandSemi-VolatileOrganicCompoundsinWater1ThisstandardisissuedunderthefixeddesignationD5241;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticecoversstandardproceduresforextractionofvolatileandsemi-volatileorganiccompoundsfromwaterusingsmallvolumesofsolvents.1.2Thecompoundsofinterestmusthaveagreatersolubil-ityintheorganicsolventthanthewaterphase.1.3Notallofthesolventsthatcanbeusedinmicroextractionareaddressedinthispractice.Theapplicabilityofasolventtoextractthecompound(s)ofinterestmustbedemon-stratedbeforeuse.1.4Thispracticeprovidessampleextractssuitableforanytechniqueamenabletosolventinjectionsuchasgaschroma-tographyorhighperformanceliquidchromatography(HPLC).1.5ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.6ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeSection9.2.ReferencedDocuments2.1ASTMStandards:2D1129TerminologyRelatingtoWaterD1193SpecificationforReagentWaterD3370PracticesforSamplingWaterfromClosedConduitsD3694PracticesforPreparationofSampleContainersandforPreservationofOrganicConstituentsD3856GuideforManagementSystemsinLaboratoriesEngagedinAnalysisofWaterD3973TestMethodforLow-MolecularWeightHalogenatedHydrocarbonsinWaterD4210PracticeforIntralaboratoryQualityControlProce-duresandaDiscussiononReportingLow-LevelData(Withdrawn2002)3D4448GuideforSamplingGround-WaterMonitoringWellsD5175TestMethodforOrganohalideP...
