Designation:D3325−90(Reapproved2020)StandardPracticeforPreservationofWaterborneOilSamples1ThisstandardisissuedunderthefixeddesignationD3325;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticecoversthepreservationofwaterborneoilsamplesfromthetimeofcollectiontothetimeofanalysis.Informationisprovidedtoensuresampleintegrityandtoavoidcontaminationandtominimizemicrobialdegradation.1.2Thepracticeisforcontrolledfieldorlaboratorycondi-tionsandspecifiesthoroughpreparationofequipmentandpreciseoperation.Wherethesedetailsmustbecompromisedinafieldemergency,nonstandardsimplificationsarerecom-mendedthatwillminimizeoreliminateconsequenterrors.NOTE1—ProceduresfortheanalysisofoilspillsamplesarePracticesD3326,D3415,andD4489,andTestMethodsD3650,D3327,D3328,andD3414.AguidetotheuseofASTMtestmethodsfortheanalysisofoilspillsamplesisfoundinPracticeD3415.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D1129TerminologyRelatingtoWaterD3326PracticeforPreparationofSamplesforIdentificationofWaterborneOilsD3327TestMethodforAnalysisofSelectedElementsinWaterborneOils(Withdrawn1993)3D3328TestMethodsforComparisonofWaterbornePetro-leumOilsbyGasChroma...
