Designation:D6139−22StandardTestMethodforDeterminingtheAerobicAquaticBiodegradationofLubricantsorTheirComponentsUsingtheGledhillShakeFlask1ThisstandardisissuedunderthefixeddesignationD6139;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thistestmethodcoversthedeterminationofthedegreeofaerobicaquaticbiodegradationoffullyformulatedlubri-cantsortheircomponentsonexposuretoaninoculumundercontrolledlaboratoryconditions.Thistestmethodisanulti-matebiodegradationtestthatmeasurescarbondioxide(CO2)evolution.1.2Thistestmethodisintendedtospecificallyaddressthedifficultiesassociatedwithtestingwaterinsolublematerialsandcomplexmixturessuchasarefoundinmanylubricants.1.3Thistestmethodisdesignedtobeapplicabletoallnon-volatilelubricantsorlubricantcomponentsthatarenottoxicandnotinhibitoryatthetestconcentrationtotheorganismspresentintheinoculum.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.SpecifichazardsarediscussedinSection10.1.6Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D1193SpecificationforReagentWaterD1293TestMethodsforpHofWaterD4447GuideforDisposalofLaboratoryChemicalsandSamplesD5291TestMethodsforInstrumentalDeterminationofCarbon,Hydrogen,andNitrogeninPetroleumProductsandLubricant...
