Designation:D3948−22StandardTestMethodforDeterminingWaterSeparationCharacteristicsofAviationTurbineFuelsbyPortableSeparometer1ThisstandardisissuedunderthefixeddesignationD3948;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope*1.1Thistestmethodcoversarapidportablemeansforfieldandlaboratoryusetoratetheabilityofaviationturbinefuelstoreleaseentrainedoremulsifiedwaterwhenpassedthroughfiberglasscoalescingmaterial.1.2Theproceduresectionofthistestmethodcontainstwodifferentmodesoftestequipmentoperation.Theprimarydifferencebetweenthemodesofoperationistherateoffuelflowthroughthefiberglasscoalescingmaterial.Testmethodselectionisdependentontheparticularfueltobetested.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesafterSIunitsareprovidedforinformationonlyandarenotconsideredstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D1655SpecificationforAviationTurbineFuelsD2550MethodofTestforWaterSeparationCharacteristicsofAviationTurbineFuels(Withdrawn1989)3D3602TestMethodforWaterSeparationCharacteristicsofAviationTurbineFuels(Withdrawn1994)3D4175TerminologyRelatingtoPetroleumProducts,LiquidFuels,andLubricantsD4306PracticeforAviationFuelSamp...
