Designation:D2709−16StandardTestMethodforWaterandSedimentinMiddleDistillateFuelsbyCentrifuge1ThisstandardisissuedunderthefixeddesignationD2709;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope*1.1Thistestmethodcoversthedeterminationofthevolumeoffreewaterandsediment(asapercentageofthesample)thatissuspendedinthebulkfuelinmiddledistillatefuelswithviscositiesintherangeof1.0mm2/sto4.1mm2/sat40°C(1.0cStto4.1cStat104°F)anddensitiesintherangeof770kg⁄m3to900kg⁄m3at15°C.NOTE1—FuelscorrespondingtoSpecificationD396GradesNo.1and2,D975GradesNo.1-Dand2-D,SpecificationD2880GradesNo.0-GT,1-GTand2-GT,andSpecificationD3699GradesNo.1-Kand2-Kandsimilarmiddledistillatefuelsandblendstockswillusuallyfallinthisviscosityanddensityrange.TestMethodD1796isintendedforhigherviscosityfueloils.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.1.2.1Exception—Thenon-SIvaluesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D396SpecificationforFuelOilsD975SpecificationforDieselFuelOilsD1796TestMethodforWaterandSedimentinFuelOilsbytheCentrifugeMethod(LaboratoryProcedure)D2880SpecificationforGasTurbineFuelOilsD3699SpecificationforKerosineD4057PracticeforManualSamplingofPetroleumandPetroleumProductsD4175TerminologyRelatingtoPetroleumProducts,LiquidFuels,andLubricantsD4177PracticeforAutomaticSamplingofPetroleumandPetroleumProducts3.Terminology3.1Fordefinitionsoftermsusedinthistestmethod,refertoTerminologyD4175.3.2Definitions:3.2.1freewater,n—waterinexcessofthat...
