Designation:D4176−04(Reapproved2014)StandardTestMethodforFreeWaterandParticulateContaminationinDistillateFuels(VisualInspectionProcedures)1ThisstandardisissuedunderthefixeddesignationD4176;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thistestmethodcoverstwoproceduresforestimatingthepresenceofsuspendedfreewaterandsolidparticulatecontaminationindistillatefuelshavingdistillationendpointsbelow400°CandanASTMcolorof5orless.1.1.1Bothprocedurescanbeusedasfieldtestsatstoragetemperatures,oraslaboratorytestsatcontrolledtemperatures.1.1.2Procedure1providesarapidpass/failmethodforcontamination.Procedure2providesagrossnumericalratingofhazeappearance.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D1500TestMethodforASTMColorofPetroleumProducts(ASTMColorScale)D1744TestMethodforDeterminationofWaterinLiquidPetroleumProductsbyKarlFischerReagentD2276TestMethodforParticulateContaminantinAviationFuelbyLineSamplingD2709TestMethodforWaterandSedimentinMiddleDistillateFuelsbyCentrifugeD4057PracticeforManualSamplingofPetroleumandPetroleumProductsD4860TestMethodforFreeWaterandParticulateContami-nationinMiddleDistillateFuels(ClearandBrightNu-mericalRating)2.2ASTMAdjuncts:DistillateFuelBarChart3DistillateFuelHazeRatingStandard43.Terminology3.1DefinitionsofTermsSpecifictoThisStandard:3.1.1clear-and-bright(alsotermedclean-and-bright)—aconditioninwhichthefuelisfreeofhazeorc...
