Designation:D6351−10StandardTestMethodforDeterminationofLowTemperatureFluidityandAppearanceofHydraulicFluids1ThisstandardisissuedunderthefixeddesignationD6351;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthefluidityandappearanceofhydraulicfluidsafterstorageatlowtemperature.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.2.1Exception—In6.1.1,thematerialisdesignatedincStasthisisthecommonnameusedforthistypeofoil.1.3WARNING—Mercuryhasbeendesignatedbymanyregulatoryagenciesasahazardousmaterialthatcancausecentralnervoussystem,kidneyandliverdamage.Mercury,oritsvapor,maybehazardoustohealthandcorrosivetomaterials.Cautionshouldbetakenwhenhandlingmercuryandmercurycontainingproducts.SeetheapplicableproductMa-terialSafetyDataSheet(MSDS)fordetailsandEPA’swebsite—http://www.epa.gov/mercury/faq.htm—foraddi-tionalinformation.Usersshouldbeawarethatsellingmercuryand/ormercurycontainingproductsintoyourstateorcountrymaybeprohibitedbylaw.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.Forspecificwarningstatements,see1.3andSection6.2.ReferencedDocuments2.1ASTMStandards:2D97TestMethodforPourPointofPetroleumProductsD2500TestMethodforCloudPointofPetroleumProductsD6080PracticeforDefiningtheViscosityCharacteristicsofHydraulicFluidsE1SpecificationforASTMLiquid-in-GlassThermometers3.SummaryofTestMethod3.1Afterpreliminarydryingtoremovetraceamountsofwater,thesampleiscooledtoaspecifiedtemperature.Aftersevenconsecutivedays,thesampleisexaminedforitsabilitytoflowandobservedforhomogeneity.4.SignificanceandUse4...