Designation:D7279−18StandardTestMethodforKinematicViscosityofTransparentandOpaqueLiquidsbyAutomatedHouillonViscometer1ThisstandardisissuedunderthefixeddesignationD7279;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thistestmethodcoversthemeasurementofthekine-maticviscosityoftransparentandopaqueliquids;suchasbaseoils,formulatedoils,dieseloil,biodiesel,biodieselblends,residualfueloils,marinefuels,andusedlubricatingoilsusingaHouillonviscometerinautomatedmode.1.2Therangeofkinematicviscositycapableofbeingmeasuredbythistestmethodisfrom2mm2/sto2500mm2/s(seeFig.1).Therangeisdependentonthetubeconstantutilized.Thetemperaturerangethattheapparatusiscapableofachievingisbetween20°Cand150°C,inclusive.However,theprecisionhasonlybeendeterminedfortheviscosityrange;2mm2/sto478mm2/sat40°Cforbaseoils,formulatedoils,dieseloil,biodiesel,andbiodieselblends;3mm2/sto106mm2/sat100°Cforbaseoilsandformulatedoils;25mm2/sto150mm2/sat40°Cand5mm2/sto16mm2/sat100°Cforusedlubricatingoils;25mm2/sto2500mm2/sat50°Cand6mm2/sto110mm2/sat100°Cforresidualfuels.Asindicatedforthematerialslistedintheprecisionsection.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.Forspecificwarningstatements,seeSection6.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)C...
