Designation:D341−17StandardPracticeforViscosity-TemperatureChartsforLiquidPetroleumProducts1ThisstandardisissuedunderthefixeddesignationD341;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope*1.1Thispracticecoverskinematicviscosity-temperaturecharts(seeFigs.1and2),whichareaconvenientmeanstoascertainthekinematicviscosityofapetroleumoilorliquidhydrocarbonatanytemperaturewithinalimitedrange,pro-videdthatthekinematicviscositiesattwotemperaturesareknown.1.2Thechartsaredesignedtopermitpetroleumoilkine-maticviscosity-temperaturedatatoplotasastraightline.ThechartsherepresentedprovideasignificantimprovementinlinearityoverthechartspreviouslyavailableunderMethodD341–43.Thisincreasesthereliabilityofextrapolationtohighertemperatures.1.3ThevaluesprovidedinSIunitsaretoberegardedasstandard.1.3.1Exception—Thevaluesgiveninparenthesesarepro-videdforinformationonly.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D445TestMethodforKinematicViscosityofTransparentandOpaqueLiquids(andCalculationofDynamicViscos-ity)D7042TestMethodforDynamicViscosityandDensityofLiquidsbyStabingerViscometer(andtheCalculationofKinematicViscosity)2.2ASTMAdjuncts:3Viscosity-TemperatureCharts1–73.TechnicalHazard3.1Warning—Thechartsshouldbeusedonlyinthatrangeinwhichthehydrocarbonorpetroleumfluidsarehomogeneousliquids.Thesuggestedrangeisthusbetweenthecloudpointatlowtemperaturesandtheinitialboilingpointathighertem-peratures.Thechartsprovideimprovedlinearityi...
