Designation:D6756−17StandardTestMethodforDeterminationoftheRedDyeConcentrationandEstimationoftheASTMColorofDieselFuelandHeatingOilUsingaPortableVisibleSpectrophotometer1ThisstandardisissuedunderthefixeddesignationD6756;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1ThistestmethodcoversthedeterminationofthereddyeconcentrationofdieselfuelandheatingoilandtheestimationoftheASTMcolorofundyedandred-dyeddieselfuelandheatingoil.ThetestmethodisappropriateforusewithdieselfuelandheatingoilofGrades1and2describedinSpecifica-tionsD396,D975,D2880,andD3699.Reddyeconcentrationsaredeterminedatlevelsequivalentto0.1mg⁄Lto20mg⁄LofSolventRed26insampleswithASTMcolorsrangingfrom0.5to5.TheASTMcolorofthebasefuelofred-dyedsampleswithconcentrationlevelsequivalentto0.1mg⁄Lto20mg⁄LofSolventRed26isestimatedfortheASTMcolorrangefrom0.5to5.TheASTMcolorofundyedsamplesisestimatedovertheASTMcolorrangeof0.5to5.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D396SpecificationforFuelOilsD975SpecificationforDieselFuelOilsD1500TestMethodforASTMColorofPetroleumProducts(ASTMColorScale)D2880SpecificationforGasTurbineFuelOilsD3699SpecificationforKerosineD4052TestMethodforDensi...
