Designation:D6875−18StandardTestMethodforSolidificationPointofIndustrialOrganicChemicalsbyThermistor1ThisstandardisissuedunderthefixeddesignationD6875;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thistestmethodcoversageneralprocedurefordeter-miningthesolidificationpointofmostorganicchemicalshavingappreciableheatsoffusionandsolidificationpointsbetween4and41°C.NOTE1—Othertestmethodsfordeterminingfreezepointandsolidifi-cationpointofaromatichydrocarbonsincludeTestMethodsD852,D1015,D1016,D3799,D4493,andD6269.1.2Thistestmethodisapplicabletorelativelypurecom-poundsonly.Solidificationpointdepressionisdependentonimpurityconcentrations.1.3Thefollowingappliestoallspecifiedlimitsinthistestmethod:forpurposesofdeterminingconformancewithappli-cablespecificationsusingthistestmethod,anobservedvalueoracalculatedvalueshallberoundedoff“tothenearestunit”inthelastrighthanddigitusedinexpressingthespecificationlimit,inaccordancewiththe“rounding-offmethod”ofPracticeE29.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.Foraspecifichazardstatement,seeSection8,Hazards.1.6Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D852TestMethodforSolidificationPointofBenzeneD1015TestMethodforFreezingPoin...