Designation:D1992−91(Reapproved2013)StandardGuideforTestingSyntheticPlasticizersUsedinRubber1ThisstandardisissuedunderthefixeddesignationD1992;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisguidecoverstestmethodsforsyntheticplasticizersthatareusedinrubberapplications.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D70TestMethodforDensityofSemi-SolidBituminousMaterials(PycnometerMethod)D92TestMethodforFlashandFirePointsbyClevelandOpenCupTesterD891TestMethodsforSpecificGravity,Apparent,ofLiquidIndustrialChemicalsD1045TestMethodsforSamplingandTestingPlasticizersUsedinPlasticsD1209TestMethodforColorofClearLiquids(Platinum-CobaltScale)D1218TestMethodforRefractiveIndexandRefractiveDispersionofHydrocarbonLiquidsD1544TestMethodforColorofTransparentLiquids(Gard-nerColorScale)D1962TestMethodforSaponificationValueofDryingOils,FattyAcids,andPolymerizedFattyAcids(Withdrawn2004)3D2111TestMethodsforSpecificGravityandDensityofHalogenatedOrganicSolventsandTheirAdmixturesD2196TestMethodsforRheologicalPropertiesofNon-NewtonianMaterialsbyRotational(Brookfieldtype)ViscometerD2288TestMethodforWeightLossofPlasticizersonHeating(Withdrawn2010)3E203TestMethodforWaterUsingVolumetricKarlFischerTitration3.SignificanceandUse3.1SyntheticplasticizersareprimarilyestersandtheyareusedwiththemorepolarelastomerssuchasCRorNBRtoimproveprocessing,adjusthardness,andimprovelowtem-peratureproperties.Theseestersmaybeeithermonomericorpolymericandarederivedfrommanydifferentorganicacids.3.2Thesetestmethodsmaybeusedinestablishingandconfirmingqualitycontrolstand...
