Designation:D3312−04(Reapproved2013)StandardTestMethodforPercentReactiveMonomerinSolventlessVarnishes1ThisstandardisissuedunderthefixeddesignationD3312;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationofthepercentofvolatilereactivemonomerhavingavaporpressureexceed-ing13.3Pa(0.1Torr)at25°Cinanuncatalyzedsolventlessvarnish.Experiencehasshownthismethoddoesnotaccuratelydeterminepercentreactivemonomerwhenthevaporpressureislessthan13.3Pa(0.1Torr).1.2ThevaluesstatedinSIunitsarethestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.Foraspecificprecaution,seeSection5.NOTE1—ThereisnosimilarorequivalentISO/IECstandard.2.ReferencedDocuments2.1ASTMStandards:2D1711TerminologyRelatingtoElectricalInsulationD5423SpecificationforForced-ConvectionLaboratoryOv-ensforEvaluationofElectricalInsulation3.Terminology3.1DefinitionsofTermsSpecifictoThisStandard:3.1.1reactivemonomer,n—insolventlesselectricalvarnish,asubstance,that,whenaddedtoaresin,willcombinechemicallywiththatresinunderspecifiedconditions.3.2SeeTerminologyD1711fordefinitionsofothertermsrelatingtoelectricalinsulation.4.SignificanceandUse4.1Thepercentofreactivemonomerinsolventlessvar-nisheswillaffecttheviscosity,thehandling,andtheprocessingpropertiesoftheuncuredresin.Thepercentofreactivemonomerwillpossiblyaffectthedegreeofhardnessandshrinkagewhichinturnwillaffectthephysicalandelectricalpropertiesofthecuredresin.5.SafetyPrecautions5.1Itisunsafetousevarnishattemperaturesabovetheflashpointwithoutadequateventilation,especiallyifthepo...
