Designation:D494−11StandardTestMethodforAcetoneExtractionofPhenolicMoldedorLaminatedProducts1ThisstandardisissuedunderthefixeddesignationD494;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thistestmethodcoversthedeterminationoftheamountofacetone-solublematterinmoldedorlaminatedphenolicproducts.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesgiveninparenthesesaremathematicalconversionstoinch-poundunitsthatareprovidedforinforma-tiononlyandarenotconsideredstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.NOTE1—ThistestmethodissimilartoISO308.2.ReferencedDocuments2.1ASTMStandards:2D618PracticeforConditioningPlasticsforTestingD883TerminologyRelatingtoPlasticsE11SpecificationforWovenWireTestSieveClothandTestSievesE691PracticeforConductinganInterlaboratoryStudytoDeterminethePrecisionofaTestMethod2.2ISOStandards:ISO308Plastics—Phenolicmouldingmaterials—Determinationofacetone-solublematter(apparentresincontentofmaterialintheunmouldedstate)3.Terminology3.1AlldefinitionsareinaccordancewithTerminologyD883.4.SignificanceandUse4.1Formoldedphenolicproducts,acetoneextractionshallbeconsideredsolelyasaquantitativeexpressionofapropertynormallyassociatedwithdegreeofcure.Thereisnodemon-strablyrigorousrelationbetweentheoptimummechanicalandelectricalpropertiesofawell-curedpieceandthenumericalvalueoftheacetonetest.Theamountofacetone-solublematterisaffectedby:(1)natureofresinandfiller,(2)lubricant,(3)moldingtemperature,(4)lengthofcure,(5)thicknessofthesectionfromwhichsampleistaken,(6)natureofmoldedpiece,(7)techniqueusedinmolding,(8)distributionoffinesinthe...
