Designation:D2222−14StandardTestMethodforMethanolExtractofVinylChlorideResins1ThisstandardisissuedunderthefixeddesignationD2222;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thistestmethodcoversthedeterminationofthemetha-nolextract,ornonvolatilemethanol-solubleportion,ofvinylchlorideresins.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.NOTE1—ThereisnoknownISOequivalenttothisstandard.2.ReferencedDocuments2.1ASTMStandards:2D883TerminologyRelatingtoPlasticsD1600TerminologyforAbbreviatedTermsRelatingtoPlas-tics3.Terminology3.1Definitions—DefinitionsareinaccordancewithTermi-nologiesD883andD1600unlessotherwiseindicated.4.SummaryofTestMethod4.1Themethanol-solublematerialsareextractedfromtheresininaSoxhletextractor,themethanolevaporatedtodryness,andtheresidueweighedastheweightpercentmethanolextract.5.SignificanceandUse5.1Themethanolextracttestismostcommonlyemployedwithpaste-ordispersion-typevinylresinsintendedfororgano-solorplastisolapplications.Thetestresultisaquantitativemeasureofthemethanol-soluble,nonvolatile,essentiallynon-polymericcontentofthevirgin,unmodifiedresin.Themajoringredientremovedisthesoapsystememployedinthepolymerizationreaction;methanolextractprovidesameasureoflot-to-lotuniformityoftheresininthisrespect.6.Apparatus6.1SoxhletExtractor.6.2ExtractionThimbles,33by94-mm.6.3Oven,Constant-Temperature,maintainedat10563°C.6.4ElectricHeatingMantlefora250-mLextractorflask,orelectricstripheaters,equippedwithasuitablevariabletrans-formertocontrolthera...
