Designation:D1490−01(Reapproved2018)StandardTestMethodforNonvolatileContentofUrea-FormaldehydeResinSolutions1ThisstandardisissuedunderthefixeddesignationD1490;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationoftheappar-entnonvolatilecontentofurea-formaldehyderesinsolutionsintendedforuseaswoodadhesives.Duetothechemicalnatureofsuchresins,thenonvolatilecontentdeterminedvariesmarkedlyaccordingtothetypeoftestused.Inordertominimizethiscondition,thistestmethodisdesignedtoyieldreasonablyuniformagreementamongdifferentlaboratoriestestingspecimensfromthesamesample.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D907TerminologyofAdhesives3.Terminology3.1Definitions—ManytermsinthistestmethodaredefinedinTerminologyD907.4.SignificanceandUse4.1Woodadhesiveperformanceandcostisoftenrelatedtothesolidslevel(nonvolatilecontent).4.2Thistestmethoddeterminestheapparentnonvolatilecontentforurea-formaldehyderesins.5.Apparatus5.1AnalyticalBalance,accurateto61.0mg.5.2Thermometer—Aglassthermometerhavingarangefrom0to110or150°C(32to230or302°F)andaccurateto61°C(62°F)attherequiredimmersion.5.3Constant-TemperatureO...
