Designation:C419−08(Reapproved2013)StandardPracticeforMakingandCuringTestSpecimensofMasticThermalInsulationCoatings1ThisstandardisissuedunderthefixeddesignationC419;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticecoversthepreparationofspecimensofmasticsandcoatingsintheformofcuredsheetsorfilmsthatmaybeusedinotherproceduresforevaluationofphysicalproperties.1.2Threeproceduresaredescribedforcastingandcuring(Note1)masticsandcoatingsofalltypesforthermalinsula-tion.NOTE1—Theterm“cure”isusedprimarilytodenotetheconditionthatdevelopsastheresultoflossofvolatilematterbutalsotodenotepossiblesubsequentchangesinchemicalorphysicalpropertiesduetocrosslinking.1.2.1ProcedureAisintendedtoprovideaspecimenofcontrolledthicknessappliedtoinsulation,andequivalentinotherrespectstothatobtainableunderfieldapplicationcondi-tions.Thethermalinsulationintendedforfieldusemaybespecifiedasthebacking.1.2.2ProcedureBisintendedtoprovideafree-filmspeci-menofcontrolledthicknesshavingsmoothsurfacesonbothsides.Thistypeisrequiredforsometypesofphysicaltesting.1.2.3ProcedureCisintendedtoprovideafree-filmspeci-menofcontrolledthicknesshavingonesmoothsurface(asfieldapplied).1.3Theproceduresofthispracticearenotintendedfortheevaluationofapplicationproperties.ThesearecoveredinTestMethodsC461andGuideC647.1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2C168TerminologyRelatingt...
