Designation:C411−19StandardTestMethodforHot-SurfacePerformanceofHigh-TemperatureThermalInsulation1ThisstandardisissuedunderthefixeddesignationC411;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thistestmethodcoversthedeterminationoftheperfor-manceofcommercialsizesofbothblockandpipeformsofthermalinsulatingmaterialswhenexposedtosimulatedhot-surfaceapplicationconditions.Theterm“hot-surfaceperfor-mance”hasreferencetoasimulateduse-temperaturetestinwhichtheheatedtestingsurfaceisinahorizontalposition.1.2Thistestmethodrefersprimarilytohigh-temperatureinsulationsthatareapplicabletohot-sidetemperaturesinexcessof150°F(66°C).Itisusedformaterialssuchaspreformedinsulations,insulatingcements,blankets,andthelike,byproperlaboratorypreparationofthesamples.1.3Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2C167TestMethodsforThicknessandDensityofBlanketorBattThermalInsulationsC168TerminologyRelatingtoThermalInsulationC356TestMethodforLinearShrinkageofPreformedHigh-TemperatureThermalInsulatio...
