Designation:C1534−19StandardSpecificationforFlexiblePolymericFoamSheetInsulationUsedasaThermalandSoundAbsorbingLinerforDuctSystems1ThisstandardisissuedunderthefixeddesignationC1534;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcoversthecomposition,dimensions,andphysicalpropertiesofflexibleunfacedfoamsheet,usedtoinsulateinteriorsurfacesofHVACducts,plenumsandequip-mentusedforthedistributionofconditionedairwithatemperatureofupto250°F(121°C).1.2HVACducts,plenumsandequipmentsystemstypicallyoperatebetweenatemperaturerangeof50°Fto150°F(10°Cto65°C)andaredesignedtomeetbuildingcoderequirementsofmaximumtemperaturesof250°F(121°C).1.3Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2C168TerminologyRelatingtoThermalInsulationC177TestMethodforSteady-StateHeatFluxMeasure-mentsandThermalTransmissionPropertiesbyMeansoftheGuarded-Hot-PlateApparatusC209TestMethodsforCellulosicFiberInsulatingBoardC390PracticeforSamplingandAcceptanceofThermalInsulationLotsC411TestMethodforHot-SurfacePerformanceofHigh-TemperatureThermalInsulationC423TestMethodfo...
