Designation:C1126−15StandardSpecificationforFacedorUnfacedRigidCellularPhenolicThermalInsulation1ThisstandardisissuedunderthefixeddesignationC1126;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcoversfacedorunfaced,rigidcellularphenolicthermalinsulation.Boardsshallbefacedorunfaced.Tubularformscoveredbythisstandardshallbeunfaced.Itdoesnotapplytofieldexpandedcellularphenolicmaterials.NOTE1—Ifafacerorvaporretarderistobeusedforthetubularform,thenrefertoPracticeC921.1.2Materialscoveredbythisspecificationareusedasroofinsulation;sheathingorrigidboardfornon-loadbearing,buildingmaterialapplications;andpipeinsulationforusebetween−40and257°F(−40and125°C).TypeIIandTypeIIImaterialswithanappropriatevaporretardercoveringonthewarmsurfaceareusedtoalowertemperaturelimitof−290°F(−180°C).(See7.3.)1.3Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.4Thisspecificationcoversclosedcellrigidcellularphe-nolicthermalinsulationmanufacturedusingblowingagentswithanozonedepletionpotentialof0(ODP0).1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.Forspecificprecautionarystatements,seeSection16.2.ReferencedDocuments2.1ASTMStandards:2C165TestMethodforMeasuringCompressivePropertiesofThermalInsulationsC168TerminologyRelatingtoThermalInsulationC177TestMethodforSteady-StateHeatFluxMeasure-mentsandThermalTransmissionPropertiesbyMeansoftheGuarded-Hot-PlateApparatusC209TestMethodsforCellulosicFiberInsulatingBoardC335/C335MTestMethodforStead...