Designation:C208−12(Reapproved2017)´1StandardSpecificationforCellulosicFiberInsulatingBoard1ThisstandardisissuedunderthefixeddesignationC208;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.ε1NOTE—EditoriallyaddedmissingSIconversionsinSeptember2017.1.Scope1.1Thisspecificationcoverstheprincipalcellulosicfiberinsulatingboardtypes,grades,andsizes.Requirementsarespecifiedforcomposition,construction,physicalproperties,tolerances,samplingprocedures,andtestmethods.1.2Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.3Whentheinstallationoruseofthermalinsulationmaterials,accessories,andsystemsmayposesafetyorhealthproblems,themanufacturershallprovidetheuserappropriatecurrentinformationregardinganyknownproblemsassociatedwiththerecommendeduseofthecompany’sproductsandshallalsorecommendprotectivemeasurestobeemployedintheirsafeutilization.Theusershallestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatoryrequirementspriortouse.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2C165TestMethodforMeasuringCompressivePropertiesofThermalInsulationsC168TerminologyRelatingtoThermalInsulationC209TestMethodsforCellulosicFiberInsulatingBoardC390PracticeforSamplingandAcceptanceofThermalInsulationLotsC846PracticeforApplicationofCellulosicFiberInsulatingBoardforWallSheathingD1037TestM...
