Designation:C1393−14StandardSpecificationforPerpendicularlyOrientedMineralFiberRollandSheetThermalInsulationforPipesandTanks1ThisstandardisissuedunderthefixeddesignationC1393;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcoversthecomposition,dimensions,andphysicalpropertiesofcompression-resistant,perpendicu-larlyorientedmineralfiber(rock,slag,orglass)rollandsheetinsulationintendedforuseonflat,curved,orroundsurfacesoperatingattemperaturesbetween0°F(–18°C)and1000°F(538°C).Thisproduct(pipeandtankinsulation)istypicallyusedonnominal24in.(610mm)orgreaterdiametersurfaces.Forspecificapplications,theactualusetemperaturesanddiametersshallbeagreeduponbetweenthemanufacturerandthepurchaser.1.2Theorientationofthefiberswithintherollorsheetinsulationisessentiallyperpendiculartotheheated/cooledsurface(paralleltoheatflow).Thisspecificationdoesnotapplytoflatblock,board,ductwrap,orpreformedpipemineralfiberinsulationwheretheinsulationfiberorientationisgenerallyparalleltotheheated/cooledsurface(acrosstheheatflow).1.3Forsatisfactoryperformance,properlyinstalledprotec-tivevaporretardersmustbeusedinbelowambienttemperatureapplicationstoreducemovementofmoisture/watervaporthroughoraroundtheinsulationtowardsthecoldersurface.Failuretouseavaporretardercanleadtoinsulationandsystemdamage.RefertoPracticeC921toaidmaterialselection.Althoughvaporretarderspropertiesarenotpartofthisspecification,propertiesrequiredinSpecificationC1136arepertinenttoapplicationorperformance.1.4Whentheinstallationoruseofthermalmaterials,accessories,andsystemsmayposesafetyorhealthproblems,themanufacturershallprovidetheuser-appropriatecurrentinformationregardinganyknownproblemsassociatedwiththerecommendedusefortheproductsofthecompanyandshallalsorecommendprotectivemeasurestobeemployedi...
