Designation:C547−15StandardSpecificationforMineralFiberPipeInsulation1ThisstandardisissuedunderthefixeddesignationC547;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thisspecificationcoversmineralfiberinsulationpro-ducedtoformhollowcylindersforstandardpipeandtubingsizes.Themineralfiberpipeinsulationmaybemoldedorprecisionv-grooved,withoneormorewallssplitlongitudi-nallyforuseonpipetemperaturesupto1400°F(760°C).1.2Forsatisfactoryperformance,properlyinstalledprotec-tivevaporretardersorbarriersshouldbeusedonsub-ambienttemperatureapplicationstoreducemovementofmoisturethroughoraroundtheinsulationtothecoldersurface.Failuretouseavaporbarriercanleadtoinsulationandsystemdamage.RefertoPracticeC921toaidmaterialselection.1.3Flexiblemineralfiberwrapproductssuchasperpendicular-orientedfiberinsulationrolls,non-precisionormanuallyscoredblockorboard,orflexibleboardsorblanketsusedaspipeinsulation,arenotcoveredbythisspecification.1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.5ForNavalSeaSystemsCommand(NAVSEA)acceptance,materialsmustalsocomplywithSupplementalRequirements.SeeAnnexA1ofthisstandard.1.6Thefollowingsafetyhazardscaveatappliestothetestmethodsportion,Section11,only:Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2C167TestMethodsforThicknessandDensityofBlanketorBattThermalInsulationsC168TerminologyRelatingtoThermalInsulationC17...
