Designation:C1058/C1058M−10(Reapproved2015)StandardPracticeforSelectingTemperaturesforEvaluatingandReportingThermalPropertiesofThermalInsulation1ThisstandardisissuedunderthefixeddesignationC1058/C1058M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticecoversstandardmeantemperaturesforreportingthermalpropertiesofthermalinsulations,products,andmaterials,andofrelatedsystemsandcomponents,bothinsulatedanduninsulated.1.2Thermalpropertiesshallbedeterminedasafunctionoftemperaturebystandardtestmethods.(TestMethodsC177,C201,C335/C335M,C518,C745,C1114,C1363,GuideC653,andPracticeC687,allincombinationwithPracticeC1045.)NOTE1—Standardreferencedmaterialsareneededtospanthetem-peraturerangeofthetests.1.3ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.4Thispracticerecommendsstandardconditionsforuseintestingandevaluatingthermalpropertiesasafunctionoftemperaturebystandardtestmethods.1.5Generalapplicationsofthermalinsulationsinclude:1.5.1Buildingenvelopes,1.5.2Mechanicalsystemsorprocesses,and1.5.3Buildingandindustrialinsulations.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2C168TerminologyRelatingtoThermalInsulationC177TestMethodforSteady-StateHeatFluxMeasure-mentsandThermalTransmissionPropertiesbyMeansoftheGuarded-Hot-PlateApparatusC201TestMethodforThermalConductivityofRefractoriesC335/C335MTestMethodforSteady-S...