Designation:C1046−95(Reapproved2013)StandardPracticeforIn-SituMeasurementofHeatFluxandTemperatureonBuildingEnvelopeComponents1ThisstandardisissuedunderthefixeddesignationC1046;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticecoversatechniqueforusingheatfluxtransducers(HFTs)andtemperaturetransducers(TTs)inmea-surementsofthein-situdynamicorsteady-statethermalbehaviorofopaquecomponentsofbuildingenvelopes.Theapplicationsforsuchdataincludedeterminationofthermalresistancesorofthermaltimeconstants.However,suchusesarebeyondthescopeofthispractice(forinformationondeterminingthermalresistances,seePracticeC1155).1.2UseinfraredthermographywiththistechniquetolocateappropriatesitesforHFTsandTTs(hereaftercalledsensors),unlesssubsurfaceconditionsareknown.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2C168TerminologyRelatingtoThermalInsulationC518TestMethodforSteady-StateThermalTransmissionPropertiesbyMeansoftheHeatFlowMeterApparatusC1060PracticeforThermographicInspectionofInsulationInstallationsinEnvelopeCavitiesofFrameBuildingsC1130PracticeforCalibratingThinHeatFluxTransducersC1153PracticeforLocationofWetInsulationinRoofingSystemsUsingInfraredImagingC1155PracticeforDeterminingThermalResistanceofBuildingEnvelopeComponentsfromtheIn-SituData3.Terminology3.1Definitions—Fordefinitionoftermsrelatingtothermalinsulatingmaterials,seeTerminologyC168.3.2DefinitionsofTermsSpecifictoThisStandard:3.2.1buildingenvelopecomponent—apor...
