Designation:C520−15StandardTestMethodsforDensityofGranularLooseFillInsulations1ThisstandardisissuedunderthefixeddesignationC520;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thesetestmethodsareapplicabletogranularloosefillinsulationmaterialssuchasvermiculiteandperlite.Theyareusedforotherinsulationmaterialswithsimilarflowandsettlingproperties.1.2MethodAshallbeusedtodeterminebulkdensity.1.3MethodBshallbeusedtodeterminedesigndensityand,withMethodA,isusedtocalculatepercentlossofvolumeduetosettling.1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2C168TerminologyRelatingtoThermalInsulationC390PracticeforSamplingandAcceptanceofThermalInsulationLots3.Terminology3.1ThedefinitionsoftermsusedinthismethodshallbeinaccordancewithTerminologyC168.3.2DefinitionsofTermsSpecifictoThisStandard:3.2.1bulkdensity—thedensityofthegranularmaterialisdeterminedinaccordancewithMethodA.Noconditioningisrequiredunlessspecified.Thedensityisdeterminedforthematerialasreceived.Thevoidsincorporatedduringtheplace-mentprocedureareincluded.3.2.2designdensity—thedensityoftheconditionedgranu-larmaterial,determinedinaccordancewithMethodB.Thenormalvoidsincorporatedduringtheplacementandsubse-quentproceduresareincluded.3.2.3percentvolumeloss—thelossinvolumebetweentheasreceivedbulkdensityandthedesigndensitydet...
