Designation:F970−07(Reapproved2011)StandardTestMethodforStaticLoadLimit1ThisstandardisissuedunderthefixeddesignationF970;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodisintendedforuseindeterminingtherecoverypropertiesofresilientfloorcoveringafterlong-termindentationtest,24hundertheloadspecifiedinthedetailspecification.Thereportedvalue,residualindentation,isthedepthofthedepressionremaining24hafterremovalofthespecifiedload.1.2Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2E171PracticeforConditioningandTestingFlexibleBarrierPackagingE691PracticeforConductinganInterlaboratoryStudytoDeterminethePrecisionofaTestMethodF386TestMethodforThicknessofResilientFlooringMa-terialsHavingFlatSurfacesF387TestMethodforMeasuringThicknessofResilientFloorCoveringWithFoamLayerF1914TestMethodsforShort-TermIndentationandRe-sidualIndentationofResilientFloorCovering3.SignificanceandUse3.1Thistestmethodisameaningfultestfordeterminingtheindentationrecoverypropertiesofresilientfloorcovering.33.2Astestingisconductedonuninstalledflooring,resultsarenotnecessarilyanindicatorofthefloorcovering’sinstalledperformance.34.Apparatus4.1Thefollowingapparatusshallbeused:4.2ConditioningRoom,providingthestandardlaboratoryatmosphereof5065%relativehumidityatatemperatureof73.463.6°F(2362.0°C).4.3IndentationMachine,asdescribedinSection12andpicturedinFig.2ofTestMethodF19...
