Designation:E1155−14StandardTestMethodforDeterminingFFFloorFlatnessandFLFloorLevelnessNumbers1ThisstandardisissuedunderthefixeddesignationE1155;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thistestmethodcoversaquantitativemethodofmea-suringfloorsurfaceprofilestoobtainestimatesofthefloor’scharacteristicFFFlatnessandFLLevelnessFaceFloorProfileNumbers(F-Numbers)usingtheinch-poundsystemofunits.NOTE1—AcompletemetriccompaniontoTestMethodE1155hasbeendeveloped,TestMethodE1155M;therefore,nometricequivalentsareshowninthistestmethod.1.2Thetextofthistestmethodreferencesnotesandfootnotesthatprovideexplanatorymaterial.Thesenotesandfootnotes(excludingthoseintablesandfigures)shallnotbeconsideredasrequirementsofthistestmethod.1.3Thevaluesstatedininch-poundunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2E1155MTestMethodforDeterminingFFFloorFlatnessandFLFloorLevelnessNumbers(Metric)2.2ACIStandard:3ACI117-90StandardSpecificationsforTolerancesforCon-creteConstructionandMaterials3.Terminology3.1DefinitionsofTermsSpecifictoThisStandard:3.1.1elevation—height,altitude,verticallocationinspace.Elevationmeasurementsarealwaysmadeparalleltothedirectionofgravity.3.1.2flat—even,plane,homoloidal,freeofundulation.3.1.2.1Discussion—Forthepurposesofthistestmethod,flatnesswillbemeasuredbycalculatingcurvaturevalue,q,betweenall12-in.readingpointsseparatedby24in.Thecurvaturevalueisthedifferencebetwe...
