Designation:D8136−17StandardTestMethodforDeterminingPlasticFilmThicknessandThicknessVariabilityUsingaNon-ContactCapacitanceThicknessGauge1ThisstandardisissuedunderthefixeddesignationD8136;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationofthethick-nessofplasticfilm,ranginginthicknessfrom2.5to250µm,withanon-contactthicknessgaugethatusescapacitance-basedtechnology.Itincludesamethodtogenerateaseriesofthicknessdatapointsthatcanbeusedtocharacterizethevariabilitypatternsoffilmforbothtransverseormachinedirection(profiling).NOTE1—Thickerspecimens,typically250µmto2500µmthick,canutilizethistestmethodiftheapparatusisdesignedtomeasureandhandlematerialsofthisthicknessrange,andtheapparatuscomplieswiththerequirementsasdefinedinthisstandard.1.2Thistestmethodprovidesamethodforbuyersandsellersoffilmtocommunicatethethicknessandpatternofthicknessvariabilityoftheproducttheyarebuying/selling.1.3Thistestmethoddoesnotapplytotexturedorporousfilmsorfilmsthatareconductiveorcoatedwithaconductivesubstance.NOTE2—Filmsthatcontainexcessivelevelsofanti-staticadditivecanbeconductiveandneedtobetestedtoverifythattheydonotcauseanegativereadingontheinstrument.1.4Units—ThevaluesstatedinSIunitsaretoberegardedasthestandard.Nootherunitsofmeasurementareincludedinthisstandard.NOTE3—ThereisnoknownISOequivalenttothisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.6Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationa...
