Designation:F2622−08(Reapproved2013)StandardTestMethodforOxygenGasTransmissionRateThroughPlasticFilmandSheetingUsingVariousSensors1ThisstandardisissuedunderthefixeddesignationF2622;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversaprocedurefordeterminationofthesteady-staterateoftransmissionofoxygengasthroughplasticsintheformoffilm,sheeting,laminates,coextrusions,orplastic-coatedpapersorfabrics.Itprovidesforthedetermi-nationof(1)oxygengastransmissionrate(O2GTR),(2)thepermeanceofthefilmtooxygengas(PO2),and(3)oxygenpermeabilitycoefficient(P’O2)inthecaseofhomogeneousmaterials.1.2ThistestmethoddoesnotpurporttobetheonlymethodformeasurementofO2GTR.TheremaybeothermethodsofO2GTRdeterminationthatuseotheroxygensensorsandprocedures.1.3Thistestmethodhasintentionallybeenpreparedtoallowfortheuseofvarioussensors,devices,andprocedures.Theprecisionandbiasofeachdesignneedstobeindividuallyestablishedtodeterminetheapplicabilityofthatinstrumentormethodtomeettheneedsoftheuser.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D1898PracticeforSamplingofPlastics(Withdrawn1998)3D3985TestMethodforOxygenGasTransmissionRateThroughPlasticFilmandSheetingUsingaCoulometricSensor3.Terminology3.1Definitions:3.1.1oxygenpermeabilitycoeffıcient(P'O2)—theproductofthepermeanceandthethicknessoffilm.Thepermeabilityismeaningfulonlyforhomogeneousmaterials,inwhichcaseitisapropertycharacteristicofthebulkmaterial.Theoxygenpermeabilitycoefficien...
