Designation:F1497–99aStandardTestMethodforDeterminingLaserResistanceoftheShaftofTrachealTubes1ThisstandardisissuedunderthefixeddesignationF1497;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.INTRODUCTIONSurgeryintheairwayinwhichalaserisusedbringstogetheranoxygen-enrichedatmosphere,fuel,andhighenergythatcancombinetocreateafire.Variousmaterialsanddeviceshavebeenusedtominimizethechanceofairwayfire.Thistestmethodwasdevelopedtodeterminethelaserresistanceofatrachealtubeshaftforadefinedsetofconditions.1.Scope1.1Thistestmethodcoversastandardmeansoftestingthelaserresistanceoftheshaftofatrachealtube.1.2Thistestmethodaddressesthelaserresistanceoftheshaftofthetrachealtube.Othercomponentsofthesystem,suchastheinflationsystemandcuff,areoutsidethescopeofthistestmethod.1.3Cautionshouldbeobservedsincethedirectapplicabilityoftheresultsofthistestmethodtotheclinicalsituationhasnotbeenfullyestablished.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.5Thistestmethodshouldbeusedtomeasureanddescribethepropertiesofmaterials,products,orassembliesinresponsetoheatandflameundercontrolledlaboratoryconditionsandshouldnotbeusedtodescribeorappraisethefirehazardorfireriskofmaterials,products,orassembliesunderactualfireconditions.However,resultsofthistestmaybeusedaselementsofafireriskassessmentthattakesintoaccountallofthefactorsthatarepertinenttoanassessmentofthefirehazardofaparticularenduse.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.Specificprecau-tionarystatementsaregiveninNotes1-6.2.ReferencedDocuments2.1ASTMStandards:F1242Specificationf...
