Designation:F1464–93(Reapproved2005)StandardSpecificationforOxygenConcentratorsforDomiciliaryUse1ThisstandardisissuedunderthefixeddesignationF1464;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.INTRODUCTIONOxygenconcentratorsprovideasafesourceofoxygen-enrichedairforpatientsinneed.Theyaredevicesthatraisethelevelofinspiredoxygenbyseparatingnitrogenoroxygenfromambientair.Oxygenconcentratorsfallintotwomainclassesaccordingtothemeanswherebygasseparationiseffected,namely:oxygenconcentratorsinwhichoxygenselectivelypermeatesortransportsthroughamembraneorlattice,andpressureswingadsorbers(PSA)inwhichairisexposedatacertainpressuretomolecularsievematerialthatselectivelyretainsnitrogenandothercomponentsuntiltheyaresubsequentlyreleasedwhenthepressureisreduced.Thescopeofthisspecificationisnotrestrictedtothesetwoclassesasalternativemethodsofconcentratingoxygenmaybecomeavailableanditisnotintendedthatthisspecificationshouldrestrictfuturedevelopments.ThisparticularspecificationisoneofaseriesofstandardsbasedonIEC601-1secondeditionanditamendsandsupplementsIEC601-1secondedition,hereinaftercalledthe“generalstandard.”Asstatedin1.3ofthegeneralstandard,therequirementsofthisparticularspecificationtakeprecedenceoverthoseofthegeneralstandard.Asinthegeneralstandardtherequirementsarefollowedbycompliancetests.Thenumbersofthesectionsandclausesinthisspecificationrefertotherelatedsectionsandclausesinthegeneralstandard.Clauses,sub-clausesorfiguresthatareadditionaltothoseofthegeneralstandardarenumberedstartingafterthelastnumberedclauseinthegeneralstandard;additionalannexesareletteredAA,BB,etc.andadditionalitems(aa),(bb),etc.Thechangesfromthetextofthegeneralstandardarespecifiedbytheuseofthefollowingwords:“Replacement”meansthattheclause,sub-clauseorspecifiedparagraphofthegeneralstandardisrepl...
