Designation:F922−01(Reapproved2011)AnAmericanNationalStandardStandardTestMethodforMotorLifeEvaluationofanElectricMotorizedNozzle1ThisstandardisissuedunderthefixeddesignationF922;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthemotorizednozzleusedwithhouseholdorcommercialvacuumcleanersystems,thatis,combinationcleaners.1.2Thistestmethodprovidesatestfordeterminingoper-atingmotorlifeinhoursbyanacceleratedlaboratoryproce-dure.Themotorsaretestedwhilemountedandoperatedinthemotorizednozzle.1.3Thistestmethodcoversonlythemotorizednozzle.Thesystemusedtoprovidetheairflowsourceisnotunderconsideration.1.4Thistestmethodislimitedtothedeterminationofmotorlifeforanelectricallypoweredhouseholdorcommercialmotorizednozzle.1.5Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D75PracticeforSamplingAggregatesE337TestMethodforMeasuringHumiditywithaPsy-chrometer(theMeasurementofWet-andDry-BulbTem-peratures)F431SpecificationforAirPerformanceMeasurementPle-numChamberforVacuumCleanersF608TestMethodforEvaluationofCarpetEmbeddedDirtRemovalEffectivenessofHousehold/CommercialVacuumCleanersF655SpecificationforTestCarpetsandPadsforVacuumCleanerTesting3.Terminology3.1DefinitionsofTermsSpecifictoThisStandard:3.1.1motorlife—limitedbyfailureofthemotor.Failureismotorstoppage.3.1.1.1Discussion—Anyfailureintegralwiththemotorsuchasarmatureassembly,fieldassembly,housing(s)bearings,motorcoolingfan,carbonbrushassemblies,motor-mountedn...
