ASTM_F_1038_-_02_2016.pdf

Designation:F103802(Reapproved 2016)An American National StandardStandard Test Method forMotor Life Evaluation of a Canister,Hand-held,Stick,andUtility Type Vacuum Cleaner Without a Driven Agitator1This standard is issued under the fixed designation F1038;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method is limited to evaluation of canister,hand-held,stick,and utility type vacuum cleaners without adriven agitator.1.2 This test method provides a test to determine operatinglife of the motor,before servicing is needed,by an acceleratedlaboratory procedure.The motor is tested while mounted and isoperated in a vacuum cleaner.1.3 The values as stated in inch-pound units are to beregarded as the standard.The values in parentheses are givenfor information only.1.4 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2E337 Test Method for Measuring Humidity with a Psy-chrometer(the Measurement of Wet-and Dry-Bulb Tem-peratures)F431 Specification for Air Performance Measurement Ple-num Chamber for Vacuum CleanersF608 Test Method for Evaluation of Carpet Embedded DirtRemovalEffectivenessofHousehold/CommercialVacuum Cleaners3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 failurewhen motor stoppage occurs.This may bedue to failure of an armature assembly,field assembly,housing(s),bearings,motor cooling fan and primary air mov-ing fan or both,brush assemblies,motor mounted nonresetablethermal protection devices,or any other component judged tobe integral with the motor.3.1.2 motor lifethe time at which any failure of the motoroccurs.4.Significance and Use4.1 The test results provide an indication of the motor life ofan electric vacuum cleaner in operating hours.The end of themotor life will be judged in accordance with Section 3.5.Apparatus and Materials5.1 Voltage Regulator System,to control the input voltage tothe vacuum cleaner.The regulator system shall be capable ofmaintaining the vacuum cleaners rated voltage 61%andrated frequency 61 Hz,having a waveform that is essentiallysinusoidal with 3%maximum harmonic distortion for theduration of the test.5.2 Voltmeter,to provide measurements accurate to 61%.5.3 Timer and SwitchThe timer and switch will have thecapacity to control on/off duty cycle of the vacuum cleanerduring the life test.5.4 Sharp Edge Orifice PlateThe orifice,0.75 in.(19.05mm)in diameter,shall be in accordance with the figureillustrating orifice plate detail in Specification F431.5.5 Wattmeter,to provide measurements accurate to 61%.5.6 Plenum Chamber,in accordance with the plenum cham-ber described in Specification F431.5.7 Water Manometer,or equivalent instrument measuringin increments of 0.1 in.(2.54 mm).5.8 Thermometer,having a range of at least 18 to 80F(-8to+27C)and graduated in 1F(0.5C)increments.5.9 PsychrometerThe psychrometer shall meet the re-quirements of Test Method E337,with thermometers in incre-ments of 1F(0.5C).5.10 Test FixtureAny suitable surface that will support thevacuum cleaner in the normal operating position.1This test method is under the jurisdiction ofASTM Committee F11 on VacuumCleaners and is the direct responsibility of Subcommittee F11.30 on Durability-Reliability.Current edition approved Oct.1,2016.Published October 2016.Originallyapproved in 1998.Last previous edition approved in 2011 as F1038 02(2011).DOI:10.1520/F1038-02R16.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 6.Sampling6.1 Test a minimum of three units(or a larger sample size ifdesired)of similar models using the same motor style andamperage.Select all samples at random in accordance withgood statistical practice.Results shall provide an 80%confi-dence level within 610%of the mean value.If not,testadditional samples or reduce the results by the penalty factor ascalculated in 7.8.1.7.Procedures for Motor Life Evaluation7.1 Determine initial performance as follows:7.1.1 Connect the manometer(or equivalent)to the plenumchamber.Install a clean filter in the test vacuum cleaner beforeconducting performance tests.(This is not required for unitswhich do not use filters).7.1.2 With the vacuum cleaner hose end(or nozzle)sealedto the plenum chamber and without an orifice plate in