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【英文标准名称】:StandardTestMethodforDeterminingInitial,Fractional,FiltrationEfficiencyofaVacuumCleanerSystem
【原文标准名称】:测定真空吸尘器系统初始部分过滤效率的标准试验方法
【标准号】:ASTMF1977-2004
【标准状态】:现行
【国别】:
【发布日期】:2004
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:F11.23
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:试验;效率;过滤;真空清洁设备;真空吸尘器;家用设备;过滤器;给养设备
【英文主题词】:efficiency;filtration;vacuumcleaner
【摘要】:Itiswellknownthatmodernelectricalappliances,incorporatingelectricmotorsthatusecarbonbrushesforcommutation,mayemitaerosolized,particlesintothesurroundingenvironment.Thistestmethoddeterminestheinitial,fractional,filtrationefficiencyofavacuumcleanersystem,takingthoseemissionsintoconsideration.Forallvacuumcleanersystemstested,thetotalemissionsoftheunit,whateverthesource(s),willbecountedateachofthesixparticlesizelevelsidentifiedinthetestprocedure.Thistestmethoddeterminestheinitial,fractionalfiltrationefficiencyofavacuumcleanersystem,withorwithoutthemotoremissionsmathematicallyremovedinthecalculationofefficiency.1.1Thistestmethodmaybeusedtodeterminetheinitial,fractional,filtrationefficiencyofhouseholdandcommercialcanister(tank-type),stick,hand-held,upright,andutilityvacuumcleanersystems.1.1.1Water-filtrationvacuumcleanerswhichdonotutilitzeareplaceabledrymediafilterlocatedbetweenthewater-basedfilterandcleaningairexhaustarenotincludedinthistestmethod.Ithasbeendeterminedthattheexhaustofthesevacuumcleanersisnotcompatiblewiththespecifieddiscreteparticlecounter(DPC)procedure.1.2Theinitial,fractional,filtrationefficienciesoftheentirevacuumcleanersystem,atfourdiscreteparticlesizes(0.3,0.5,1.0and2.5181m),isderivedbycountingupstreamchallengeparticlesandtheconstituentofdownstreamparticleswhilethevacuumcleanersystemisbeingoperatedinastationarytestcondition.1.3Thevacuumcleanersystemistestedatthenozzleunderanormalairflowrateequivalentto150%oftheairflowrateproducedatthemaximumairpowerpointasdeterminedinaccordancewithTestMethodF558.