【英文标准名称】:StandardTestMethodforAirCleaningPerformanceofaHigh-EfficiencyParticulateAir-FilterSystem
【原文标准名称】:高效粒子空气过滤器系统空气净化功能的试验方法
【标准号】:ASTMF1471-1993(2001)
【标准状态】:现行
【国别】:
【发布日期】:1993
【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】:D22.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:通风设备;试验;空气过滤器;空气净化
【英文主题词】:aerosoldilution;aerosolgenerator;averagepenetration;backgroundparticles;challengeaerosols;coincidence;compressed-airnebulizer;dilutionratio;fractionalpenetration;HEPA;laseraerosolspectrometer;testaerosols
【摘要】:Thistestmethoddescribesaprocedurefordeterminingthepenetrationofaerosolsthroughaone-ortwostageHEPAfilterinstallation.Testingmultiplefilterstagesasasingleuniteliminatestheneedfor:installationofauxiliaryaerosolbypassducts,installationofaerosolinjectionmanifoldsbetweenfilterstages,andentryoftestpersonnelintocontaminatedareas.Itprovidesforfiltertestingwithoutinterruptionofplantprocessesandoperationofventilationsystems.Theprocedureisapplicableformeasuringpenetrationsrequiringsensitivitiesto0.1x03BC;m.Achallengeconcentrationof2.5x00D7;105particles/cm3(p/cm3),isrequiredforevaluationofone-filterstage,and2x00D7;106p/cm3,orabout30x03BC;g/L(assumingunitdensity),isrequiredtoproperlyevaluateatwo-stageHEPAfiltersystemasoneunit.ThistestmethodcandeterminethepenetrationofHEPAfiltersintheparticle-sizerangefrom0.1to0.2x03BC;mwherethegreatestpenetrationofparticlesislikelytooccur.1.1Thistestmethodcoverstheprocedureandequipmentformeasuringthepenetrationoftestparticlesthroughhigh-efficiencyparticulateair(HEPA)filtersystemsusingalaseraerosolspectrometer(LAS).ThistestmethodprovidesthecapabilityofevaluatingtheoveralleffectivenessofHEPAfiltersystemsconsistingofoneortwofilterstages.1.2Theaerosolsusedfortestinghaveaheterodispersesizedistributioninthesubmicrometerdiameterrangefrom0.1to1.0181m.1.3Thepurposeforconductingin-placefiltertestingbythistestmethodisintheabilitytodeterminepenetrationofmulti-stageinstallations,withoutindividualstagetests.Particlepenetrationaslowas10-8canbemeasuredbythistestmethod.Also,theLASprovidesameasureofpenetrationfordiscreteparticlesizes.1.4MaximumpenetrationforaninstalledHEPAfiltersystemis5X10-4foronefilterstage,and2.5X10-7fortwostagesinseriesisrecommended.Note1--Acceptancepenetrationcriteriamustbespecifiedintheprogram,orownersspecifications.ThepenetrationcriteriasuggestedinthistestmethodisreferencedinRef(1).1.5ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Specificprecautionarystatementsaregivenin9.6.
【中国标准分类号】:J77
【国际标准分类号】:23_120
【页数】:12P.;A4
【正文语种】: