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FumeHoodTraining通风橱培训
1FumeHoodscont’d通风橱AllfumehoodsatJRLaboratorieshaveaminimumfacevelocityof0.75m/sJR实验室所有通风橱最小表面速度是0.75米/秒ThisaccommodatesWCBregulationsfortherequiredfacevelocitywhenworkingwithcarcinogens,orpossiblecarcinogensinafumehood这符合WCB法规中关于通风橱中使用致癌物质或可能致癌物质表面速度的要求
2FumeHoodscont’d通风橱Ahigherfacevelocity(>0.75m/s)isnotnecessarilybetter再高的表面速度(>0.75m/s)不一定好Anextremelyhighfacevelocitycancauseturbulenceandforcetheairbackouttowardtheoperator太高的表面速度可能导致扰动,使空气返吹向操作者
3FumeHoodscont’d通风橱Thefacevelocitywillnotbemaintainedifthesashisplacedabovethecertifiedmarkingsonthefumehood如果窗框置于通见橱规定标记以上,就不能保持表面速度Thesashplacementmarkingiscertifiedbyaprofessionaltoensureafacevelocityof0.75m/sismaintainedacrossthefrontofthefumehood窗框放置标记是由专业人员认定的,以保证在通风橱的前部表面速度保持在0.75m/s
4FumeHoodscont’d通风橱Leavesashloweredwhen:将窗框拉下Notattendingexperiment不需要人看管的实验Overnight隔夜
5FumeHoodscont’d通风橱Avoidrapidmovementaroundthefumehood避免在通风橱周围快速移动Atechnicianwalkingrapidlypastthefrontofafumehoodwillcauseturbulenceintheair技术人员快速走过通风橱,会引起空气扰动Result:Airfromtheinsideofthefumehoodisdrawnout,andfollowsthetechnician后果:空气从通风橱中溢出,随操作人员的方向流动
6FumeHoodscont’d通风橱Allequipment/apparatusmustbeplacedatleast6inchesbehindthefrontofthefumehood所有设备/仪器须置于离通风橱门至少6英寸Airflowisotherwiseblockedandforcedbackouttowardstheoperator否则阻碍空气流动,迫使空气流向操作人员Allfumehoodsmusthavemarkingindicatingthe6inchposition所有通风橱须标记6英寸位置
7FumeHoodscont’d通风橱Largepiecesofequipmentmustberaisedafewinchesofftheworksurface大型设备需举高,离开工作表面几英寸Allowsairtotravelunderneaththeequipmenttowardsthelowerbaffleopening使空气在设备下面流向低隔板孔
8FumeHoodscont’d通风橱DONOTstoreanythinginthefumehoodthatcanbesafelystoredelsewhereinthelab不得在通风橱中存放可在实验室其它地方安全存放的物品Clutterwillcauseturbulenceofincomingair混乱放置将引起进入通风橱空气的扰动
9FumeHoodscont’d通风橱DONOTblocktherearbaffleopening不要阻塞后隔板孔Thebaffleopeningisthespacewhereincomingairisexhaustedout隔板孔是进气和排气通道Ifthisisblocked,theairhasnowheretogo,causesturbulence,andcanresultinairbeingforcedbackouttowardtheoperator如果被阻塞,空气无处可去,引起扰动,导致空气被迫流向操作人员
10FumeHoodscont’d通风橱Baffles隔板Thebackpanelsofafumehoodwhichprovideopeningforoutgoingair通风橱后面的档板提供排气孔Adjustable可调节Lowerbaffle–heavysolvents;Topbaffle–lightsolvents低隔板-易挥发溶剂,高档板-易挥发溶剂
11FumeHoodscont’d通风橱DONOTadjustbaffleopeningaftercertificationbyaprofessional专业人员确认后不要调整隔板孔Bafflesmayonlybeadjustedif:隔板只能在下列情况下调整Achangeintheroomwillaffectthefunctionofthefumehood房屋的变化可能影响通风橱的功能Differenttypesofchemicals(heavyvs.light)willbeusedinthefumehood通风橱中不同类型的化学品ThesafetyofficerisinformedBEFOREadjustmentismade调整之前通知安全员
12FumeHoodscont’d通风橱Fumehoodsareservicedevery6monthsbyH.H.Hawkins通风橱每六个月由H.H.Hawkins维护一次Cleaningofbafflesandinsideoffumehood(in-house)清洁隔板和通风橱内部(实验室做)Bafflepositioningcheck(H.H.Hawkins)隔板位置检查SmokeTest(H.H.Hawkins)烟雾测试Facevelocitycertification(H.H.Hawkins)表面速度核查
13FumeHoodscont’d通风橱Threesizesoffumehoods通风橱的三种规格3ft:Onepersononlycanworkinthefumehoodatonetime只容纳一个人使用4ft:1.5peoplecanworkinthefumehoodatonetime只容纳1.5个人使用5ft:2peoplecanworkinthefumehoodatonetime容纳2个人使用
