Ib chav huv huv yuav tsum ua tau raws li cov qauv ntawm International Organization of Standardization (ISO) txhawm rau muab faib. ISO, nrhiav tau nyob rau hauv 1947, tau tsim nyob rau hauv thiaj li yuav siv thoob ntiaj teb cov qauv rau rhiab heev ntawm kev tshawb fawb thiab kev lag luam kev coj ua, xws li ua hauj lwm nrog tshuaj, volatile cov ntaub ntawv, thiab rhiab instruments. Txawm hais tias lub koom haum tau tsim los ntawm kev yeem, cov qauv tsim tau tsim cov hauv paus ntsiab lus hauv qhov chaw uas tau txais txiaj ntsig los ntawm cov koom haum thoob ntiaj teb. Niaj hnub no, ISO muaj ntau dua 20,000 tus qauv rau cov tuam txhab siv los qhia.
Thawj chav huv huv tau tsim thiab tsim los ntawm Willis Whitfield hauv xyoo 1960. Kev tsim thiab lub hom phiaj ntawm chav huv yog los tiv thaiv nws cov txheej txheem thiab cov ntsiab lus ntawm ib puag ncig sab nraud. Cov neeg uas siv chav tsev thiab cov khoom uas tau sim los yog tsim nyob rau hauv nws yuav cuam tshuam ib chav huv si los ntawm kev ua raws li nws cov qauv kev huv. Cov kev tswj tshwj xeeb yuav tsum tau tshem tawm cov teeb meem no kom ntau li ntau tau.
Kev faib chav huv huv ntsuas qhov kev huv huv los ntawm kev suav qhov loj thiab qhov ntau ntawm cov khoom ib lub cubic ntim ntawm huab cua. Cov chav nyob pib ntawm ISO 1 thiab mus rau ISO 9, nrog ISO 1 yog qib siab tshaj ntawm kev huv thaum ISO 9 yog qhov qias neeg tshaj plaws. Cov chav huv feem ntau poob rau hauv ISO 7 lossis 8 ntau yam.
International Organization of Standardization Particulate Standards
| Chav kawm | Maximum Particle/m3 | FED STD 209 E Sib npaug | |||||
| > = 0.1 µm | > = 0.2 µm | > = 0.3 µm | > = 0.5 µm | > = 1 µm | > = 5 µm | ||
| ISO 1 | 10 | 2 | |||||
| ISO 2 | 100 | 24 | 10 | 4 | |||
| ISO 3 | 1,000 | 237 | 102 | 35 | 8 | Chav Kawm 1 | |
| ISO 4 | 10,000 | 2,370 ib | 1,020 ib | 352 ib | 83 | Chav Kawm 10 | |
| ISO 5 | 100,000 | 23.700 Nws | 10,200 ib | 3,520 ib | 832 ib | 29 | Chav Kawm 100 |
| ISO 6 | 1,000,000 | 237,000 Nws | 102,000 ib | 35.200 Nws | 8,320 ib | 293 ib | Chav Kawm 1,000 |
| ISO 7 | 352,000 Nws | 83.200 Nws | 2,930 ib | Chav Kawm 10,000 | |||
| ISO 8 | 3,520,000 ib | 832,000 ib | 29.300 Nws | Chav Kawm 100,000 | |||
| ISO 9 | 35.200.000 Nws | 8.320.000 Nws | 293.000 Nws | Chav Cua | |||
Tsoom Fwv Teb Chaws Standards 209 E – Clean Room Standards Classifications
| Maximum Particle/m3 | |||||
| Chav kawm | > = 0.5 µm | > = 1 µm | > = 5 µm | > = 10 µm | > = 25 µm |
| Chav Kawm 1 | 3,000 | 0 | 0 | 0 | |
| Chav kawm 2 | 300,000 | 2,000 | 30 | ||
| Chav kawm 3 | 1,000,000 | 20,000 | 4,000 | 300 | |
| Chav Kawm 4 | 20,000 | 40,000 | 4,000 | ||
Yuav ua li cas khaws chav huv huv
Txij li lub hom phiaj ntawm chav huv yog los kawm lossis ua haujlwm ntawm cov khoom muag muag thiab tsis yooj yim, nws yuav zoo li tsis zoo li cov khoom tsis huv yuav muab tso rau hauv ib puag ncig zoo li no. Txawm li cas los xij, ib txwm muaj kev pheej hmoo, thiab cov kauj ruam yuav tsum tau ua los tswj nws.
Muaj ob qhov sib txawv uas tuaj yeem txo qhov kev faib tawm ntawm chav huv. Thawj qhov sib txawv yog cov neeg siv chav. Qhov thib ob yog cov khoom lossis cov khoom uas tau coj los rau hauv. Txawm hais tias kev mob siab rau ntawm cov neeg ua haujlwm hauv chav huv huv, kev ua yuam kev yuav tshwm sim. Thaum muaj kev kub ntxhov, tib neeg yuav hnov qab ua raws li tag nrho cov txheej txheem, hnav khaub ncaws tsis tsim nyog, lossis tsis saib xyuas lwm yam ntawm kev saib xyuas tus kheej.
Hauv kev sim los tswj cov kev saib xyuas no, cov tuam txhab muaj cov kev xav tau rau hom khaub ncaws huv huv cov neeg ua haujlwm yuav tsum hnav, uas cuam tshuam los ntawm cov txheej txheem yuav tsum tau ua hauv chav huv. Cov khaub ncaws huv huv ib txwm muaj xws li ko taw npog, kaus mom lossis plaub hau nets, qhov muag hnav, hnab looj tes thiab hnav ris tsho. Cov txheej txheem nruj tshaj plaws qhia txog kev hnav khaub ncaws puv lub cev uas muaj cov khoom siv huab cua rau tus kheej uas tiv thaiv tus neeg hnav kom tsis txhob muaj qhov huv hauv chav nrog lawv ua pa.
Teeb meem ntawm kev tswj xyuas chav huv huv
Qhov zoo ntawm cov huab cua circulating system nyob rau hauv ib chav tsev huv si yog qhov teeb meem tseem ceeb tshaj plaws uas muaj feem xyuam rau kev tswj xyuas chav huv huv. Txawm hais tias chav huv huv twb tau txais kev faib tawm, qhov kev faib tawm tuaj yeem hloov pauv tau yooj yim lossis ploj tag nrho yog tias nws muaj qhov tsis zoo ntawm huab cua pom. Lub kaw lus zoo heev nyob ntawm tus naj npawb ntawm cov lim dej xav tau thiab kev ua haujlwm ntawm lawv cov huab cua ntws.
Ib qho tseem ceeb uas yuav tsum tau xav txog yog tus nqi, uas yog qhov tseem ceeb tshaj plaws ntawm kev tswj xyuas chav huv. Hauv kev npaj tsim kom muaj chav huv huv rau ib tus qauv tshwj xeeb, cov neeg tsim khoom yuav tsum tau ua qee yam los xav txog. Thawj yam khoom yog tus naj npawb ntawm cov lim dej uas yuav tsum tau khaws cia hauv chav tsev huab cua zoo. Qhov thib ob uas yuav tsum tau xav txog yog lub tshuab cua txias kom ntseeg tau tias qhov kub thiab txias hauv chav huv huv tseem nyob ruaj khov. Thaum kawg, qhov thib peb yog qhov tsim ntawm chav tsev. Feem ntau, cov tuam txhab yuav thov kom muaj chav huv huv uas loj dua lossis me dua qhov lawv xav tau. Yog li ntawd, tus tsim ntawm chav huv huv yuav tsum tau ua tib zoo txheeb xyuas kom nws ua tau raws li qhov xav tau ntawm nws daim ntawv thov.
Cov kev lag luam dab tsi xav tau cov kev faib chav huv huv tshaj plaws?
Raws li kev siv thev naus laus zis, muaj cov yam tseem ceeb cuam tshuam txog kev tsim cov cuab yeej siv cuab yeej technology. Ib qho ntawm cov teeb meem loj yog kev tswj hwm cov ntsiab lus me me uas tuaj yeem ua rau ntxhov siab rau kev ua haujlwm ntawm cov cuab yeej rhiab heev.
Qhov kev xav tau pom tseeb tshaj plaws rau ib puag ncig tsis muaj paug yog kev lag luam kws tshuaj uas cov vapors lossis cov pa phem tuaj yeem ua rau kev tsim cov tshuaj. Kev lag luam uas tsim cov khoom siv me me me me rau cov cuab yeej meej yuav tsum tau lees paub tias kev tsim khoom thiab kev sib dhos yog kev tiv thaiv. Cov no tsuas yog ob ntawm ntau qhov kev lag luam uas siv chav huv. Lwm qhov yog aerospace, optics, thiab nanotechnology. Cov cuab yeej siv tau dhau los ua me me thiab muaj kev nkag siab ntau dua li yav dhau los, uas yog vim li cas chav huv huv yuav txuas ntxiv mus ua ib qho tseem ceeb hauv kev tsim khoom thiab kev tsim khoom.
Post lub sij hawm: Mar-29-2023