Cov khoom ntim khoom noj huv huv cov ntsiab lus tsis zoo
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Cov ntaub ntawv ntim khoom noj qab haus huv tsis muaj tus qauv sib koom ua ke tam sim no hauv tsev tsis tsim kev sib koom ua ke, kev ua tau zoo ntawm cov khoom noj khoom haus ntim khoom noj, thiab tsuas yog nyob rau hauv ib tug me me ntawm cov khoom raws li cov cai, xws li saj zawg zog ntim ntawm GB / T10004 & ndash;
2008 packing yas composite zaj duab xis, hnab, qhuav compound extrusion compound, 'qhia txog cov kuab tshuaj residue nyob rau hauv cov kev cai.
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Feem ntau ntawm cov qauv kev tu cev ntawm cov khoom ntim khoom noj tsis muaj feem xyuam rau tam sim no ntau thiab ntau hom ntim khoom noj.
Rau cov kuab tshuaj residues nrhiav tau, txawv teb chaws ntawm lub hom phiaj ntawm nws cov kev cai.
Hauv GB/T10004 & ndash;
2008 packing yas composite film, hnab, qhuav compound extrusion compound, 'cov kev cai tseem ceeb nyob rau hauv tus qauv hnyav residual npaum li cas yog tsis ntau tshaj 5 mg/m2, tab sis tsis tau qhia meej yam ntawm cov hnyav, nyob rau hauv ntau yam ntawm 5 mg / m2 tag nrho. xaiv cov kuab tshuaj kom muaj nuj nqis kuj tsis ua kom ntxaws ntxiv.
Lub teb chaws tus qauv kev noj qab haus huv tseem txwv tsis pub siv cov yas pov tseg los ua cov khoom siv raw ntawm cov khoom ntim yas.
Tab sis kuj tseem muaj ntau dua zais ntawm kev puas tsuaj, yog ua los ntawm cov khoom siv raw khoom yas ntim khoom noj.
Rau cov yas ntim cov qauv ntsuas qhov ntsuas tsis dhau xoob, lub teb chaws tus txheej txheem pawg thawj coj tab tom ua haujlwm los hloov kho thiab txhim kho cov qauv ua haujlwm.
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Feem ntau cov khoom ntim khoom cov qauv tsis yog tsuas yog ib feem ntawm qhov yuav tsum tau ntawm cov kuab tshuaj residues nrhiav kom tau tus qauv piav qhia ntawm qee qhov kev ntsuas qhov ntsuas tau yooj yim, xws li cov khoom ntim yuav tsum tsis txhob muaj ntxhiab tsw ntxhiab, ntim cov kua dej tsis tuaj yeem tsis muaj ntxhiab tsw ntxhiab, thiab lwm yam, tab sis muaj yog tsis muaj cov cim qhia txog qhov yuav tsum tau muab tso rau pem hauv ntej.
Lub ntim khoom noj nyob rau hauv tus txheej txheem ntawm ntau lawm thiab inevitable tshwm sim residual kuab tshuaj.
Nyob rau hauv gravure printing yas composite khoom thiab hnyav qhuav compound txheej txheem, yuav tsum tau siv ntau cov organic hnyav xws li toluene, ethyl acetate thiab ethyl ketone, thiab lwm yam, raws li cov kev cai ntawm cov txheej txheem ntawm cov kuab tshuaj nyob rau hauv cov txheej txheem ntawm ntau lawm yuav tsum. yuav evaporate, tab sis rau ntau yam nyob rau hauv qhov tseeb ntau lawm yuav yeej ib txwm muaj ntau los yog tsawg yog tsis kiag li volatile hnyav, hu ua cov residual kuab tshuaj.
Cov kuab tshuaj residual yog ib qho kev sib xyaw ua ke ntawm ntau hom hnyav, feem ntau yog thaum cov ntsiab lus ntawm cov kuab tshuaj residual qis dua ib qho kev pib muaj nqis rau tib neeg lub siab tsis hnov tsw tsis tuaj yeem hnov nws lub neej, tab sis siab hnyav residue tib neeg lub siab tuaj yeem pom.
Xws li PVC (
PVC)
Yas qhwv rau mob qog noj ntshav tau ua rau muaj kev cuam tshuam zoo hauv tsev.
GB9681—
1988 cov khoom ntim PVC molding khoom noj qab haus huv tus qauv 'nyob rau hauv cov kev cai tshwj xeeb, vinyl chloride monomer cov ntsiab lus yog tsawg dua los yog sib npaug rau 1 mg ib kilogram.
Ib tug vinyl chloride monomer muaj pes tsawg leeg yog muaj nyob rau hauv PVC cling zaj duab xis, tom qab nws yog pab rau tib neeg lub cev muaj carcinogenicity.
Cov European Union thiab Tebchaws Meskas, Nyiv, tau txwv cov khoom no siv rau zaub mov.
Hloov kho ob peb zaug, tab sis feem ntau ua rau qee qhov kev hloov pauv no.
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Cling zaj duab xis txheej xwm & thoob plaws;
Ib zaug ntxiv nthuav tawm peb lub teb chaws cov txheej txheem cuam tshuam tau tshaj tawm txoj haujlwm lag luam.
Yog li ntawd, cov khoom ntim khoom noj rau cov kuab tshuaj residues nrhiav kom tau ib qho quantitative index yog qhov tseem ceeb.
