Cov neeg tau txais kev pab hauv lub neej niaj hnub no tau them nyiaj ntau dua rau lub tswv yim ntawm kev tiv thaiv ib puag ncig, thiab cov neeg siv khoom feem ntau cov ntsiab lus ntawm cov khoom zoo tau hloov pauv ntsiag to.Qhov kev nkag siab zoo ntawm cov khoom 'tsim' kuj tau dhau los ua ib qho ntawm cov cim tseem ceeb rau cov neeg siv khoom los ntsuas cov khoom zoo.Feem ntau cov neeg siv khoom tsuas hais txog cov khoom lag luam xws li: "Thaum koj qhib lub pob, muaj cov ntxhiab tsw ntxhiab tsw ntxhiab, uas yog pungent heev" los yog "Thaum koj qhib lub thawv khau, muaj cov ntxhiab tsw ntawm cov kua nplaum, thiab cov khoom xav tau. qis dua".Qhov cuam tshuam yog unbearable rau ntau manufacturers.Smell yog qhov kev xav zoo tshaj plaws ntawm cov neeg siv khoom.Yog tias yuav tsum muaj qhov ntsuas qhov tseeb, peb yuav tsum nkag siab lub tswv yim ntawm VOCs.
1. VOCs yog dab tsi thiab lawv cov kev faib tawm?
VOCs yog lub npe luv ntawm lus Askiv lub npe "Volatile Organic Compounds" ntawm volatile organic tebchaw.Ob qho tib si Suav volatile organic tebchaw thiab lus Askiv volatile organic tebchaw kuj ntev, yog li nws yog kev cai siv VOCs lossis VOC luv luv.TVOC(Tag nrho Volatile Organic Compounds) yog txhais raws li qee cov qauv: ua piv txwv nrog Tenax GC thiab Tenax TA, soj ntsuam nrog cov kab tsis-polar chromatographic (polarity Performance index tsawg dua 10), thiab lub sijhawm khaws cia yog nruab nrab ntawm n-hexane thiab n-hexadecane. Lub sij hawm dav dav rau volatile organic tebchaw.Nws qhia txog qib tag nrho ntawm VOCs thiab tam sim no feem ntauxeem yuav tsum tau. SVOC(Semi Volatile Organic Compounds): Cov organic tebchaw uas muaj nyob hauv huab cua tsis yog VOCs xwb.Qee cov organic tebchaw tuaj yeem tshwm sim ib txhij nyob rau hauv lub xeev gaseous thiab cov khoom me me ntawm chav tsev kub, thiab qhov piv ntawm ob theem yuav hloov raws li qhov kub thiab txias.Xws li cov organic tebchaw hu ua semi-volatile organic compounds, los yog SVOCs luv luv.NVOCTseem muaj qee cov organic tebchaw uas tsuas muaj nyob rau hauv cov khoom me me ntawm chav tsev kub, thiab lawv tsis yog cov organic sib txuas, hu ua NVOCs.Txawm hais tias nws yog VOCs, SVOCs lossis NVOCs hauv huab cua, lawv txhua tus koom nrog cov txheej txheem hauv huab cua thiab lub cev, thiab qee qhov ntawm lawv tuaj yeem ua rau muaj kev phom sij rau tib neeg kev noj qab haus huv.Lawv coj cov teebmeem ib puag ncig xws li cuam tshuam rau huab cua zoo, cuam tshuam rau huab cua thiab huab cua, thiab lwm yam.
2. Dab tsi yog cov tshuaj muaj nyob hauv VOCs?
Raws li cov qauv tshuaj ntawm volatile organic compounds (VOCs), lawv tuaj yeem muab faib ua 8 pawg: alkanes, aromatic hydrocarbons, alkenes, halogenated hydrocarbons, esters, aldehydes, ketones thiab lwm yam.Los ntawm qhov kev xav ntawm kev tiv thaiv ib puag ncig, nws feem ntau yog hais txog hom volatile organic tebchaw nrog cov khoom siv tshuaj lom neeg.Feem ntau VOCs muaj xws li benzene, toluene, xylene, styrene, trichloroethylene, chloroform, trichloroethane, diisocyanate (TDI), diisocyanocresyl, thiab lwm yam.
Kev phom sij ntawm VOCs?
(1) Irritation thiab toxicity: Thaum VOCs ntau tshaj qhov concentration, lawv yuav ua rau lub qhov muag thiab ua pa ntawm tib neeg, ua rau tawv nqaij ua xua, mob caj pas thiab qaug zog;VOCs tuaj yeem yooj yim dhau los ntawm cov hlab ntsha-hlwb thiab ua rau lub hauv paus paj hlwb puas tsuaj;VOCs tuaj yeem ua rau tib neeg lub siab, lub raum, lub hlwb thiab lub paj hlwb.
(2) Carcinogenicity, teratogenicity thiab reproductive system toxicity.Xws li formaldehyde, p-xylene (PX), thiab lwm yam.
(3) Cov nyhuv tsev cog khoom, qee cov tshuaj VOCs yog cov tshuaj ozone precursor, thiab cov tshuaj tiv thaiv photochemical ntawm VOC-NOx tsub kom cov concentration ntawm ozone nyob rau hauv atmospheric troposphere thiab txhim khu lub tsev cog khoom nyhuv.
(4) Kev puas tsuaj Ozone: Raws li kev ua haujlwm ntawm lub hnub ci thiab cua sov, nws koom nrog cov tshuaj tiv thaiv ntawm nitrogen oxides los tsim ozone, uas ua rau huab cua tsis zoo thiab yog lub ntsiab lus tseem ceeb ntawm photochemical smog thiab huab cua hauv nroog thaum lub caij ntuj sov.
(5) PM2.5, VOCs nyob rau hauv huab cua account txog li 20% mus rau 40% ntawm PM2.5, thiab ib feem ntawm PM2.5 yog hloov los ntawm VOCs.
Vim li cas cov tuam txhab yuav tsum tswj VOCs hauv cov khoom?
- 1. Tsis muaj cov khoom tseem ceeb thiab cov ntsiab lus muag.
- 2. Homogenization ntawm cov khoom thiab kev sib tw hnyav.Tus nqi tsov rog tau ua rau cov neeg lag luam cov txiaj ntsig poob qis, ua rau nws tsis muaj kev vam meej.
- 3. Cov neeg siv khoom tsis txaus siab, kev tshuaj xyuas tsis zoo.Cov khoom no muaj kev cuam tshuam zoo rau kev lag luam tsheb.Thaum cov neeg siv khoom xaiv lub tsheb, ntxiv rau cov kev xav tau ntawm kev ua haujlwm, qhov taw qhia ntawm qhov tsis hnov tsw tawm ntawm lub tsheb sab hauv yog txaus los hloov qhov kev xaiv kawg.
4. Tus neeg yuav khoom tsis lees paub thiab xa cov khoom xa rov qab.Vim lub sijhawm ntev ntawm kev khaws cia hauv qhov chaw kaw ntawm lub thawv rau cov khoom siv hauv tsev, qhov tsis hnov tsw yog qhov hnyav thaum lub thawv qhib, uas ua rau cov neeg ua haujlwm thauj khoom tsis kam thauj cov khoom, tus neeg yuav khoom tsis lees paub, lossis xav tau kom meej meej. Kev tshawb xyuas qhov chaw ntawm qhov tsis hnov tsw, kev ntsuas kev phom sij, thiab lwm yam. Los yog cov khoom tso tawm cov ntxhiab tsw muaj zog thaum siv (xws li: cua fryer, qhov cub, cua sov thiab cua txias, thiab lwm yam), ua rau cov neeg siv khoom xa rov qab cov khoom.
5. Kev cai lij choj thiab kev cai.EU qhov kev hloov kho tshiab tsis ntev los no ntawmformaldehyde emission xav taunyob rau hauv Annex XVII ntawm REACH (yuav tsum tau yuav tsum tau) tso rau pem hauv ntej ntau dua cov kev cai rau export ntawm enterprise khoom.Nyob rau hauv xyoo tas los no, kuv lub teb chaws cov kev cai rau kev tswj hwm ntawm VOCs kuj tau nquag, txawm tias nyob hauv lub ntiaj teb ua ntej.Piv txwv li, tom qab qhov xwm txheej "poisonous runway" uas nyiam thoob plaws hauv lub zej zog, lub teb chaws yuav tsum muaj cov qauv kev ua si rau cov chaw ua si yas.Blue Sky Defense launched ib tug series ntawmyuav tsum taurau cov khoom siv raw khoom thiab lwm yam.
TTStau ntev tau cog lus rau kev tshawb fawb thiab kev loj hlob ntawm VOC nrhiav tshuab, muaj cov kws tshaj lij pab pawg thiab ua tiav cov txheej txheemkuajcov khoom siv, thiab tuaj yeem muab cov neeg siv khoom nrog ib qho kev pabcuam los ntawm kev tswj xyuas cov khoom kom zoo rau cov khoom kawg VOC traceability.ib.Hais txog VOC xeemVOC kuaj kev pabcuam tuaj yeem siv cov txheej txheem sib txawv rau cov khoom sib txawv thiab cov hom phiaj sib txawv: 1. Cov khoom siv raw: micro-cage bag method (sampling bag for special VOC test), thermal analysis method 2. Finished product: bag standard method VOC environmental warehouse method ( Cov kev qhia tshwj xeeb sib txawv sib txawv ntawm cov khoom sib txawv) muaj feem xyuam rau: khaub ncaws, khau, khoom ua si, khoom siv me me, thiab lwm yam Nta: Bureau Veritas muab kev pabcuam rau cov khoom siv loj loj, uas tsim nyog rau cov rooj tog ua tiav (xws li sofas, Wardrobe , thiab lwm yam) los yog kev ntsuam xyuas tag nrho ntawm cov khoom siv hauv tsev loj (tub yees, cua txias).Rau cov khoom siv hluav taws xob hauv tsev, kev ntsuam xyuas ob npaug ntawm kev khiav thiab tsis ua haujlwm ntawm tag nrho lub tshuab tuaj yeem ua rau simulate VOC tso tawm ntawm cov khoom hauv kev thauj mus los lossis chav siv hauv chav.Ob: Kev ntsuam xyuas tsw TTStau koom nrog VOC kuaj cov kev pabcuam rau lub sijhawm ntev, thiab nws muaj nws tus kheej cov ntxhiab tsw "golden nose" kev soj ntsuam pab pawg, uas tuaj yeem muabraug, Lub hom phiajthiabncaj nceesCov kev pabcuam tsw ntxhiab rau cov khoom.
Post lub sij hawm: Sep-07-2023