Kev tsom xam ntawm kev siv cov qauv ntawm isocyanate catch tus neeg sawv cev

Raws li ib qho tseem ceeb tseem ceeb hauv kev tsim cov khoom siv polyurethane, qhov zoo ntawm ISOCYANATE CAPTING cov neeg sawv cev cuam tshuam rau kev ua haujlwm ntawm cov khoom kawg. Nrog kev txhim kho ntawm cov qauv txheem thiab kev tiv thaiv ib puag ncig hauv kev lag luam tshuaj lom neeg siv tshuaj lom neeg yuav tsum ua raws cov qauv kev siv thoob ntiaj teb thiab cheeb tsam. Kab lus no yuav tshawb xyuas nws cov qauv kev siv tseem ceeb los pab cov kws ua lag luam tawm txawv teb chaws tau txais txiaj ntsig kev ua lag luam tau zoo dua.

Cov Qauv Thoob Ntiaj Teb

Cov neeg ua haujlwm tseem ceeb ntawm ISOCYANATE CAPT cov neeg sawv cev suav nrog cov ntsiab lus tshiab, ISO thoob ntiaj teb kev xav tau, kev ntsuas ntawm cov pab pawg ua haujlwm, cov qauv ntsuas thiab ntim cov khoom lag luam. Ib qho ntxiv, Astm D4878-16 "Txuj Ci Tshwj Xeeb rau Isocyanate Chais Cov Neeg Sawv Cev Rau Polyurethane Txheej Txheem xws li kev cia khoom ruaj khov thiab ua kom muaj kev cuam tshuam.

Cov Qauv Txheej Txheem Hauv Cheeb Tsam

Cov cheeb tsam sib txawv muaj kev tiv thaiv ib puag ncig ib puag ncig thiab kev nyab xeeb rau ISOCYANATE CAPT cov neeg sawv cev. EU ncav cuag cov cai uas yuav tsum tau ua raws li SVHC (cov khoom muaj kev txhawj xeeb heev) Sau cov kev txwv thiab cov cim thiab ntim khoom). Tsoomfwv Meskas tswj hwm cov khoom siv volatile (VOC) cov pa hluav taws xob thiab cov neeg ua haujlwm raug txwv los ntawm EPA (OSHA kev nyab xeeb thiab kev ua haujlwm tswj hwm kev nyab xeeb). Cov tuam txhab ua lag luam tawm txawv teb chaws yuav tsum kho cov khoom tsim raws cov phiaj xwm raws li phiaj los ua kom paub tseeb.

Cov ntsiab lus tseem ceeb ntawm kev tswjhwm zoo

Kev tswj hwm zoo ntawm isocyanate catch cov neeg sawv cev yuav tsum tsom rau cov ntsiab lus pub dawb oocyanate. Siab heev yuav ua rau kom nrawm dua los yog tshuaj lom. Cov txheej txheem thoob ntiaj teb feem ntau yuav tsum muaj cov kev nco qab los tsawg dua 0.5%, thiab qee cov ntawv thov siab tseem yuav tsum tau tsawg dua 0.1%. Tsis tas li ntawd, viscosity kev ruaj khov cuam tshuam rau kev tsim kho cov ntsiab lus, thiab kho cov ntsiab lus ntom ntom ntom ntom nti thiab kev kho tshuab lub zog ntawm cov khoom siv kawg.

Lub ntsiab

Cov qauv siv ntawm ISOCYANATE CAPT cov neeg sawv cev koom nrog Kev Ua Haujlwm, Kev tiv thaiv ib puag ncig thiab kev nyab xeeb. Cov tuam txhab lag luam tawm txawv teb chaws yuav tsum tau ua tib zoo saib xyuas cov khoom lag luam zoo li ISO thiab ASTM thiab ua raws li txoj kev ua raws txoj cai. Los ntawm kev tswjhwm nruj, peb tsis tuaj yeem txhim kho cov khoom lag luam muaj kev sib tw, tab sis kuj tseem muab cov neeg siv khoom thoob ntiaj teb nrog kev nyab xeeb dua.