Cov teeb meem yooj yim ntawm Cov Hluav Taws Kub Extinguishing Agent FM 200 (uas yog, heptafluoropropane): tshuaj lom cov tshuaj ntawm heptafluoropropane HFC 227 ea yog CF 3 CHFCF 3. FM 200 yog qhov hloov tau zoo tagnrho rau halon. Nws tsis muaj qhov kev cuam tshuam zoo li ozone txheej ntawm cov huab cua. Lub ODP ntawm ozone depleting cov huab cua yog xoom, tab sis nws muaj lub tsev ntsuab zoo ntxim nyiam. Nws lub peev xwm GWP yog txij li 2050. Kev Tua Hluav Taws Kub HFC - 227 EA muaj qhov tua hluav taws zoo, thiab pom zoo los ntawm Asmeskas Chaw Tiv Thaiv Ib Puag Ncig thiab pom zoo los ntawm Asmeskas NFPA 2001 thiab ISO.
Hluav taws extinguishing mechanism ntawmHluav Taws Kub Extinguishing HFC-227EA Roj rau Halon 1301 Hloov Hloov: Lub tshuab hluav taws kub tua hluav taws xob ntawm FM 200 zoo ib yam li hluav taws kub tua hluav taws ntawm halogenated series hluav taws tua hluav taws, uas yog pawg ntawm cov tshuaj tua hluav taws. Cov cua sov ua kom cov neeg tua hluav taws ua rau cov tshuaj fluorine-dawb radicals, thiab H, The OH- thiab O2-radicals ua haujlwm nyob rau hauv cov pa roj theem, thiaj li tso cov tshuaj lom neeg hauv cov txheej txheem sib txuas los tua hluav taws.
Qhov zoo ntawm FM 200 qhov hluav taws kub tua hluav taws: FM 200 muaj qhov hluav taws kub zoo tua hluav taws, hluav taws kub tua hluav taws ceev, cov nyhuv zoo, hluav taws kub tua hluav taws tsawg (8-10%), uas yog qhov ze ze ntawm qhov ntawd ntawm Halon 1301 qhov hluav taws tua hluav taws (5-8%) Lub sijhawm ceev, kev tsuag tshuaj txau ua tiav li ntawm 8 vib nas this txog rau 10 vib nas this, thiab hluav taws tau tua sai sai.
Qhov tsis zoo ntawm FM 200 lub tua hluav taws: Raws li hloov chaw rau halon, ntxiv rau kev txiav txim siab txog kev tiv thaiv ib puag ncig ntawm kev hloov chaw nws tus kheej, mob hnyav ntawm kev hloov pauv nws tus kheej thiab muaj kev cuam tshuam ntawm lwm yam tshuaj uas tsim tawm thaum tua hluav taws ntawm cov khoom tiv thaiv kuj yuav tsum raug xam tias yog.
1) Cov pa tshuaj toxicity tuaj yeem raug ntsuas nrog cov ntsuas tom qab, uas yog: NOAEL, LOAEL, LC 50.
NOAEL: Nws yog qhov siab tshaj plaws ntawm qhov tsis muaj qhov tsis zoo tshwm sim. Ntawm qhov kev kub siab no, tsis pom muaj kev tshwm sim tsis zoo tshwm sim hauv cov tsiaj sim thaum lub sijhawm sim tsiaj. Thaum tus qauv tsim ntawm txhua qhov chaw tua hluav taws tsawg dua NOAEL, nws tuaj yeem raug txiav txim siab kom tsim nyog rau thaj chaw manned lossis thaj chaw ua haujlwm.LOAEL: Nws yog qhov qis tshaj plaws ntawm qhov teeb meem tsis zoo tuaj yeem pom. Ntawm lub peev xwm no, cov tshuaj lom neeg muaj peev xwm tuaj yeem pom hauv cov tsiaj sim thaum lub sijhawm sim tsiaj.
