Lub koob yees duab pov thawj tawg raug cais raws li kev phom sij

Lub ntsiab lus ntawm Explosive Cheebtsam: Suav Standard, North American Standard
Gas (CLASS I) yog ib qho chaw uas muaj cov roj sib tov sib xyaw ua ke tsis tu ncua lossis ntev ntev hauv qhov xwm txheej ib txwm muaj. Zone 0 (Div.1)
Cheeb tsam 1 qhov twg cov roj sib tov tawg tuaj yeem tshwm sim nyob rau hauv ib txwm muaj
Cov khoom tawg tawg tsis zoo li tshwm sim nyob rau hauv ib txwm muaj, thiab tsuas yog qee zaus lossis luv luv tshwm sim hauv qhov xwm txheej txawv txav hauv Zone 2 Div.2
Plua plav lossis fibers (CLASS II/III): Raws li ib txwm muaj, cov plua plav tawg lossis cov khoom sib xyaw nrog huab cua tuaj yeem tshwm sim tsis tu ncua, nquag rau lub sijhawm luv luv, lossis muaj nyob rau lub sijhawm ntev hauv Zone 10 Div.1
Raws li ib txwm muaj, cov plua plav tawg lossis cov khoom sib xyaw ntawm cov fibers uas muaj cua sov yuav tsum tsis txhob tshwm sim, tsuas yog nyob rau thaj chaw uas lawv qee zaus lossis luv luv, xws li Div.2 hauv Cheeb Tsam 11
Tus lej thib peb code
I - Cov khoom siv hluav taws xob rau cov mines thiab siv hauv av
II - Cov khoom siv hluav taws xob rau cov chaw tsim khoom
4th encoding
Kev faib tawm ntawm Class II explosive gas ib puag ncig
Ua hauj lwm yam mob qeb theem tus neeg sawv cev roj yam tsawg kawg nkaus ignition spark lub zog siab tshaj plaws kev nyab xeeb kev sib txawv MESG (mm) yam tsawg kawg nkaus ignition tam sim no piv MICR
Hauv av methane 0.280mJ
Factory IIA propane 0.180mJ MESG ≥ 0.9 MICR>0.8 sab nraum kuv
IIB Ethylene 0.060mJ 0.9>MESG>{{0}}.
IIC hydrogen 0.019mJ 0.5 ≥ MESG 0.45>MICR
5th encoding
Pab pawg kub ntawm cov khoom siv hluav taws xob hauv Chav Kawm II explosive gas ib puag ncig
Temperature group Ntuj kub T (degree) Cov cuab yeej siv hluav taws xob sib xyaw ua kom pom qhov kub thiab txias (degree)
T1 T Ntau dua lossis sib npaug rau 450 46 hom hydrogen, acrylonitrile, thiab lwm yam. 450
T2 450>T Ntau dua lossis sib npaug rau 300 Acetylene, ethylene thiab lwm yam 47 hom 300
T3 300>T Ntau dua lossis sib npaug rau 200 36 hom roj av, butenal, thiab lwm yam. 200
T4 200>T Ntau dua lossis sib npaug rau 135 Acetaldehyde, Tetrafluoroethylene, thiab lwm yam 6 hom ntawm 135
T5 135>T Ntau dua lossis sib npaug rau 100 Carbon disulfide 100
T6 100>T Ntau dua lossis sib npaug rau 85 Ethyl nitrate thiab ethyl nitrite 85