Koluphi uhlobo lweeMeko zokuSebenza iNqanaba loQhobo-bubungqina be-Bt4 esetyenzisiweyo

Udidi lwe-IIB lufanelekile kwiindawo apho imixube eqhumayo yeegesi ze-IIB kunye nomoya zenzeka.

Iqela legesi/iqela lobushushu	T1	T2	T3	T4	T5	T6
IIA	I-formaldehyde, itoluene, imethyl ester, iacetylene, propane, iacetone, iasidi ye-acrylic, benzene, isitayile, icarbon monoxide, i-ethyl acetate, iacetic acid, iklorobenzene, i-methyl acetate, iklorine	IMethanol, i-ethanol, ethylbenzene, ipropanol, ipropylene, ibutanol, butyl acetate, i-amyl acetate, i-cyclopentane	IPentane, ipentanol, hexane, i-ethanol, iheptane, iokteni, cyclohexanol, iturpentine, naphtha, i-petroleum (kuquka nepetroli), amafutha amafutha, pentanol tetrachloride	IAcetaldehyde, trimethylamine		I-Ethyl nitrite
IIB	Ipropylene ester, idimethyl ether	Butadiene, epoxy propane, ethylene	Idimethyl ether, acrolein, i-hydrogen carbide
IIC	Ihydrogen, igesi yamanzi	Iacetylene			Ikhabhoni disulfide	I-ethyl nitrate

Ukuhlelwa kobungqina bokudubula kohlulwe ngokwamanqanaba aphambili emigodini kunye nenqanaba lesibini kwiifektri. Ngaphakathi kwinqanaba lesibini, ulwahlulo olungaphantsi lubandakanya IIA, IIB, kunye ne-IIC, ngokonyuka ngolungelelwano lwesakhono sokuthintela uqhushumbo: IIA < IIB < IIC. The 'T' category denotes ubushushu amaqela. 'T’ Ukulinganisa kuthetha ukuba izixhobo zigcina iqondo lokushisa elingaphezulu kwe-135 ° C, nge-T6 ukuba lelona nqanaba liphezulu lokhuseleko, ikhuthaza ubushushu obuphantsi bungaphantsi.

Ekugqibeleni, Le mveliso yoBungqina boPhando yenziwa njenge ukhuselekile ngaphakathi isixhobo sombane, Ijolise ekusebenziseni neegesi zeklasi ze-Bises apho iqondo lobushushu elingaphezulu alidluli kwi-135 ° C.