Na Mataqali Ituvaki ni Cakacaka Cava na iVakatagedegede ni Kacabote-Ivakadinadina Bt4 vakayagataki

Na kalasi IIB e veiganiti ki na draki ka dau yaco kina na isulu kacabote ni IIB gasaukuro kei na cagi.

iLawalawa ni kasi/ivakarau ni katakata	T1	T2	T3	T4	T5	T6
IIA	Formaldehyde, toluene, methyl ester, acetylene, propane, acetone, acrylic acid, benzene, styrene, kaboni monoxide, ethyl acetate, acetic acid, chlorobenzene, methyl acetate, chlorine	Methanol, etano, ethylbenzene, propanol, propylene, butanol, butyl acetate, Amyl acetate, cyclopentane	Pentane, idabedabe ni peni, hexane, etano, heptane, octane, cyclohexanol, turpentine, naphtha, petroleum (oka kina na benisini), waiwai ni waiwai, pentanol tetrachloride	Acetaldehyde, trimethylamine		Ethyl nitrite
IIB	Propylene ester, dimethyl ether	Butadiene, epoxy propane, ethylene	Dimethyl ether, acrolein, hydrogen carbide
IIC	Hydrogen, kasi wai	Acetylene			Disulfide ni kaboni	Ethyl nitrate

Na ivakatagedegede ni kacabote-ivakadinadina e wasei ki na ivakatagedegede taumada ni koula kei na ikarua ni ivakatagedegede ni buli iyaya. Ena loma ni ikarua ni ivakatagedegede, ivakatagedegede lalai e oka kina na IIA, IIB, kei na IIC, ena kena toso cake na ivakarau ni kena rawa ni kacabote na ivakadinadina: IIA < IIB < IIC. The 'T' category denotes ivakarau ni katakata ilawalawa. Dua na ' T’ rating e kena ibalebale ni iyaya e maroroya tiko e dua na ivakarau ni bula e ra ni 135°C, ena T6 na ivakatagedegede vinaka duadua ni veitaqomaki, veivakacaucautaki ena kena ivakarau lailai duadua e rawa.

Kena itinitini, na ivoli ni kacabote oqo e caka me taqomaki vakai koya misini livaliva, e nakiti me vakayagataki ena kalasi B gasa ni vanua e sega ni sivia na 135°C.