An Rarraba Fitilolin Tabbacin Fashewa zuwa Matakai da yawa

An rarraba hasken da ke hana fashewa zuwa kashi uku: IIA, IIB, da IIC.

Babban darajar IIA

Ya dace da wuraren da abubuwa masu kama da mai, kamar gidajen mai. Wakilin gas na wannan rukuni shine propane.

Babban darajar IIB

Ana amfani dashi a cikin masana'antu gabaɗaya inda iskar gas masu haɗari suke. Ethylene shine wakilin gas na wannan rarrabuwa.

Babban darajar IIC

An tsara don masana'antu da aka fallasa su hydrogen, acetylene, ko carbon disulfide.