Ho Bolela'ng ka Phallo-Bopaki Level ABC e Bolelang

The “abc” e emela likarolo tsa khase, e arotsoe ka mekhahlelo e meraro-IIA, IIB, le IIC-ho latela lekhalo le sireletsehileng la liteko (MESG) kapa bonyane ba motlakase o tukang (MIC).

Boemo ba Sehlopha	Karolelano ea Khase	Likhase tse emetseng	Minimum Ignition Spark Energy
Tlas'a Morafo	I	Methane	0.280mJ
Lifeme Kantle ho Morafo	IIA	Propane	0.180mJ
	IIB	Ethylene	0.060mJ
	IIC	Haedrojene	0.019mJ

Ea tsena, IIC classification e nkoa e le kotsi ka ho fetisisa, ka IIB le IIA tse latelang ka tatellano e fokotsehang ea kotsi. Likhase tse oelang tlas'a sehlopha sa IIC li kenyelletsa hydrogen, acetylene, carbon disulfide, ethyl nitrate, le khase ea metsi. Tse sehlopheng sa IIB li kenyelletsa ethylene, khase ea onto ea coke, propyne, le haedrojene sulfide. Sehlopha sa IIA se kenyelletsa likhase tse kang methane, ethane, benzene, le diesel.