Umehluko Phakathi Kwamazinga Obufakazi Bokuqhuma IIB kanye ne-IIC

Amathuluzi angaqhumisi ngaphakathi kwe-Class II ahlukaniswe ngokwezigaba: Ikilasi IIA, Ikilasi IIB, kanye ne-Class IIC. Izilinganiso zilandela ukulandelana: I-IIC > IIB > IIA.

Isigaba Sesimo	Ukuhlukaniswa Kwegesi	Amagesi amele	I-Minimum Ignition Spark Energy
Ngaphansi Kwemayini	I	I-Methane	0.280mJ
Izimboni Ngaphandle Kwezimayini	IIA	I-Propane	0.180mJ
	IIB	I-Ethylene	0.060mJ
	I-IIC	I-hydrogen	0.019mJ

Izitholi zegesi ezilinganiselwe ngezimo ze-IIC zokuvikela ukuqhuma zifanele wonke amagesi avuthayo; nokho, Izitholi ze-IIB ziyehluleka ukuthola i-H2 (i-hydrogen), C2H2 (i-acetylene), kanye CS2 (i-carbon disulfide), okuyizici zesigaba se-IIC.