Le 'ese'esega i le va o Pa'u-Fa'amaoniga Level AT BT CT

Muamua, o masini uma e tolu ua mamanuina mo le puipuiga o le paʻu o le pefu ma pa'ū i lalo o le vaega o meafaigaluega faʻamaonia lona lua. O fa'amaumauga e fa'amaonia le pa e fa'apea: AT < BT < CT.

Tulaga Vaega	Fa'avasegaga kasa	Kasa sui	Malosi'i Fa'amumu Fa'amumu
I lalo o le Mine	I	Methane	0.280mJ
Falegaosi i fafo o le Mine	IIA	Propane	0.180mJ
	IIB	Ethylene	0.060mJ
	IIC	Hydrogen	0.019mJ

O le CT masini o loʻo faʻaalia ai se paʻu o le pefu o le pefu. Peitai, I ma le bt masini e le talafeagai mo nofoaga e manaʻomia ai tapulaʻa CT.

I se isi faaupuga, CT masini e mafai ona suia mo ma bt, ae i le ma bt masini e le mafai ona suia mo CT.