Kev tawg-pov thawj teeb tau muab faib ua ob peb theem

Kev tawg-pov thawj teeb pom kev zoo tau muab faib ua peb pawg: IIA, IIB, thiab IIC.

Class IIA

Suitable for places with gasoline-like substances, xws li chaw nres tsheb roj. Cov roj sawv cev rau pawg no yog propane.

Class IIB

Used in general factories where hazardous gases are present. Ethylene is the representative gas for this classification.

Class IIC

Designed for factories exposed to hydrogen, acetylene, or carbon disulfide.