What class do gases fall under among hazardous materials?

Gases fall under Class 2 of hazardous materials. This classification encompasses compressed gases, including flammable gases, non-flammable gases, and toxic gases. Each of these categories poses specific risks, such as explosiveness, health hazards, or asphyxiation.

Class 1 refers to explosive materials, Class 3 pertains to flammable liquids, and Class 4 encompasses flammable solids, spontaneous combustible materials, and dangerous when wet substances. These classifications are crucial for ensuring safety in transport, handling, and storage of hazardous materials, as they guide the regulations and precautions needed to manage the associated risks.