Which hazard characteristic applies to Class 2 gases?

• A. A container may rupture violently under pressure.
• B. They are always nonflammable.
• C. They are safe to handle without PPE.
• D. They do not cause frostbite

Answer: (A)

Class 2 gases are stored under pressure, including compressed, liquefied, and cryogenic forms. The primary hazard is the energy stored in the container; if the vessel is damaged, overheated, or over-pressurized, it can rupture violently, releasing gas and possibly sending fragments or creating a dangerous blast. This makes the container’s integrity and proper handling crucial.

Some options aren’t correct because many Class 2 gases are not nonflammable—flammable and toxic gases exist in this class. Handling these cylinders safely requires appropriate PPE and equipment, not casual handling. Frostbite can occur with cryogenic gases due to their extreme cold, so saying they do not cause frostbite isn’t accurate for all Class 2 gases.