Which practice is correct when storing compressed gas cylinders?

• A. Store upright on their side
• B. Store away from heat sources on their side
• C. Store upright and secured away from heat sources
• D. Keep valves open when stored

Answer: (C)

Storing compressed gas cylinders safely means keeping them upright, secured so they can’t tip or roll, and away from heat sources. This minimizes the risk of valve damage or leaks and prevents increased internal pressure from heat, which could lead to venting or a fire hazard. Keeping the cylinders upright puts the valve and pressure-relief area in a stable, accessible position, and securing them with a chain, strap, or rack prevents movement if bumped. Also, always ensure valves are closed when cylinders aren’t in use to prevent accidental release.

The other options fail because storing cylinders on their side increases the chance of valve damage, leaks, or rolling hazards; storing upright on their side still leaves them vulnerable if not secured; and keeping valves open would allow gas to escape, creating a serious safety risk.