How should oxygen and acetylene tanks be stored when not in use?

• A. Not stored near oil and grease, kept clear and closed when not in use
• B. Stored near oil and grease, kept clear and closed when not in use
• C. In a damp location with valves open
• D. In direct sunlight with exposed valves

Answer: (A)

Oxygen and acetylene cylinders must be stored away from oil and grease and with valves closed when not in use. Oxygen can greatly accelerate any fire, and oil or grease on a cylinder surface creates an ignition risk in the presence of high-pressure gas. Acetylene is especially sensitive to contamination and heat, so keeping contaminants out and not letting the gas escape helps prevent dangerous reactions. Closing the valves stops leaks and minimizes the chance of accidental gas release. For safety, store cylinders in a well-ventilated area, secured upright, away from heat sources and direct sunlight, and with protective caps in place when not in use. This combination reduces ignition risk and helps prevent gas leaks, which is why it’s the proper storage practice.