What is the proper storage requirement for propane cylinders when not in use?

The proper storage requirement for propane cylinders when not in use is that they must be stored in an upright position in a well-ventilated area. Storing propane cylinders upright is essential because it allows the safety relief valve to function correctly, ensuring that any pressure build-up is released safely. When stored upright, the valve remains above the liquid propane, reducing the risk of liquid propane leaking and potentially causing hazardous situations like fires or explosions.

Additionally, placing the cylinders in a well-ventilated area is crucial. This helps disperse any propane gas that may escape, minimizing the risk of accumulation and thereby reducing the likelihood of a fire hazard. Proper ventilation also helps prevent the build-up of flammable concentrations of gas in confined spaces.

Understanding these storage requirements is vital for ensuring safety during both the use of propane cylinders and when they are not in active use.