Using tobacco and open flames shouldn't be permitted in areas used for storage of oxygen or flammable gas cylinders. Never ever allow oil, grease, or other combustible substances to come into connection with oxygen or other oxidizing gasoline cylinders, valves, and techniques. Point: Storing gas cylinders indoors might be harmful https://cylinder-handling28593.thenerdsblog.com/35688056/drum-and-cylinder-handling-an-overview