LPG tanks can be used in the form of LPG cylinders, LPG bulk tanks, Underground LPG storage tanks, etc. The capacity of LPG storage tanks can range from a few hundred liters to several thousand liters, depending on the specific application and the amount of LPG needed. LPG storage tanks come in various sizes, from small cylinders used for portable stoves and heaters to large tanks used for industrial purposes, such as powering forklifts and other heavy equipment. Codes and Standards for LPG Storage Tanks.Work Flow of LPG Storage Tank Basic Design.The Instrumentation on LPG Storage Tanks.