The document discusses impact testing of LPG storage tanks. LPG is a colorless gas consisting of propane and butane that is given an odor for leak detection purposes. LPG tanks are manufactured through a process that includes designing, manufacturing, installation of safety equipment, and maintenance. The manufacturing process tests the durability and strength of tanks through plate testing, impact testing, hydrotesting, and radiography testing. More details on impact testing of LPG storage tanks can be found by visiting the provided website.