
The term "industrial gases" refers to the gaseous materials that are manufactured for the use in industries. Some of these industrial gases are nitrogen, carbon dioxide, oxygen, argon, hydrogen, acetylene, and helium. A wide variety of these industrial gases and mixtures is available in gas cylinders. Few examples of industrial gases that are delivered in gas cylinders are medical oxygen, balloon helium, welding gases and welding equipment, dispensing gases for beer kegs, and LPG. There are also a wide variety of hand-carried small gas containers that are used to deliver industrial gases. These small gas containers include cylinders, bottles, cartridges, capsules, or canisters that are used to supply LPG, propane, butane, nitrous oxide, or carbon dioxide. Other examples are whippets, campingaz, powerlets, and sodastream.