Industrial gases are the gaseous materials that are manufactured for use in industry. The principal gases provided are nitrogen, oxygen, carbon dioxide, argon, hydrogen, helium and acetylene, although many other gases and mixtures are also available in gas cylinders.
Common examples are nitrogen, helium, hydrogen, oxygen, and carbon dioxide cylinders. Low-pressure cylinders are typically fatter and lighter than high pressure; they have thin-walled, welded seams, and can withstand up to 500 psi.
How is LPG Stored? LPG is stored in pressure vessels. As such, it is almost always stored in its liquid form. These can range from small camping cannisters to BBQ gas bottles to larger gas cylinders and much larger LPG tanks or bullets.