An assembly of equipment, such as storage containers, pressure regulators, pressure relief devices, vaporizers, manifolds, and interconnecting piping, that terminates at the point where the system gas at service pressure first enters the facility supply line. Bulk systems contain more than 566,335 L (20,000 ft3) of oxygen or 1452 kg (3200 lb) of nitrous oxide including unconnected reserves on the site.
