This Code applies to piping for all fluids including: (1) raw, intermediate, and finished chemicals; (2) petroleum products; (3) gas, steam, air and water; (4) fluidized solids; (5) refrigerants; and (6) cryogenic fluids. Also included is piping that interconnects pieces or stages within a packaged equipment assembly. Key changes to this revision include: �¦ Severe Cyclic Conditions �¦ MPa Allowable Stresses �¦ Expansion Joints �¦ Flange Joint Assembly �¦ Ultrasonic Examination Acceptance Criteria �¦ Category M Fluid Service Examination �¦ Leak Testing of Instrument Connections �¦ Leak Testing of Vacuum Systems �¦ Leak Testing of Insulated Systems �¦ Leak Testing of Assembled Piping