Cleaning PVC Esophageal and Anorectal Catheters Disinfecting the Hydraulic Capillary Infusion System Daily Maintenance of Hydraulic Capillary Infusion System Gas Sterilization of PVC Catheters N2 Tank Replacement and 12 hr High and Low Pressure Testing   Gas Sterilization of PVC Catheters Temperature: 130 degrees F. (+or- 5 degrees F.)   140 degrees F. very highest temperature. Duration: 2 to 3 hours Gas: Ethylene Oxide Aeration: 12 hours.     Cleaning agents to avoid Freon 11 and Freon TF Alcohol may cause premature crazing or cracking of the Lexan hubs. Avoid all organic solvents, such as acetone, tetrahydrofuron etc.