• Use an autoclave (steam) to achieve a standard gravity steam sterilization cycle (30 min, 15 psi, 121 DEG C) or a high speed steam sterilization cycle (15 min, 30 psi, 132 DEG C). Note that organic silicone materials are more difficult to heat than thermoplastic plastics because they have an adiabatic nature and may therefore require more time to heat up.
• Gamma radiation, the dose of 2.5 Mrad (25 kGy) does not have a negative effect on mechanical performance (more doses may lead to some changes).
• Ethylene oxide (ETO) gives sufficient time to completely remove the left residual hexane gas. The residual levels of ethylene oxide after sterilization of different hoses have been investigated. Compared with PVC or polyester polyurethane tubings, silicone absorbs less ethylene oxide and can be released more quickly.