Sterilization Parameters: steam_autoclave
Sterilization process parameters for medical devices, pharmaceutical equipment, and healthcare facilities. Covers ethylene oxide (EtO standard/low-temp/hospital cartridge), gamma irradiation (VDmax15, VDmax25, substantiation 25 kGy, high dose 35 kGy), electron beam, X-ray, steam autoclave (gravity 121°C, prevacuum 134°C, liquid cycle, terminal, flash, prion), hydrogen peroxide plasma/vapor (VPHP, VHP, accelerated), dry heat (150°C/170°C/HVHA), low-temperature steam formaldehyde (LTSF), ozone, UV-C, and cold plasma. Parameters include temperature, exposure time, radiation dose, gas concentration, relative humidity, sterility assurance level (SAL), material compatibility, and validation standard references.
| sterilization method | process variant | cycle pressure condition | exposure time max min (min) | exposure time min min (min) | exposure time typical min (min) | material compatibility notes | method description | notes | temperature max C (°C) | temperature min C (°C) | temperature typical C (°C) | validation standard |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| steam_autoclave | flash_sterilization_132C | 1e-6 | 10 | 3 | 3 | 30_psi | Flash sterilization (immediate use) — unwrapped instruments at 132°C for immediate use | FDA 21 CFR 820; AAMI ST79:2017 | 135 | 132 | 134 | Emergency use only for dropped instrument between surgical cases; unwrapped single item; no storage post-processing; discouraged for implants; replaced by standard prevacuum cycles when possible |
| steam_autoclave | gravity_121C | 1e-6 | 60 | 15 | 30 | 15_psi_above_atmospheric | Steam sterilization — gravity displacement cycle at 121°C (250°F) | FDA 21 CFR 880.6860; EN 13060; AAMI ST79 | 123 | 121 | 121 | Most common; suited for heat/moisture stable instruments, wrapped/unwrapped metal, liquids; not for heat-sensitive plastics; not for moisture-sensitive electronics or implant surfaces |
| steam_autoclave | liquid_cycle_121C | 1e-6 | 60 | 20 | 30 | 15_psi | Steam sterilization — liquid cycle for aqueous solutions in sealed containers | USP <1229>; EU GMP Annex 1 | 121 | 121 | 121 | Aqueous solutions, media, buffers; sealed bottles must have vented caps or autoclave-safe closures; do not autoclave flammable organic solvents; watch for superheating |
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