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4.4
Program 4 - Unwrapped delicate instruments
For unwrapped delicate instruments, when the manufacturer recommends
autoclaving at temperatures of 121
C (250
F) with a drying stage.
Nominal parameters default settings
Sterilization temperature: 121
C (250
F)
Sterilization time : 20 minutes
Operations sequence:
Air-removal stage; vacuum pulses are performed.
Heating stage: steam is inserted into the chamber until the sterilization
temperature is reached.
Sterilization stage; temperature and pressure are maintained constant at
the pre-set level for the sterilization time.
Slow exhaust phase; steam is slowly exhausted from the chamber by
pulses of the exhaust valve, until the chamber pressure equals
atmospheric pressure.
Note:
The sterility of instruments processed in unwrapped cycles cannot be
maintained if exposed to non-sterile environment.