Page 46
Operations sequence:
Heating: Steam enters the chamber and heats it up until the
sterilization temperature is reached.
During the interval of the heating stage, between 100°C and
121°C, the heating rate is kept to approximately a rise of 1
degree per minute. This will make the last stage of the
heating take approximately 21 minutes. This is to check the
durability of the bottles.
Sterilization: Sterilization temperature is maintained constant
during the sterilization time.
Cooling: Forced cooling to the required end temperature,
chamber pressure remains at approx. 300 kPa and the cooling
valve is opened.
During the interval of the cooling stage, between 121°C and
100°C the cooling rate is kept to approximately a decrease of
1 degree per minute. This will make the last stage of the
cooling take approximately 21 minutes. This is to check the
durability of the bottles.
Fast Exhaust: The steam is exhausted out of the chamber at a
fast rate until pressure decreases to ambient pressure.
Drying: N/A
Ending: The system checks that End temperature and End
pressure have been reached, and then releases the door.
5.18 Program 18: Durham
For liquids when the manufacturer recommends autoclaving at
temperatures of 121ºC (250F) for 15 minutes.
To Next Page
