Page 39 of 110 Pages
6.7 Optional Program 10: Bowie and Dick Test (PV, pre-vacuum model only)
The Bowie & Dick test program, with fixed sterilization parameters
134ºC (273º F) and 3.5 minutes, cannot be modified by the operator or
the technician.
Nominal parameters default settings
Sterilization temperature: 134ºC (273º F)
Sterilization time: 3.5 minutes.
Dry time: 2 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 phase; temperature and pressure are maintained constant at
the pre-set level 134ºC (273º F) for sterilization time 3.5 minutes.
Fast exhaust stage; steam is exhausted out of the chamber at a fast rate
until pressure decreases to ambient pressure.
Drying stage; heating of chamber followed by a vacuum break (air
inlet) to remove leftover moisture from the instruments and wraps.
If the B&D test cycle failed, the screen color is changed from purple to
yellow
If the B&D test cycle ended successfully "Test Ended" message will
display and the screen color will remain purple.
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