Profile of a Type B sterilization cycle
LEGEND
PHE
Pre-heating (this is not considered
a part of the cycle)
PV1 - PV3
Vacuum pulse (removal of air from
the sterilizer chamber/load)
PP1 - PP2 Pressure pulse (steam generation)
PPH
Rise to the sterilization phase
PR
Process (sterilization phase)
DV
Vacuum drying
SEP
Short phase to clean the circuit
from used water
LEV
Levelling
END
End of the cycle
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All type B sterilization cycles feature the same basic pressure profile as shown in the graph below.
The duration and the temperature sterilization phase differ between the various cycles.
Pressure
Fractionated pre-vacuum
Pulsed vacuum drying
LEV
SEP
END
PV1
PV2
PV3
PP1
PP2
PPH
PR
DV
Time