SIS PFD – Safety Instrumented System
The probability of Failure on Demand (PFD) calculation is carried out as part of the Safety Instrumented System (SIS) design after the LOPA/PHA study.
The probability of Failure on Demand (PFD) calculation is carried out as part of the Safety Instrumented System (SIS) design after the LOPA/PHA study.
While the term “probability” may evoke images of imprecision, probability is in fact an exact mathematical concept: the ratio a