Criticality Matrix Standards

A Criticality Matrix Standard defines the company’s required criticality matrix/matrixes' per Criticality Risk Element i.e. Personnel Safety, Environmental Spills, Production Losses etc. Where each Criticality Element will require:

Thus forming the required Criticality Matrix by multiplying the Severity Rating by the Probability Rating. An equipment criticality based on equipment failure and its resulting severity and probability occurrence.

The table below shows an example Criticality Matrix given the Risk to Personnel Injury.

Personnel Injury Failure Probability Frequency
Severity > 5 years 5 Years 1 Year 6 Months < 14 days
Fatality 75 150 225 300 375
Invalidity 25 50 75 100 125
LTI (Loss Time Injury) 10 20 30 40 50
Medical Treatment 5 10 15 20 25
First Aid 1 2 3 4 5

The registration of the Criticality Matrix and where the Master resides is dependent on which application is used to run your company’s RCM Analysis. Either: