API RP 581 - 3rd Ed.2016 - Add.2-2020 - Risk-Based Inspection Methodology

1-32 API RECOMMENDED PRACTICE 581
Risk
Total Risk Without
Inspection at the
Risk Target Date
Risk Target
Total Risk with
Inspection at the
Risk Target Date
Installation
Date
RBI & Risk Target
Date, Inspection
Performed
Plan Date
time
Figure 4.7—Case 2: Inspection Planning when the Risk Target Has
Been Exceeded at or Prior to the RBI Date