Rbi is focused on a systematic determination of

Risk-Based Inspection (RBI) produces risk values that are primarily used for comparison and ranking. The process determines which equipment poses a higher risk relative to other equipment within a facility. This ranking allows for the strategic allocation of inspection resources to the highest-risk items. The inputs to the RBI analysis (e.g., damage rates, failure consequences) have inherent uncertainties, making the output a relative measure for prioritization rather than an absolute, precise value of risk.

B. Absolute risks: RBI calculations involve estimations and assumptions, preventing the determination of a precise, absolute risk value.
C. Comparable risks: While risks are compared, "relative risks" is the more technically accurate term used to describe the output of an RBI analysis for prioritization.
D. Total risks: RBI specifically focuses on the risk of pressure boundary containment loss, not the total operational or financial risk of a facility.

1. API Recommended Practice 580, "Risk-Based Inspection," Third Edition, February 2016, Section 11.1: "The primary work product of an RBI analysis is an inspection plan for each equipment item analyzed. The plan should rank the equipment based on risk..."

2. API Recommended Practice 580, "Risk-Based Inspection," Third Edition, February 2016, Section 6.2: "The risk associated with each equipment item is used to prioritize inspection and to develop an appropriate inspection plan."