MI

Module from the Process Safety Management Curriculum curriculum.

Module 5 - Mechanical Integrity (Element 8) · Learning Objectives · 1. Identify covered equipment: PVs, piping, tanks, relief devices, controls · 2. Apply API 510/570/653 for vessel/piping/tank inspection cycles · 3. Implement RBI per API 580/581 for extended intervals (when supported) · 4. Control inspection findings and drive actions to closure · 5. Test safety instrumented functions (SIS) per procedure at required frequency · MI Inspection Cycles

Equipment	Standard	External	Internal / On-Stream	NDE Methods	Notes
Pressure Vessels	API 510	5 yr	Half RL or 10 yr	VT, UT, WFMT	RBI up to 1.5x
Piping Class 1	API 570	5 yr	Half RL or 5 yr	UT, RT	Most critical
Piping Class 2	API 570	5 yr	Half RL or 10 yr	UT	Common
Piping Class 3	API 570	10 yr	Half RL or 10 yr	UT	Utility
Storage Tanks	API 653	5 yr ext	10 yr int	MFL floor, UT shell	Also API 653 monthly
PSVs	API 510/576	Function test yearly	Bench 3-5 yr	Leak + pop test	Sized per scenario
Safety Instrumented Functions	IEC 61511	Per SIL	Per testing interval	Logic + final elements	Validation + doc

Source: Process_Safety_Management_Curriculum_v1.xlsx · Sheet: MI

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