Opportunities and Challenges in Safety Integrity Levels.
With the initial phases of safety in asset integrity management systems like HAZOP (hazard and operability study) and SIL (safety integrity level) assignments completed and most of the engineering documentation available, the next important activity in the safety lifecycle is SIL verification. There is a common perception that the SIL verification is a straightforward activity computing reliability data and checking that target SIL is met.
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