6. Mistakes to avoid
6.1 Don't confuse efficiency with probability of failure
If an MMR is not effective against a scenario, it cannot be valued as an MMR. Taking it into account in the ESD by associating a probability of failure is not correct and leads to an under-assessment of the risk. The probability of failure of an MMR can only be taken into account after verification of its effectiveness in relation to the scenario studied.
SCROLL TO TOP6.2 Don't confuse the duration of the leak with the response time of an MMR designed to isolate a leak.
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Bibliography
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Bibliography
Olivier Iddir – Principle for assessing the probability of failure of risk control measures. [SE 4 057] Safety and risk management (2009).
Website
www.ineris.fr/badoris Risk management: this site presents fact sheets describing risk management measures (RMMs) frequently encountered in industry.
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