In the Oil & Gas business it is important to ensure the design of high risk process adequate with sufficient safety barrier. One of the most challenging application of Process Safety IPF Study and Verification is to balance between safeguard adequacies versus cost optimization.

PETRONAS has taken a stand that SAFETY is our upmost priority and with that process safety design has been our main priority. PETRONAS have many operating plant units in Malaysia as well as in other countries. Measures are taken in ensuring proper Functional Safety Risk Analysis are being carried out during project development stage and during plant operational phase.

This paper intends to highlight PETRONAS best practice in Process Safety SIL Study and Verification. It also discussed measures taken to resolve issues faced by O&M in ensuring SIL requirement is being met. In addition, initiatives within PETRONAS in incorporating IEC 61508 & IEC 61511 revision changes.

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