The scope of CEI 31-35 is to provide guidance on the application of IEC 61508 and IEC 61511 in the petroleum, petrochemical, and natural gas industries. The purpose of this standard is to ensure that safety instrumented systems (SIS) are designed, implemented, and operated to achieve the required functional safety.
Over-classifying a safe zone leads to unnecessary expenses for specialized equipment. Conversely, under-classifying puts lives at risk.
The scope of CEI 31-35 is to provide guidance on the application of IEC 61508 and IEC 61511 in the petroleum, petrochemical, and natural gas industries. The purpose of this standard is to ensure that safety instrumented systems (SIS) are designed, implemented, and operated to achieve the required functional safety.
Over-classifying a safe zone leads to unnecessary expenses for specialized equipment. Conversely, under-classifying puts lives at risk.