Safety and Risk Indices

The best-known measure for safety is risk. Risk is defined as the potential for loss or the probability of a specified undesired event s occurring in a particular period of time and its consequences. An inherently safe chemical process is one that avoids hazards instead of controlling them. Heikkila (1999) developed a method for 

Total Inherent Safety Index (ISI) Chemical Inherent Safety Index (ICI) Score Process Inherent Safety Index (IPI) Score 

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