Levels | Coefficients | Definitions |
Minor consequences | 1 | - No personal injury; - Discomfort at work; - Destruction of property that does not jeopardize the integrity of the system. |
Significant consequences | 2 | - Slight injury or limited intoxication of individuals by a low-toxic product; - Contamination of the order of the permissible annual dose; - Destruction of equipment resulting in system shutdown; - Exposure to high level nuisances (noise, vibration, etc.). |
Critical or serious consequences | 3 | - One or more individuals injured or intoxication limited by a toxic product; - Contamination by a dose resulting in medical treatment; - Pollution of the environment by a weakly toxic product or a small quantity of a toxic product; - Irreversible loss of important information. |
Internal catastrophic consequences | 4 | - Several people were seriously injured or dead; - Environmental pollution by significant or repeated emission of a very toxic product; - Complete destruction of the system. |
External catastrophic consequences | 5 | Same as above except that the environmental impacts of the system are very significant. |