ABC of Safety in the Biological Sciences




  P (Probability) C (Consequences)
10 Certain Fatality
9 Near certain Permanent total incapacity
8 High probability Severe permanent partial incapacity
7 Better than even probability Moderate permanent incapacity
6 Even probability Slight permanent partial incapacity
5 Less than even probability Injury with full recovery after 21 days
4 Probable Injury with full recovery under 21 days
3 Low frequency Minor injury with minimal lost time
2 Extreme low frequency Minor injury without lost time
1 Improbable No recognisable injury

Table 8: A scale for probability and consequences


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