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. 2010 Nov;5(11):2004–2017. doi: 10.2215/CJN.01740210

Table 3.

Risk chart example

Probability Levels Severity Levels
Negligible Minor Serious Critical Catastrophic
Frequent ALARP Unacceptable Unacceptable Unacceptable Unacceptable
Probable ALARP ALARP Unacceptable Unacceptable Unacceptable
Occasional Acceptable ALARP ALARP Unacceptable Unacceptable
Remote Acceptable ALARP ALARP ALARP Unacceptable
Improbable Acceptable Acceptable Acceptable ALARP ALARP

ALARP, as low as reasonably practicable.