Research Article
Quantitative Risk Evaluation Model of the Multilevel Complex Structure Hierarchical System in the Petrochemical Industry
Table 3
A scale reference table of the
.
| Frequency description of the OF | Quantitative interpretation of the OF | Quantitative scale score |
| Very high | ≥1/2 | 10 | - | 1/3 | 9 | High | 1/8 | 8 | - | 1/20 | 7 | Moderate | 1/80 | 6 | - | 1/400 | 5 | - | 1/2000 | 4 | Low | 1/15,000 | 3 | - | 1/150,000 | 2 | Very low | 1/1,500,000 | 1 |
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