Aligned with Saudi Aramco SSMS Guidelines (Appendix 2)
| # | Sequence of Basic Job Steps | Potential Hazards | Recommended Safe Job Procedures / Controls | Action By |
|---|---|---|---|---|
| 1 |
Use this matrix to calculate Residual Risk in the table above ($Likelihood \times Severity$).
| Severity (S) ↓ / Likelihood (L) → | 1 (Rare) | 2 (Unlikely) | 3 (Possible) | 4 (Likely) | 5 (Frequent) |
|---|---|---|---|---|---|
| 5 (Catastrophic) | 5 (M) | 10 (H) | 15 (H) | 20 (VH) | 25 (VH) |
| 4 (Major) | 4 (L) | 8 (M) | 12 (H) | 16 (H) | 20 (VH) |
| 3 (Moderate) | 3 (L) | 6 (M) | 9 (M) | 12 (H) | 15 (H) |
| 2 (Minor) | 2 (L) | 4 (L) | 6 (M) | 8 (M) | 10 (H) |
| 1 (Slight) | 1 (L) | 2 (L) | 3 (L) | 4 (L) | 5 (M) |