| Contamination Factor (CF) |
Contamination Degree (CDeg) |
| Class |
Indication |
Class |
Indication |
| CF<1 |
Low Contamination |
Cdeg<8 |
Low degree of contamination |
| 1< CF<3 |
Moderately contaminated |
8≤ Cdeg<16 |
Moderate degree of contamination |
| 3 <CF<6 |
Considerable contamination |
16≤ Cdeg<32 |
Considerable degree of contamination |
| 6<CF |
Very high contamination |
32≤ Cdeg |
Very High degree of contamination |
