Sample No. | pH | The concentration of the Binary Inhibitor (mg /L) | Time (Days) | Experimental Corrosion Rate (mm /yr) | Predicted Values | Residual Values | ||
RSM | ANN | RSM | ANN | |||||
1 | 8 | 23 | 13 | 0.32 | 0.33 | 0.33 | -0.01 | 0.01 |
2 | 5 | 23 | 3 | 0.13 | 0.33 | 0.12 | -0.20 | 0.01 |
3 | 5 | 15 | 13 | 0.58 | 0.81 | 0.58 | -0.23 | 0.00 |
4 | 6 | 19 | 17 | 0.85 | 0.74 | 0.85 | 0.11 | 0.00 |
5 | 5 | 23 | 21 | 0.98 | 0.78 | 0.99 | 0.20 | 0.01 |
6 | 6 | 26 | 17 | 0.09 | 0.33 | 0.08 | -0.24 | 0.01 |
7 | 6 | 26 | 8 | 0.05 | 0.07 | 0.07 | -0.02 | 0.02 |
8 | 4 | 26 | 17 | 0.08 | 0.33 | 0.09 | -0.25 | 0.01 |
9 | 4 | 19 | 8 | 0.69 | 0.49 | 0.70 | 0.20 | 0.01 |
10 | 7 | 23 | 13 | 0.24 | 0.33 | 0.23 | -0.09 | 0.01 |
11 | 4 | 26 | 8 | 0.29 | 0.07 | 0.28 | 0.22 | 0.01 |
12 | 6 | 19 | 8 | 0.58 | 0.49 | 0.58 | 0.09 | 0.00 |
13 | 4 | 19 | 17 | 0.81 | 0.74 | 0.81 | 0.07 | 0.00 |
14 | 3 | 23 | 13 | 0.37 | 0.33 | 0.36 | 0.04 | 0.01 |
15 | 5 | 30 | 13 | 0.04 | -0.09 | 0.04 | 0.13 | 0.00 |