| Group | Characteristic Strength = So | Weibull Modulus =m | Correlation r-Coefficient |
|---|---|---|---|
| eS-320 grit | 20.885 | 1.940 | 0.984 |
| eS-800 grit | 18.858 | 3.357 | 0.969 |
| eS-1200 grit | 18.310 | 2.420 | 0.936 |
| eS-2400 grit | 21.652 | 4.713 | 0.964 |
| Z100-320 grit | 27.805 | 2.085 | 0.932 |
| Z100-800 grit | 24.580 | 2.787 | 0.959 |
| Z100-1200 grit | 18.310 | 2.420 | 0.936 |
| Z100-2400 grit | 20.752 | 2.632 | 0.973 |