Relative humidity (%) | σDC | εs − ε∞ | τ | β |
100 | 4.0 × 10−3 | 2.0 × 103 | 1.0 × 10−6 | 0.40 |
81 | 5.0 × 10−5 | 9.1 × 102 | 1.9 × 10−5 | 0.60 |
53 | 1.0 × 10−5 | 8.7 × 102 | 8.1 × 10−5 | 0.63 |