Temperature T , in °C factor A factor B , in MPa 40 0.0002 19.3 40 0.0008 81.4 40 0.001 103 40 0.002 110 40 0.006 124 40 0.04 138 95 0.0002 19.3 95 0.0008 81.4 95 0.00092 94.5 95 0.005 110 95 0.015 117 95 0.04 124 205 0.00025 23.6 205 0.0005 48.3 205 0.00085 82.7 205 0.004 96.5 205 0.025 110 315 0.00025 23.6 315 0.0005 48.3 315 0.000765 74.5 315 0.002 82.7 315 0.01 96.5 315 0.05 103 540 0.00027 24.1 540 0.0007 62.1 540 0.0015 68.9 540 0.0065 82.7 540 0.03 89.6