Temperature T , in °C factor A factor B , in MPa 40 0.00001 0.91 40 0.000523 49.7 40 0.0007 53.2 40 0.001 58.6 40 0.002 68.1 40 0.0025 71 40 0.003 73.8 40 0.005 80 40 0.006 82 40 0.007 83.4 40 0.008 84.1 40 0.01 86.2 40 0.02 89.6 40 0.025 91 40 0.04 91.7 40 0.1 91.7 95 0.00001 0.91 95 0.000468 44.3 95 0.0006 46.7 95 0.0009 51.4 95 0.001 52.9 95 0.0015 57.5 95 0.002 60.7 95 0.003 65.5 95 0.004 68.6 95 0.005 71 95 0.007 73.8 95 0.01 76.5 95 0.015 79.3 95 0.025 81.4 95 0.04 82.7 95 0.1 82.7 205 0.00001 0.91 205 0.000423 40.1 205 0.0007 45 205 0.001 49.1 205 0.0015 53.5 205 0.0025 58.9 205 0.003 60.8 205 0.004 64 205 0.006 67.8 205 0.007 68.9 205 0.009 71 205 0.01 71.7 205 0.015 73.8 205 0.02 75.8 205 0.03 77.2 205 0.1 77.2 315 0.00001 0.841 315 0.000437 38.7 315 0.0005 39.6 315 0.001 46.5 315 0.002 53.5 315 0.003 58.1 315 0.004 60.5 315 0.006 64.6 315 0.008 66.7 315 0.01 68.5 315 0.015 71 315 0.02 72.4 315 0.03 73.8 315 0.1 73.8 425 0.00001 0.758 425 0.0005 39.6 425 0.001 46.5 425 0.002 53.5 425 0.003 58.1 425 0.004 60.5 425 0.006 64.6 425 0.008 66.7 425 0.01 68.5 425 0.015 71 425 0.02 72.4 425 0.03 73.8 425 0.1 73.8 480 0.00001 0.688 480 0.000528 39 480 0.001 45.6 480 0.002 53.3 480 0.003 58.1 480 0.004 60.5 480 0.006 64.6 480 0.008 66.4 480 0.01 68.5 480 0.015 71 480 0.02 72.4 480 0.03 73.8 480 0.1 73.8