T=30°C T=40°C T=50°C T=60°C
A0 -324738.4 -606940.27 685955.22 -969697.62
A1 -1929226.5 -3159694.2 2861343.1 -4007621.1
A2 -3921027.8 -4853810.7 2726160.3 -5272665.8
A3 -2569524.4 565890.18 -4196964.5 -2406942.1
A4 1127999 7537255.9 -9973877.8 -3117353.5
A5 1236270.4 4622348.9 -6039924.7 -7950928.6
A6 -916203.12 -1589693.4 -160087.31 -6996808.8
A7 -777951.17 -1550488 647780.06 -1996296.7
Table 4: Coefficient of the polynomial equation.