Table 2: Fouling severity assignment table [4].

FS

01.001.001.00
10.960.990.95
20.920.980.90
30.880.970.85
40.840.960.80
50.800.950.75
60.760.940.70
70.720.930.65
80.680.920.60
90.640.910.55
100.600.900.50