standard surface factor calculator

enter the value and click "calculate", the calculation result will be displayed.

`SSF=6/s × ( W_1/D_1 + W_2/D_2 + W_3/D_3 + W_4/D_4 )`
ssf = standard surface factor
s = specific gravity of material
w = fractional weight of material
d = average diameter of material

enter a value:

material specific gravity (s):
weight w1
diameter d1:
weight w2:
diameter d2:
weight w3:
diameter d3:
weight w4:
diameter d4:

calculation result:

standard surface factor (ssf):
standard surface factor calculator

usage example
input data: material specific gravity is 0.8; weight w1 is 0.5; diameter d1 is 2; weight w2 is 3; diameter d2 is 4; weight w3 is 5; diameter d3 is 5; weight w4 is 7; diameter d4 is 9, click " calculation" displays the results.

output result: the standard surface area coefficient ssf is 7.5.
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