Apparent facial tension (De Nouy ring method)
Input(s)
g: Acceleration of Gravity \(\left(980 \mathrm{~cm} / \mathrm{s}^{2}\right)\)
\(\mathrm{m}\): Measured Weight \((\mathrm{g})\)
1: Perimeter of the Ring \((\mathrm{cm})\)
Output(s)
\(S\): Apparent Facial Tension \((\mathrm{dyn} / \mathrm{cm})\)
Formula(s)
\[
\mathrm{S}=\frac{\mathrm{m} \cdot \mathrm{g}}{2 \cdot \mathrm{l}}
\]
Reference(s)
Mihcakan, I.M., Alkan, K.H., Ugur, Z., Petroleum and Natural Gas Laboratory, Course Notes, I-Fluid Properties, ITU, Petroleum and Natural Gas Engineering, Istanbul, Turkey, 2001. Page: 4-3.