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.