The Strange–Rahman–Smith equation is used in the cryoporometry method of measuring porosity.
NMR cryoporometry [1][2][3] is a recent technique for measuring total porosity and pore size distributions.
NMRC is based on two equations: the Gibbs–Thomson equation, which maps the melting point depression to pore size, and the Strange–Rahman–Smith equation, [1] which maps the melted signal amplitude at a particular temperature to pore volume.
If the pores of the porous material are filled with a liquid, then the incremental volume of the pores
may be obtained from the increase in melted liquid volume for an increase of temperature between
is the Gibbs–Thomson coefficient for the liquid in the pores.