Method for performing a pore size test on a mesh wick

A method for performing a pore size test on a mesh wick, wherein the mesh wick comprises a sealed end and an open end, the method comprising:

• submerging the mesh wick in a liquid;
• inserting a portion of a pore size testing device into the open end of the mesh wick;
• supplying a first gas to the pore size testing device to cause an expandable bladder of the pore size testing device to expand, wherein the expandable bladder is positioned on the portion of the pore size testing device, and wherein the expanding of the expandable bladder forms a seal between the mesh wick and the pore size testing device;
• supplying a second gas through the pore size testing device into an internal cavity in the mesh wick, wherein the second gas pushes the liquid out of the internal cavity and through the mesh wick;
• determining a pressure at which bubbles of the second gas form outside of the mesh wick;
• determining a pore size of the mesh wick based on the pressure;
• removing the first gas from the pore size testing device to cause the expandable bladder of the pore size testing device to collapse, wherein the collapsing of the expandable bladder removes the seal between the mesh wick and the pore size testing device;
• and
• removing the portion of the pore size testing device from the open end of the mesh wick.