First Midwest Bank Of Poplar Bluff's routing number (the leftmost number on the bottom of a check) is 81519510. Sometimes, banks have multiple routing numbers for different branches or uses. Please make sure this is the correct routing number for your branch!
The unit of measurement for conductivity is expressed in either microSiemens (uS/cm) or micromhos (umho/cm) which is the reciprocal of the unit of resistance, the ohm. The prefix micro means that it is measured in millionths of a mho. MicroSiemens and micromhos are equivalent units.
The higher the conductance the better the component is at conducting. Conductance is just the inverse of resistance. The symbol for conductance is G (heaven knows why) and the unit of conductance is the siemens, S, named after the 19th century German engineer and industrialist Ernst Werner von Siemens. It used to be called the mho, which is just ohm written backwards.