Thermal Conductivity and Thermal Resistance Calculator - Thermtest
Water Specialties, Inc. - Wonderful water quality conversion chart from our website. Clearly shows the relationship between resistivity, conductivity, total disolved solids, grains per gallon, and possible pH. | Facebook
Conductivity to Resistivity Calculator
Day 59: Resistivity, Conductivity, and Resistance - Physics Blog of General Awesomeness (BOGA)