Thermophysical Properties Research Laboratory, Inc.
Phone : 765-463-1581
Electrical Resistivity

Electrical resistivity (also known as specific electrical resistance or volume resistivity) is a measure of how strongly a material opposes the flow of electric current.

TPRL, Inc. has three methods of measuring the electrical resistivity of a material: the multi-property apparatus, the Kohlrausch apparatus, and the four-probe electrical resistivity apparatus.

For solids, the multi-property apparatus or the the Kohlrausch apparatus can be used. The Kohlrausch apparatus operates over a temperature range of liquid nitrogen to 600°C. The multi-property apparatus is used for higher temperatures.

The four-probe electrical resistivity apparatus is used for either solids or liquids over a temperature range of room temperature to 1100°C.

Still not sure what is the best testing method for your material? Use our Testing Method Selector Tool to help you decide.

Thermophysical Properties Measured

Thermal Conductivity

Thermal Diffusivity

Specific Heat

Thermal Expansion

Electrical Resistivity


Thermal Gravimetric Analysis & Simultaneous Thermal Analysis


ASTM Methods

Sample Sizes & Definitions

Test Selector Tool

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3080 Kent Avenue
West Lafayette, IN 47906
Last updated 12/22/2017