The average resistance of the samples was determined to be 0.15292 Ω for copper wires with a mass of 1 gram of uniform cross section and 1 meter in length at 20 °C.
Germany proposed a slight modification of this value to "0.15328 ohm (meter, gram) at 20 °C", this being equivalent to a conductivity of exactly 58×106 S/m at 20 °C.
A measurement of the electric conductivity of aluminum alloys can be used to verify that a heat treatment process has been done correctly.
For example a component made of "7075" alloy which was correctly treated with the process "T73" to gain resistance to stress corrosion cracking will fall in the range of 38.0 to 43.0 % IACS.
[3] The acceptance criteria for electrical conductivity of finished or semi-finished parts of wrought aluminum alloys are contained in SAE International specification AMS2658 Hardness and Conductivity Inspection of Wrought Aluminum Alloy Parts.