I'm trying to build up uncertainty budget from simple resistance measurement. DVM is 3458A and DUT is 100ohm resistor with 4-wire connections. Test current is 10mA. I'm using Fluke 5440A-7002 test leads which has a note, that thermal EMF is less than 1.3uV/celsius degree. What is the right way to calculate, how much those cables causing measurement uncertainty? I know, that 4-wire connection eliminates pretty well those thermal effects, but anyway.
Can i just calculate residual thermal resistant value, like R = 1.3uV/10mA?, Lab temperature is tightly controlled +/- 1 celsius degree window. If i can calculate, what distribution model thermal uncertainty follows. Gaussian, triangel, U-shape?