The SR 1010-10K Resistance Transfer Standard is used to make accurate resistance transfers. The device contains 12 10K resistors connected in series by specially designed true four-terminal junctions. Four-terminal measurements of series combinations will agree with the sums of individual four-terminal measurements because of these junctions. Accurate parallel connections can also be made with the networks (sold separately) and the shorting bars (sold separately) connected to these junctions. The device can be connected to give three decade values: 10 resistors in series (10R), the same 10 resistors in parallel (R/10), and 9 of the 10 resistors in series-parallel (R). Part-per-million resistance transfers can be made because the series value is exactly egual to 100 times the parallel value to better than 1 ppm.
