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Tech Note 1458|NIST Measurement Service for DC Standard Resistors



Randolph Elmquist, Dean G. Jarrett, George R. Jones Jr., Marlin E. Kraft, Scott H. Shields, Ronald F. Dziuba


At the National Institute of Standards and Technology (NIST), the U.S. representation of the ohm is based on the quantum Hall effect, and it is maintained and disseminated at various resistance levels by working reference groups of standards. This document describes the measurement systems and procedures used to calibrate standard resistors and current shunts of nominal decade values in the resistance range from 10E-5 Ω to 10E12 Ω. Resistance scaling techniques used to assign values to the working standards are discussed. Also included is an assessment of the calibration uncertainties at each resistance level.
Technical Note (NIST TN) - 1458
Report Number


Calibration, Electrical resistance, Quantum Hall effect, Resistance bridge, Resistance ratio, Uncertainty


Elmquist, R. , Jarrett, D. , Jones Jr., G. , Kraft, M. , Shields, S. and Dziuba, R. (2004), Tech Note 1458|NIST Measurement Service for DC Standard Resistors, Technical Note (NIST TN), National Institute of Standards and Technology, Gaithersburg, MD, [online], (Accessed July 12, 2024)


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Created March 7, 2004, Updated October 12, 2021