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United Kingdom, NPL (National Physical Laboratory)
Complete CMCs in Electricity and Magnetism for United Kingdom (.PDF file)
Capacitance: dielectric capacitors. Standard capacitor, 1 pF to 1E+09 pF
Relative expanded uncertainty (k = 2, level of confidence 95 %) in µF/F: 3 to 1000
Coaxial bridge
Frequency: 20 Hz to 1 MHz
Usually two or four terminal pair standard
Approved on 06 August 2013
Internal NMI service identifier: 75
Uncertainty table