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Calibration and measurement services: Electricity

BIPM Electricity Department
 Complete list of uncertainties for services offered to NMIs by the BIPM in Electricity

DC voltage. Zener voltage standard, 1.018 V
Relative expanded uncertainty (k = 2, level of confidence 95%) in nV/V: 28
Difference measurement

DC voltage. Zener voltage standard, 10 V
Relative expanded uncertainty (k = 2, level of confidence 95%) in nV/V: 28
Difference measurement

DC resistance. Fixed resistor, ohms
Relative expanded uncertainty (k = 2, level of confidence 95%) in nohms/ohms: 34
CCC bridge
Current: 50 mA; Temperature: 23 °C

DC resistance. Fixed resistor, 100 ohms
Relative expanded uncertainty (k = 2, level of confidence 95%) in nohms/ohms: 36
CCC bridge
Current: 0.5 mA; Temperature: 23 °C

DC resistance. Fixed resistor, 10 000 ohms
Relative expanded uncertainty (k = 2, level of confidence 95%) in nohms/ohms: 36
Ratio bridge
Current: 100 µA; Temperature: 23 °C

Capacitance. Standard capacitor, fused silica, two terminal-pair: 1 pF
Relative expanded uncertainty (k = 2, level of confidence 95%) in nF/F: 80
Ratio bridge
Frequency: 1592 Hz

Capacitance. Standard capacitor, fused silica, two terminal-pair: 1 pF
Relative expanded uncertainty (k = 2, level of confidence 95%) in nF/F: 100
Ratio bridge
Frequency: 1000 Hz

Capacitance. Standard capacitor, fused silica, two terminal-pair: 10 pF
Relative expanded uncertainty (k = 2, level of confidence 95%) in nF/F: 80
Ratio bridge
Frequency: 1592 Hz

Capacitance. Standard capacitor, fused silica, two terminal-pair: 10 pF
Relative expanded uncertainty (k = 2, level of confidence 95%) in nF/F: 100
Ratio bridge
Frequency: 1000 Hz

Capacitance. Standard capacitor, fused silica, two terminal-pair: 100 pF
Relative expanded uncertainty (k = 2, level of confidence 95%) in nF/F: 80
Ratio bridge
Frequency: 1592 Hz

Capacitance. Standard capacitor, fused silica, two terminal-pair: 100 pF
Relative expanded uncertainty (k = 2, level of confidence 95%) in nF/F: 100
Ratio bridge
Frequency: 1000 Hz


Traceability to the SI through the BIPM
Subject area:
What is traceability?
BIPM policy on stating uncertainties
Summary charts: Technical services per Member State
Chemistry
Electricity
Ionizing Radiation
Mass
Time
Related articles:
Comparisons piloted by the BIPM
BIPM calibration and measurement services
BIPM work programme
Joint BIPM, OIML, ILAC and ISO declaration on metrological traceability