Standard Cells and Electronic Voltage References
The value of electromotive force of a saturated standard cell can be measured with best measurement uncertainty only if the cell is of high quality and is contained in a temperature regulated enclosure
Cells without temperature control will be calibrated at a nominal ambient temperature of 23 ¢J.
Electronic voltage reference standards submitted for calibration should have a nominal voltage of 1 V, 1.018 V or 10 V. Additional uncertainty will be added for other values of emf.
Calibration charges
| Fee in HK$ | |
|---|---|
| Measurement of emf of a saturated standard cell. | $2890 |
| Measurement of emf of each additional standard cell, in the same enclosure. | $950 |
| Measurement of emf of an electronic voltage reference standard (at one emf). | $2890 |
| Measurement of emf of each additional voltage, from the same reference standard, of same nominal value. | $950 |
