Ultra-high stability. The continuously improving accuracy of capacitor calibrations by NIST brings a better knowledge of capacitance to standards laboratories - provided, of course, the laboratories have adequate reference standards. The 1408 Reference Standard Capacitors, with their high stability, are suitable for calibration in parts in 107. The 1616 Precision Capacitance Bridge is highly recommended for accurate calibration of a wide range of working standards from such a reference.
This unit includes two standards, 10 pF and 100 pF, plus a self-contained air bath whose temperature is held constant to within 0.01 per year to assure the utmost stability of the standards. Since ti carries its own environment, it is well adapted for use in laboratories without an oil bath or closely-controlled ambient temperature or in portable laboratories and calibration centers. The air bath operates from 12 volts so that it is an easy matter to transport it under power at all times.
