Miscellany

The National Bureau of Standards has established standards and equipment for testing and certifying small fixed standards of capacitance ranging in value from 100 down to 0.001 micromicrofarads. For values below 0.1 micromicrofarad, a new type of primary standard capacitor has been designed, utilizing a principle which makes practical the construction of units having a capacitance as small as may be desired. This work was under the direction of Dr. Charles Moon.