CID A-A-59951 describes an Automated Upgradeable Oscilloscope Calibration Workstation with amplitude of up to ±200 volts DC into a 1MΑ load with an accuracy of ± 0.025% ± 25µV for oscilloscope test and calibrations. This CID is meant as a minimum requirement for an Oscilloscope Calibrator and only those manufacturers that meet or surpass the following requirements are to supply the oscilloscope calibrator per this CID.