| 702 / | HD | DATA PROCESSING: MEASURING, CALIBRATING, OR TESTING |
| * | DD | APPLICATIONS (364/400) {1} |
| FOR 103 | DF | .~ Electrical/electronic engineering (364/480) {1} |
| FOR 104 | ![]() | .~.~ Measuring or testing (364/481) {5} |
| FOR 105 | DF | .~.~.~> Impedance (364/482) |
| FOR 106 | DF | .~.~.~> Voltage, current, or power (364/483) |
| FOR 107 | DF | .~.~.~> Frequency (364/484) {1} |
| FOR 109 | DF | .~.~.~> Pulse (364/486) |
| FOR 110 | DF | .~.~.~> Waveform (364/487) |