| 702 / | HD | DATA PROCESSING: MEASURING, CALIBRATING, OR TESTING |
| 1 | DF | MEASUREMENT SYSTEM IN A SPECIFIC ENVIRONMENT {6} |
| 33 | DF | .~ Mechanical measurement system {6} |
| 50 | DF | .~.~ Fluid measurement (e.g., mass, pressure, viscosity) {5} |
| 53 | ![]() | .~.~.~ Resistive sensor |