702 / | HD | DATA PROCESSING: MEASURING, CALIBRATING, OR TESTING |
1 | DF | MEASUREMENT SYSTEM IN A SPECIFIC ENVIRONMENT {6} |
33 | DF | .~ Mechanical measurement system {6} |
35 | DF | .~.~ Flaw or defect detection {4} |
40 | ![]() | .~.~.~ Radiant energy (e.g., X-ray, infrared, laser) |