702 / | HD | DATA PROCESSING: MEASURING, CALIBRATING, OR TESTING |
FOR 134 | DF | MEASURING, TESTING, OR MONITORING (364/550) {3} |
FOR 141 | DF | .~ For basic measurements (364/556) {8} |
FOR 145 | DF | .~.~ Dimension (364/560) {2} |
FOR 149 | .~.~.~ Area or volume (364/564) |