| 73 / | HD | MEASURING AND TESTING |
| 760 | DF | SPECIMEN STRESS OR STRAIN, OR TESTING BY STRESS OR STRAIN APPLICATION {12} |
| 788 | DF | .~ By loading of specimen (e.g., strength of material test) {16} |
| 849 | DF | .~.~ Bending, flexing, or folding {5} |
| 850 | | .~.~.~ Weld testing |