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} |
806 | DF | .~.~ Varied according to predetermined pattern {4} |
808 | DF | .~.~.~ Repetitive {7} |
812 | .~.~.~.~ Flexing, bending, or folding |