| Date | Grid | Clue | Author | Editor |
|---|---|---|---|---|
| Thu Jan 30, 2020 | 69A | Test the strength of, chemically (2) | Emily Carroll | Shortz |
| Fri Aug 8, 2014 | 40D | Test the strength of, in a way | Bruce Haight | Shortz |
| Thu May 6, 2010 | 41D | Measure the strength of, in a way | Dan Naddor | Shortz |
| Mon Oct 1, 2001 | 44D | Test the strength of, chemically (2) | Janice M. Putney | Shortz |
| Fri Jul 4, 1997 | 39D | Perform a chemical test | Manny Nosowsky | Shortz |
| Date | Grid | Clue | Author | Editor |
|---|---|---|---|---|
| Sun Nov 17, 1985 | 91D | Do a chemical measurement | Joy L. Wouk | Maleska |
| Fri Apr 17, 1981 | 39D | Make a lab test on a solution | C. J. Angio | Maleska |
| Sat Oct 26, 1963 | 5D | Analyze by a chemical process. | Louise Earnest | Farrar |
| Sat May 25, 1957 | 20A | Test by a chemical process. | A. H. Drummond Jr. | Farrar |
| Wed Dec 5, 1956 | 55A | Test by a chemical process. | Geraldine Rayment | Farrar |
| Mon Oct 8, 1956 | 11D | Test, in chemistry. | Cora Goodman | Farrar |
| Tue Sep 26, 1950 | 43D | Measure chemically. | Alice H. Cook | Farrar |
| Sun Nov 14, 1943 | 4D | Determine the concentration of: Chem. | P. J. Lamanna | Farrar |