| Date | Grid | Clue | Author | Editor |
|---|---|---|---|---|
| Sun, Jul 16, 2017 | 93D | Concentration, to a British chemist | Andrea Carla Michaels and Pete Muller | Shortz |
| Sat, Jan 20, 2007 | 40D | British chemist's solution strength | Harvey Estes | Shortz |
| Wed, Aug 24, 2005 | 27D | British chemical lab measurement | Mel Taub | Shortz |
| Sat, May 18, 1996 | 22A | Solution strength, in Surrey | M. Nosowsky | Shortz |