| 432 | Photometric Method, Ammonia | Ammonia Test System. |
| 432 | Photometric Method, Ammonia | Ammonia Test System. |
| K991371 | CARESIDE AMMONIA | CARESIDE, INC. |
| K820723 | KODAK EKTACHEM CLINICAL CHEM. NH3 | EASTMAN KODAK COMPANY |
| K813366 | AMMONIA TEST | WAKO PURE CHEMICAL INDUSTRIES, LTD. |
| 10758750009602 | PHOTOMETRIC METHOD, AMMONIA |
| 10758750000012 | PHOTOMETRIC METHOD, AMMONIA |