| 404 | Flame Photometry, Sodium | Sodium Test System. |
| 404 | Flame Photometry, Sodium | Sodium Test System. |
| K896829 | TECHNICON RA SYSTEMS SODIUM (COLORIMETRIC METHOD) | TECHNICON INSTRUMENTS CORP. |
| K841610 | COMPONENTS FOR POTASSIUM, SODIUM CHLO | SHABAN MFG. CO. |
| K840216 | SODIUM/POTASSIUM REAGENT SYS | SCLAVO, INC. |
| K834248 | PARALLEL FLAME PHOTOMETER & SODIUM | AMERICAN MONITOR CORP. |
| K811886 | CESIUM DILUENT 7.5M | GILFORD DIAGNOSTICS |
| K801892 | KLINAR REAGENT PAK, #36010 | HI CHEM, INC. |