| 5992 | Chromatography(gas), Clinical Use | Gas Liquid Chromatography System For Clinical Use. |
| 5992 | Chromatography(gas), Clinical Use | Gas Liquid Chromatography System For Clinical Use. |
| K841891 | VARIAN 3300 & 3400 GAS CHROMATOGRAPHS | VARIAN ASSOC., INC. |
| K820071 | MODEL 5790 GAS CHROMATOGRAPH | HEWLETT-PACKARD CO. |
| K820025 | TRACE ANALYTICAL REDUCTION GAS ANALYZ | TRACE ANALYTICAL |
| K801745 | VISTA 44 GAS CHROMATOGRAPHY ANALYSIS | VARIAN ASSOC., INC. |