| Calibrators, drug mixture3 groups | 86 | 3 |
| Calibrators, ethyl alcohol / Enzymatic method, alcohol dehydrogenase, ultraviolet2 groups | 20 | 2 |
| Comparison of freezing points & stds. of known osmotic pressure, osmolality / Osmometer for clinical use | 15 | — |
| Electrode measurement, blood-gases (pco2, po2) and blood ph / Electrode, ion specific, sodium2 groups | 40 | 2 |
| Electrode, ion selective (non-specified)2 groups | 21 | 2 |
| Lead, atomic absorption | 7 | — |