| Acid, nitrous and nitrosonaphthol, 5-hydroxyindole acetic acid/serotonin / Chromatographic/fluorometric method, catecholamines | 19 | — |
| Acid, phosphoric-tungstic (spectrophotometric), chloride | 16 | — |
| Assay, porphyrin, spectrophotometry, lithium / Atomic absorption, lithium | 15 | — |
| Enzymatic method, ammonia | 27 | — |
| Fluorometric measurement, porphyrins | 26 | — |
| System, test, oxalate / Uranyl acetate/zinc acetate, sodium | 12 | — |
| Titrimetric with edta and indicator, calcium | 28 | — |