| p.a | pur. | |
| Mass fraction of total chromium (III) chloride hexahydrate in conversion to CrCl3·6H2O 98% | min | 98% min |
| Mass fraction of water-insoluble residue | 0.003% max | 0.01% max |
| Mass fraction of total sulfates in conversion to SO4 | 0.005% max | 0.01% max |
| Mass fraction of total ammonium salts in conversion to NH4 | 0.01% max | 0.01% max |
| Mass fraction of total aluminum in conversion to Al | 0.02% max | 0.02% max |
| Mass fraction of total iron in conversion to Fe | 0.003% max | 0.005% max |
| Mass fraction of total amount of potassium, sodium and calcium (K+Na+Ca) | 0.05% max | 0.05% max |
| Mass fraction of total heavy metals in conversion to Pb | 0.0005% max | 0.003% max |
| pH of reagent solution with 5% mass fraction | 2.0-3.0 | 2.0-3.0 |