| 1/00 | Electrolytic production of inorganic compounds or non-metals |
| 1/02 | Electrolytic production of inorganic compounds or non-metals of hydrogen or oxygen |
| 1/04 | Electrolytic production of inorganic compounds or non-metals of hydrogen or oxygen by electrolysis of water |
| 1/06 | Electrolytic production of inorganic compounds or non-metals of hydrogen or oxygen by electrolysis of water in cells with flat or plate-like electrodes |
| 1/08 | Electrolytic production of inorganic compounds or non-metals of hydrogen or oxygen by electrolysis of water in cells with flat or plate-like electrodes of the filter-press type |
| 1/10 | Electrolytic production of inorganic compounds or non-metals of hydrogen or oxygen by electrolysis of water in diaphragm cells |
| 1/12 | Electrolytic production of inorganic compounds or non-metals of hydrogen or oxygen by electrolysis of water in pressure cells |
| 1/13 | Electrolytic production of inorganic compounds or non-metals of ozone |
| 1/14 | Electrolytic production of inorganic compounds or non-metals of alkali metal compounds |
| 1/16 | Electrolytic production of inorganic compounds or non-metals of alkali metal compounds Hydroxides |
| 1/18 | Electrolytic production of inorganic compounds or non-metals of alkaline earth metal compounds or magnesium compounds |
| 1/20 | Electrolytic production of inorganic compounds or non-metals of alkaline earth metal compounds or magnesium compounds Hydroxides |
| 1/21 | Electrolytic production of inorganic compounds or non-metals of manganese oxides |
| 1/22 | Electrolytic production of inorganic compounds or non-metals of inorganic acids |
| 1/24 | Electrolytic production of inorganic compounds or non-metals of halogens or compounds thereof |
| 1/26 | Electrolytic production of inorganic compounds or non-metals of halogens or compounds thereof Chlorine; Compounds thereof |
| 1/28 | Electrolytic production of inorganic compounds or non-metals of per-compounds |
| 1/30 | Electrolytic production of inorganic compounds or non-metals of per-compounds Peroxides |
| 1/32 | Electrolytic production of inorganic compounds or non-metals of per-compounds Perborates |
| 1/34 | Electrolytic production of inorganic compounds or non-metals Simultaneous production of alkali metal hydroxides and chlorine, its oxyacids or salts |