| C | SK | CHEMISTRY; METALLURGY |
| C05 | KL | FERTILISERS; MANUFACTURE THEREOF [4] |
| C05D | UKL | INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE |
| C05D 1/00 | HGR | Fertilisers containing potassium (C05D 7/00 takes precedence) [1, 2006.01] |
| C05D 1/02 | UGR1 | | . | Manufacture from potassium chloride or sulfate or double or mixed salts thereof [1, 2006.01] |
|
| C05D 1/04 | UGR1 | | . | from minerals or volcanic rocks [1, 2006.01] |
|
| C05D 3/00 | HGR | Calcareous fertilisers (C05D 7/00 takes precedence) [1, 2006.01] |
| C05D 3/02 | UGR1 | | . | from limestone, calcium carbonate, calcium hydrate, slaked lime, calcium oxide, waste calcium compounds [1, 2006.01] |
|
| C05D 3/04 | UGR1 | | . | from blast-furnace slag or other slags containing lime or calcium silicates [1, 2006.01] |
|
| C05D 5/00 | HGR | Fertilisers containing magnesium (C05D 7/00 takes precedence) [1, 2006.01] |
| C05D 7/00 | HGR | Fertilisers producing carbon dioxide [1, 2006.01] |
| C05D 9/00 | HGR | Other inorganic fertilisers [1, 2006.01] |
| C05D 9/02 | UGR1 | | . | containing trace elements [1, 2006.01] |
|
| C05D 11/00 | HGR | Mixtures of fertilisers covered by more than one of main groups C05D 1/00-C05D 9/00 [1, 2006.01] |