Tarım, sanayi, perakende ve ihracat için tasarlanmıştır.
| Parameters Description | Norms | Description |
| Appearance | White or clear crystals | |
| Nitrogen mass fraction as dry substance, %, not less than | 21/td> | |
| Mass fraction of water, %, not more than | 0.2 | |
| Free H2SO4 mass fraction, %, not more than | 0.03 | |
| Mass fraction more than 0.5 mm, %, not less than | 80 | |
| Mass fraction less than 6 mm, % | 100 | |
| Flowability, % | 100 | |
| Mass fraction of residue non soluble in water, %, not more than | 0.02 |