Division A.3 Potassic fertilisers
| No | Type designation | Data on method of production and essential ingredients | Minimum content of nutrients (percentage by weight)Data on the expression of nutrientsOther requirements | Other data on the type designation | Nutrient content to be declaredForms and solubilities of the nutrientsOther criteria |
|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 |
| F1F21 | Crude potassium salt | Product obtained from crude potassium salts | 9 % K 2 O Potassium expressed as water-soluble K 2 O 2 % MgO Magnesium in the form of water-soluble salts, expressed as magnesium oxide | Usual trade names may be added | Water-soluble potassium oxide Water-soluble magnesium oxide Total sodium oxide Chloride content must be declared |
| 2 | Enriched crude potassium salt | Product obtained from crude potassium salts enriched by blending with potassium chloride | 18 % K 2 O Potassium expressed as water-soluble K 2 O | Usual trade names may be added | Water-soluble potassium oxide Optional mention of the water-soluble magnesium oxide content where higher than 5 % MgO |
| 3 | Muriate of potash | Product obtained from crude potassium salts and containing potassium chloride as its essential ingredient | 37 % K2O Potassium expressed as water-soluble K2O | Usual trade names may be added | Water-soluble potassium oxide |
| 4 | Potassium chloride containing magnesium salts | Product obtained from crude potassium salts with added magnesium salts and containing potassium chloride and magnesium salts as essential ingredients | 37 % K2O Potassium expressed as water-soluble K2O | Water-soluble potassium oxide Water-soluble magnesium oxide | |
5 % MgO Magnesium in the form of water-soluble salts, expressed as magnesium oxide | |||||
| 5 | Sulphate of potash | Product obtained chemically from potassium salts and containing potassium sulphate as its essential ingredient | 47 % K2O Potassium expressed as water-soluble K2O Maximum chloride content: 3 % Cl | Water-soluble potassium oxide Optional mention of the chloride content | |
| 6 | Sulphate of potash containing magnesium salt | Product obtained chemically from potassium salts, possibly with addition of magnesium salts, and containing potassium sulphate and magnesium sulphate as essential ingredients | 22 % K2O Potassium expressed as water-soluble K2O | Usual trade names may be added | Water-soluble potassium oxide Water-soluble magnesium oxide Optional mention of the chloride content |
8 % MgO Magnesium in the form of water-soluble salts, expressed as magnesium oxide Maximum chloride content: 3 % Cl | |||||
| 7 | Kieserite with potassium sulphate | Product obtained from Kieserite with potassium sulphate added | 8 % MgO Magnesium expressed as water-soluble MgO | Usual trade names may be added | Water-soluble magnesium oxide Water-soluble potassium oxide Optional mention of the chloride content |
6 % K2O Potassium expressed as water-soluble K2O Total MgO + K2O: 20 % Maximum chloride content: 3 % Cl |
Annotations
Textual amendments
- F1
- F2
Notes on Attachment
Textual amendments
- F1
Words in Regulation substituted (31.12.2020) by The Fertilisers and Ammonium Nitrate Material (Amendment) (EU Exit) Regulations 2019 (S.I. 2019/601), regs. 1(2), 5(2)(b); 2020 c. 1, Sch. 5 para. 1(1)