# Regulation (EC) No 2003/2003 of the European Parliament and of the Council of 13 October 2003 relating to fertilisers (Text with EEA relevance), Division A.1: Nitrogenous 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 1(a) Calcium nitrate (nitrate of lime) Chemically obtained product containing calcium nitrate as its essential ingredient and possibly ammonium nitrate 15 % N Nitrogen expressed as total nitrogen or as nitric and ammoniacal nitrogen. Maximum content of ammoniacal nitrogen: 1,5 % N Total nitrogen Additional optional particulars: Nitric nitrogen Ammoniacal nitrogen 1(b) Calcium magnesium nitrate (nitrate of lime and magnesium) Chemically obtained product containing calcium nitrate and magnesium nitrate as essential ingredients 13 % N Nitrogen expressed as nitric nitrogen. Minimum content of magnesium in the form of water-soluble salts expressed as magnesium oxide: 5 % MgO Nitric nitrogen Water-soluble magnesium oxide 1(c) Magnesium nitrate Chemically obtained product containing as its essential ingredient hexahydrated magnesium nitrate 10 % N Nitrogen expressed as nitric nitrogen When marketed in the form of crystals as note ‘in crystallised form’ may be added Nitric nitrogen Water-soluble magnesium oxide 14 % MgO Magnesium expressed as water-soluble magnesium oxide 2(a) Sodium nitrate (nitrate of soda) Chemically obtained product containing sodium nitrate as its essential ingredient 15 % N Nitrogen expressed as nitric nitrogen Nitric nitrogen 2(b) Chile nitrate Product prepared from caliche, containing sodium nitrate as its essential ingredient 15 % N Nitrogen expressed as nitric nitrogen Nitric nitrogen 3(a) Calcium cyanamide Chemically obtained product containing calcium cyanamide as its essential ingredient, calcium oxide and possibly small quantities of ammonium salts and urea 18 % N Nitrogen expressed as total nitrogen, at least 75 % of the nitrogen declared being bound in the form of cyanamide Total nitrogen 3(b) Nitrogenous calcium cyanamide Chemically obtained product containing calcium cyanamide as its essential ingredient, and calcium oxide and possibly small quantities of ammonium salts and urea, plus added nitrate 18 % N Nitrogen expressed as total nitrogen, at least 75 % of the non-nitric nitrogen declared being bound in the form of cyanamide. Nitric nitrogen content: minimum: 1 % N maximum: 3 % N Total nitrogen Nitric nitrogen 4 Sulphate of ammonia Chemically obtained product containing ammonium sulphate as its essential ingredient, possibly with up to 15 % calcium nitrate (nitrate of lime). 19,7 % N Nitrogen expressed as total nitrogen. Maximum content of nitric nitrogen 2,2 % N if calcium nitrate (nitrate of lime) is added. When marketed in the form of a combination of ammonium sulphate and calcium nitrate (nitrate of lime), the designation must include ‘ with up to 15 % calcium nitrate (nitrate of lime) ’ . Ammoniacal nitrogen. Total nitrogen if calcium nitrate (nitrate of lime) is added 5 Ammonium nitrate or calcium ammonium nitrate Chemically obtained product containing ammonium nitrate as its essential ingredient, which may contain fillers such as ground limestone, calcium sulphate, ground dolomite, magnesium sulphate, kieserite 20 % N Nitrogen expressed as nitric nitrogen and ammoniacal nitrogen, each of these two forms of nitrogen accounting for about half the nitrogen present. See Annexes III.1 and III.2 of this regulation, if required. The designation ‘calcium ammonium nitrate’ is exclusively reserved for a fertiliser containing only calcium carbonate (for instance limestone) and/or magnesium carbonate and calcium carbonate (for instance dolomite) in addition to ammonium nitrate. The minimum content of these carbonates must be 20 % and their purity level at least 90 % Total nitrogen Nitric nitrogen Ammoniacal nitrogen 6 Ammonium sulphate-nitrate Chemically obtained product containing as essential ingredients ammonium nitrate and ammonium sulphate 25 % N Nitrogen expressed as ammoniacal and nitric nitrogen. Minimum nitric nitrogen content: 5 % Total nitrogen Ammoniacal nitrogen Nitric nitrogen 7 Magnesium sulphonitrate Chemically obtained product containing ammonium nitrate, ammonium sulphate and magnesium sulphate as essential ingredients 19 % N Nitrogen expressed as ammoniacal and nitric nitrogen. Minimum nitric nitrogen content: 6 % N Total nitrogen Ammoniacal nitrogen 5 % MgO Magnesium in the form of water-soluble salts expressed as magnesium oxide Nitric nitrogen Water-soluble magnesium oxide 8 Magnesium ammonium nitrate Chemically obtained product containing ammonium nitrates and magnesium compound salts (dolomite magnesium carbonate and/or magnesium sulphate) as essential ingredients 19 % N Nitrogen expressed as ammoniacal nitrogen and nitric nitrogen. Minimum nitric nitrogen content 6 % N Total nitrogen Ammoniacal nitrogen Nitric nitrogen 5 % MgO Magnesium expressed as total magnesium oxide Total magnesium oxide and possibly, water-soluble magnesium oxide 9 Urea Chemically obtained product containing carbonyl diamide (carbamide) as its essential ingredient 44 % N Total ureic nitrogen (including biuret). Maximum biuret content: 1,2 % Total nitrogen, expressed as ureic nitrogen 10 Crotonylidene diurea Product obtained by reaction of urea with crotonaldehyde Monomeric compound 28 % N Nitrogen expressed as total nitrogen At least 25 % N from the crotonylidene diurea Maximum ureic nitrogen content: 3 % Total nitrogen Ureic nitrogen where this is at least 1 % by weight Nitrogen from crotonylidene diurea 11 Isobutylidene diurea Product obtained by reaction of urea with isobutyraldehyde Monomeric compound Monomeric compound 28 % N Nitrogen expressed as total nitrogen At least 25 % N from isobutylidene diurea Maximum ureic nitrogen content: 3 % Total nitrogen Ureic nitrogen where this is at least 1 % by weight Nitrogen from isobutylidene diurea 12 Urea formaldehyde Product obtained by reaction of urea with formaldehyde and containing as its essential ingredients molecules of urea formaldehyde Polymeric compound 36 % N total nitrogen Nitrogen expressed as total nitrogen At least 3/5 of the declared total nitrogen content must be soluble in hot water At least 31 % N from urea formaldehyde Maximum ureic nitrogen content: 5 % Total nitrogen Ureic nitrogen where this is at least 1 % by weight Nitrogen from formaldehyde urea that is soluble in cold water Nitrogen from formaldehyde urea that is only soluble in hot water 13 Nitrogenous fertiliser containing crotonylidene diurea Product obtained chemically containing crotonylidene diurea and a straight nitrogen fertiliser [List A-1, excluding products 3(a), 3(b) and 5] 18 % N expressed as total nitrogen At least 3 % nitrogen in ammoniacal and/or nitric and/or ureic form At least 1/3 of the declared total nitrogen content must be derived from crotonylidene diurea Maximum biuret content: (ureic N + crotonylidene diurea N) × 0,026 Total nitrogen For each form amounting to at least 1 %: nitric nitrogen ammoniacal nitrogen ureic nitrogen Nitrogen from crotonylidene diurea 14 Nitrogenous fertiliser containing isobutylidene diurea Product obtained chemically containing isobutylidene diurea and a straight nitrogenous fertiliser [List A-1, excluding products 3(a), 3(b) and 5] 18 % N expressed as total nitrogen At least 3 % nitrogen in ammoniacal and/or nitric and/or ureic form A least 1/3 of the declared total nitrogen content must derive from isobutylidene diurea Maximum biuret content: (Ureic N + isobutylidene diurea N) × 0,026 Total nitrogen For each form amounting to at least 1 %: nitric nitrogen ammoniacal nitrogen ureic nitrogen Nitrogen from isobutylidene diurea 15 Nitrogenous fertiliser containing urea formaldehyde Product obtained chemically containing urea formaldehyde and a straight nitrogenous fertiliser [List A-1, excluding products 3(a), 3(b) and 5] 18 % N expressed as total nitrogen At least 3 % nitrogen in ammoniacal and/or nitric and/or ureic form At least 1/3 of the declared total nitrogen content must derive from urea formaldehyde The nitrogen from the urea formaldehyde must contain at least 3/5 nitrogen that is soluble in hot water Maximum biuret content: (Ureic N + urea formaldehyde) × 0,026 Total nitrogen For each form amounting to at least 1 %: nitric nitrogen ammoniacal nitrogen ureic nitrogen Nitrogen from urea formaldehyde Nitrogen from urea formaldehyde that is soluble in cold water Nitrogen from urea formaldehyde that is only soluble in hot water 16 Urea-ammonium sulphate Product obtained chemically from urea and ammonium sulphate 30 % N Nitrogen expressed as ammoniacal and ureic nitrogen Minimum ammoniacal nitrogen content: 4 % Minimum sulphur content expressed as sulphur trioxide: 12 % Maximum biuret content: 0,9 % Total nitrogen Ammoniacal nitrogen Ureic nitrogen Water-soluble sulphur trioxide --- Source: https://www.legislation.gov.uk/eur/2003/2003/division/A./division/A.1. (the official version) Page: https://openlegislation.uk/eu-regulation-2003-2003/division-A./division-A.1. Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.