B Inorganic compound primary nutrient fertilisers

20 %w/w

As total N + P2O5 + K2O

3 %w/w

As total nitrogen

5 %w/w

As K2O

5 %w/w

As P2O5

(1) Total nitrogen (2) Nitric nitrogen (3) Ammoniacal nitrogen (4) Ureic nitrogen (5) Cyanamide nitrogen

(1) Water-soluble P2O5 (2) P2O5 soluble in neutral ammonium citrate (3) P2O5 soluble in neutral ammonium citrate and in water (4) P2O5 soluble in mineral acids only (5) P 2O 5 soluble in alkaline ammonium citrate (Petermann) (6a) P2O5 soluble in mineral acids, of which at least 75 % of the declared P2O5 content is soluble in 2 % citric acid (6b) P2O5 soluble in 2 % citric acid (7) P2O5 soluble in mineral acids, of which at least 75 % of the declared P2O5 content is soluble in alkaline ammonium citrate (Joulie) (8) P2O5 soluble in mineral acids, of which at least 55 % of the declared P2O5 content is soluble in 2 % formic acid

Particle size of the basic phosphatic ingredients Thomas slag: at least 75 % able to pass through a sieve with a mesh of 0,160 mm Aluminium-calcium phosphate: at least 90 % able to pass through a sieve with a mesh of 0,160 mm Calcined phosphate: at least 75 % able to pass through a sieve with a mesh of 0,160 mm Soft ground rock phosphate: at least 90 % able to pass through a sieve with a mesh of 0,063 mm Partially solubilised rock phosphate: at least 90 % able to pass through a sieve with a mesh of 0,160 mm

Water soluble K2O

Total nitrogen

If any of the forms of nitrogen (2) to (5) amounts to at least 1 % by weight, it must be declared, If above 28 %, see Annex III.2

1. An NPK fertiliser free from Thomas slag, calcined phosphate, aluminium- calcium phosphate, partially solubilised rock phosphate and soft ground rock phosphate must be declared in accordance with solubilities (1), (2) or (3): - when the water-soluble P2O5 does not amount to 2 %, solubility (2) only shall be declared, - when the water-soluble P2O5 is at least 2 %, solubility (3) shall be declared, and the water- soluble P2O5 content must be indicated [solubility (1)]. The P2O5 content soluble in mineral acids only must not exceed 2 %. For this type 1, the test sample for determining solubilities (2) and (3) shall be 1 g

2 (a) An NPK fertiliser containing soft ground rock phosphate or partially solubilised rock phosphate must be free from Thomas slag, calcined phosphate and aluminium-calcium phosphate. It shall be declared in accordance with solubilities (1), (3) and (4) This type of fertiliser must contain: - at least 2 % P2O5 soluble in mineral acids only [solubility (4)],- at least 5 % P2O5 soluble in water and neutral ammonium citrate [solubility (3)], - at least 2,5 % water-soluble P2O5 [solubility (1)]. This type of fertiliser must be marketed under the designation 'NPK fertiliser containing soft ground rock phosphate' or 'NPK fertiliser containing partially solubilised rock phosphate'. For this type 2(a), the test sample for determining solubility (3) shall be 3 g

2 (b) An NPK fertiliser containing aluminium-calcium phosphate must be free from Thomas slag, calcined phosphate, soft ground rock phosphate and partially solubilised rock phosphate. It shall be declared in accordance with solubilities (1) and (7), the latter applying after deduction of the solubility in water. This type of fertiliser must contain: - at least 2 % of water-soluble P2O5 [solubility (1)], - at least 5 % of P2O5 according to solubility (7). This type of fertiliser must be marketed under the designation 'NPK fertiliser containing aluminium-calcium phosphate'

3. In the case of NPK fertilisers containing only one of the following types of phosphatic fertiliser: Thomas slag, calcined phosphate, aluminium- calcium phosphate, soft ground rock phosphate, the type designation must be followed by an indication of the phosphate ingredient. The declaration of the solubility of the P2O5 must be given in accordance with the following solubilities: - for fertilisers based on Thomas slag: solubility (6a) (France, Italy, Spain, Portugal, Greece, Czech Republic, Estonia, Cyprus, Latvia, Lithuania, Hungary, Malta, Poland, Slovenia, Slovakia, Bulgaria, Romania), (6b) (Germany, Belgium, Denmark, Ireland, Luxembourg, Netherlands, United Kingdom and Austria), - for fertilisers based on calcined phosphate: solubility (5), - for fertilisers based on aluminium- calcium phosphate: solubility (7), - for fertilisers based on soft ground rock phosphate: solubility (8)

Water-soluble potassium oxide

The indication 'low in chlo- ride' is linked to a maximum content of 2 % Cl

Chloride content may be declared

B.1 NPK fertilisers

1.1 (for N)

1.1 (for P2O5)

1.1 (for K2O)

1.9 (for total nutrients)

Product obtained chemically or by blending, without addition of organic nutrients of animal or vegetable origin

NPK fertilisers