Specifications: NPK 15-15-15 QUALITY MEASURES Nitrogen total(N), % - 15 Phosphate total, % -15 Potassium total % - 15 Sum of nutrients, %, min 45 Total mass of water, %, max granularmetry Total mass of granules with the size: Less than 1mm, %, max 3 From 1 to 4 mm, %, min 95 Less than 6 mm, % 100 Granular statical strength, Mpa(kgs/cm2), min 3,0(30) Friability, % 100