Moisture per cent by weight (Maximum) – 2.5% Total Nitrogen per cent by weight (Minimum) – 18% Ammoniacal nitrogen form per cent by weight (Minimum) – 15.5% Total Nitrogen in the form of Urea per cent by weight (Maximum) – 2.5% Neutral ammonium citrate soluble phosphates ( as P2O5) per cent by weight (Minimum) – 46% Water soluble Phosphates (as P2O5) per cent by weight (Minimum) –