Urea Specification: Nitrogen: 46% by weight minimum Moisture: 0, 5% maxfischer/0.3% max dryer Biuret: 1% max by weight Anti-caking agent: treated against anti-caking Free ammonia: 160 pkt, ppm max Granulation: 2-4 mm 90% minimum greater then 4 mm 4% Melting point: 132 degrees celsius Colour: standard white or pure white prilled Free from: harmful substances Radiation: non radioactive