Only annual contracts only Chemical indexes: 1. Nitrogen 46.6% by weight min. 2. Moisture 0.5% max 3. Biuret 1% by weight 4. Fisper 0.35 max 5. Anti-caking agent 0.5% max 6. Free ammonia 160 pxt ppm max 7. Prill 95% max 8. Granulation dimension from 1-4 mm:90% min 9. Dimension lessthan 1 mm: Absence 10. Melting point @ 132 degree centigrade 11. Color pure white 12. Odor threshold odorlees or slight ammonia 13. Boiling point decomposes before bioling 14. Hazardous ingredients none according to controlled product regulations Physical indexes: 1. Non-clotted 100% free from harmful substances 2. Internationally accepted standard for urea 46% prilled 3. Free floating, treated with anti-caking treatment 4. Free from impruties, sand, dust and certified non radioactive 5. Physical state solid @ 20 cand 101kps, white granules 6. Spacific gravity solid @ 20 degrees centigrade 7. Vapor density not applicable, floatability/water sinks and mixes 8. Molecular weight 60.065