Superior grade First grade ............................................................................................................................................................................................................................................ Appearance White or slightly colored pellets or crystals ............................................................................................................................................................................................................................................. Total Nitrogen (N), min (%) 46.2 46.2 ............................................................................................................................................................................................................................................. Biuret, max (%) 1.4 1.4 ............................................................................................................................................................................................................................................. Moisture (%): -Drying method, max 0.3 0.3 -Fischer assay, max 0.5 0.5 ............................................................................................................................................................................................................................................. Free owing, % 100 100 ............................................................................................................................................................................................................................................. Granulometric composition (%): under 1 mm, max. 3 5 1–4, min. 94 94 2–4, min. 70 50 Under 6 mm None None ............................................................................................................................................................................................................................................. Granule static strength, min 7 (0.7) 5 (0.5) ............................................................................................................................................................................................................................................. Packaging, transportation and storage Packaging: shipped in bulk and in big-bags (800, 900, and 1000 kg). Transportation: urea is transported by all transportation means according to the cargo shipment