UREA MADE A (MARK A)

Quality: 

Mass fraction of nitrogen in terms of dry matter, %, not less than - 46,2

Mass fraction of biuret, %, no more - 1,4

Mass fraction of free ammonia, %, no more, for carbamide: 

crystalline - 0,01
granular - 0,03

Mass fraction of water, %, not more than: 

hygroscopic - 0,3
общей - 0,6