Urea-prill nitrogen: 46%min moisture: 0.5%max biuret: 1.0%max particle ... size: 0.85-2.80mm 90%min Urea-prillnitrogen: 46%min moisture: 0.5%max biuret: 1.0%maxparticle size ... : 0.85-2.80mm 90%min Urea-granularnitrogen: 46%min moisture: 0.5%max biuret: 1.0%maxparticle size ... -2.8mm, 90%min0.85-2.8mm, 95% fertilizer Urea 46%