| Items | Specification | Results |
| Color | White | White |
| Form | Solid | Solid |
| N(as dry basis), Content | 46% minimum; | 46.6% |
| Biuret | 0.9%maximum | 0.68% |
| Free Moisture | 0.5% maximum | 0.09% |
| Methylenediurea | 0.6% maximum | 0.35% |
| Lead | 20mg/kg maximum | 1.2mg/kg |
| Arsenic | 2mg/kg maximum | 0.2mg/kg |
| Size φ2.0 ~4.75mm | 90% | 93% |
| Conclusion: The batch tested complies with GB2440 - 2001 | ||