This product is manufactured using STAMICARBON licensed technology. Property Unit Specification Test method wt% 46.0 Min. ISO-5315 Nitrogen content Water content wt% 0.5 Max. ISO -2753 Biuret wt% 1.0 Max. ISO -2754 Formaldehyde wt% 0.5 Max. ISO 14184 Particle size (2.0 4.0 mm) wt% 90.0 Min. ISO -8397