1. ISO certificate and rohs standard 2. Professional manufacturer for fire retardant app 3. Polymerization>1000 4. Specification Phosphorus content % 31.0-32.0 Nitrogen content % 14.0-15.0 Hot decompositi-on temperature 275 Moisture content(%) 0.25 Ph value (10% suspended liquid) 5.5-7.0. 25kg/plastic woven bag, 20 metric ton per 20'container.