Item Requirement Result Appearance gray powder Complies Phosphorus(p) 16.5% 18.2% Calcium(Ca) 21.0% 21.8% Arsenic(As) 30ppm 10ppm Heavy Metals(Pb) 30ppm 10ppm Fluoride(F) 0.18% 0.16% Mercury(llg) 0.001mg/kg Size(Pass 500um),min 95% 97.5%