Specification | GB 25561-2010 | FCC VII | ||
Content(On Dry Basis), w/% ≥ | 98.0 | 98.0 | ||
Arsenic(As), mg/kg ≤ | 3 | 3 | ||
Fluoride(As F),mg/kg ≤ | 10 | 10 | ||
Heavy Metal(As Pb), mg/kg ≤ | 10 | ———— | ||
Insoluble Substances, w/% ≤ | 0.2 | 0.2 | ||
Lead (Pb), mg/kg ≤ | 2 | 2 | ||
Loss on drying, w/% | Anhydrous≤ | 2.0 | 2.0 | |
pH value(10g/L,25℃) | 8.6-9.4 | ———— |