Specification | GB29207-2012 | FCC VII |
Content(MgSO4), w/% ≥ | 99.0 | 99.5 |
Heavy Metal(As Pb),mg/kg ≤ | 10 | ———— |
Lead(Pb),mg/kg ≤ | 2 | 4 |
Selenium(Se),mg/kg ≤ | 30 | 30 |
PH (50g/L,25℃) | 5.5-7.5 | ———— |
Chloride(As Cl),w/% ≤ | 0.03 | ———— |
Arsenic(As),mg/kg ≤ | 3 | ———— |
Iron(Fe),mg/kg ≤ | 20 | ———— |
Loss on Ignition (Heptahydrate), ppm | 40.0-52.0 | 40.0-52.0 |
Loss on Ignition(Dried),w/% | 22.0-32.0 | 22.0-28.0 |