Specification | GB25559-2010 | FCC,1999 |
Content(As Ca) | 16.8-18.3 | 16.8-18.3(Anhydrous) |
15.9-17.7 | 15.9-17.7(Monohydrate) | |
Arsenic | 3 | 3 |
Lead | 3 | 5 |
Heavy Mental(As P b) | 10 | 15 |
Fluoride | 25 | 50 |
Loss On Drying | 1.0 | 1.0( Anhydrous) |
Loss On Ignition | 14.0-15.5 | 14.0-15.5( Monohydrate) |
Clarity | pass test | -- |
Carbonate | pass test | -- |
Free Acid & Its Auxiliary Salt | pass test | -- |