ITEM | STANDARD |
Appearance | Colorless or white crystal |
Content,% | 97.5-100.5 |
Arsenic =<% | 0.0003 |
Fluorine =<% | 0.003 |
Heavy metals(As Pb) =<% | 0.002 |
Lead =<% | 0.001 |
Loss on drying,% | 10.0-13.3 |
Acid-insoluble substance=<% | 0.2 |
Alkalinity | According with the test |
Easy carbony substance | According with the test |
Identification A | Meet the erquirement |
Identification B | Meet the erquirement |
Mercury =< PPM | 1 |
Yeast =< | 10/g |
Mold =< | 10/g |
E.Coli | Absendt in 30g |
Salmonella | Absendt in 25g |