| Testing Item | Standard | Result |
| Appearance | Colorless or white crystal | conforms |
| ldentification | Complies with the limit Test | conforms |
| Clarity&Colour of Solution | Pass test | Pass test |
| Purity /% | 99.5~101. | 99.96 |
| Sulphated Ash/% | ≤ 0.05 | 0.01 |
| Sulphate/% | ≤0.015 | <0.015 |
| Oxalic acid/% | ≤0.01 | <0.01 |
| Heavy Metals/% | ≤0.0005 | <0.0005 |
| Readily Carbonisable Substance | Pass test | Pass test |
| Bacterial Endotoxin | ≤ 0.5lU/mg | <0.5lU/mg |
| Aluminium | ≤ 0.2ppm | <0. 2ppm |
| Lead | ≤ 0.2ppm | <0.2ppm |
| Arsenic | ≤ 1ppm | <1ppm |
| Mercury | ≤ 1ppm | <1ppm |
| Mesh | 8-80MESH | Conforms |
| Note: When a user with special requirements for fineness, negotiated by the supply and demand sides | ||
Polifar group is established in beautiful and economically developed city Nanjing in 2013.