Description
Specification| Test Item | Specification |
| Content (Na2H2P2O7) % | ≥95.0 |
| Phosphorus pentoxide(P2O5) | 63.0-64.0 |
| PH value | 3.7-4.5 |
| Water-insoluble % | ≤1.0 |
| Fluoride (F) % | ≤10ppm |
| Heavy metal (Pb) % | ≤10ppm |
| Arsenic (As) % | ≤1ppm |
| Pb | ≤1ppm |
| Hg | ≤1ppm |
| Cd | ≤1ppm |
| Loss on burning(105ºC)% ≤ | ≤0.5 |
| ROR | 28 |
Since 1998, TNN Group has been founded for 2 decades. Head quarter locates in Dalian -the most beautiful coastal city in Liaoning, China. Currently, TNN has 31 staffs, self-owned offices, cooperative laboratory, independent e-commerce platform, ISO9001 and CE certification, independent trademark and other high-level professional office equipment and institutional certifications, 3 overseas companies, 2 domestic offices and two subsidiaries.
Complaint
