Testing Item | Standard | Result |
Characters | Colorlessor White Crystal | Colorlessor White Crystal |
Identification | Pass the test | Pass the test |
Assay | 99.5-100.5% | 99.9% |
Water | 7.5-8.8 | 8.7 |
Sulfate | ≤150mg/kg | <150mg/kg |
Lead | ≤0.5ppm | <0.5ppm |
Note: Special requirements of particle size should be negotiated by both suppliers and customers |