Test | Requirement | Result |
Assay Content % | 99.0~101.0% | 99.99 |
Loss on Drying(105℃,2h) % | ≤1 | 0.026 |
Organic Impurities μg/g | ≤20 | <20 |
Impurity A % | ≤0.125 | <0.125 |
Impurity B mg/kg | ≤20 | <20 |
Fluoride mg/kg | ≤3 | <0.50 |
Potassium % | 17.0-21 | 19.8 |
Heavy Metals mg/kg | ≤5 | <5 |
Arsenic mg/kg | ≤3 | 0.43 |
Lead mg/kg | ≤1 | 0.19 |
Selenium mg/kg | ≤10 | 0.47 |
Sulfate % | ≤0.5 | 0.17 |
PH (1 in 100 solution) | 5.5-7.5 | 6.67 |
Microbiological Tests
Test | Requirement | Result |
Total Plate Count cfu/g | ≤200 | <20 |
Coliforms-MPN MPN/g | ≤10 | None |
Yeast and Moulds cfu/g | ≤100 | <10 |
E.Coli | Negative | None |
Salmonella | Negative | None |
Particle Size
Sieve | Percent |
30-100mesh | 98% |