Item | Standard | Testing results |
Content | 99.5%-100.5% | 99.7% |
Transmittance | ≥96.0% | 96.5% |
Moisture [water] content | ≤0.5% | 0.45% |
Easy carbonization | ≤1.0 | 0.88% |
Sulfuric acid ash | ≤0.05% | 0.04% |
Cloride | ≤0.005% | 0.003% |
Sulfate | ≤0.01% | 0.0068% |
Oxalate | ≤0.01% | 0.0076% |
Calcium salt | ≤0.02% | 0.01% |
Ferric salt | ≤5mg/kg | 4mg/kg |
Arsenic salt | ≤1mg/kg | 0.89mg/kg |
Lead | ≤0.5mg/kg | 0.35mg/kg |
Water insoluble | The filtration time less than a minute, the membrane without changing color, variegatedparticlesvisiblevisually no more than three |
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Packing in 25kg/bag, 25 tons in one 20 feet container