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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
0.0076%
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
Packing in 25kg/bag, 25 tons in one 20 feet container