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Inspection |
Standard |
Test Results |
Appearance |
White crystalline powder |
Conforms |
Assay |
99.0%-101.0% |
99.2% |
Solubility |
Clear |
Conforms |
Transmittance |
≧98.0% |
99.0% |
Loss on drying |
≤0.5% |
0.48% |
Residue on ignition |
≤0.1% |
0.03% |
sulfate |
≤0.02% |
<0.02% |
chloride |
≤0.02% |
<0.02% |
Ammonium ion |
≤0.02% |
<0.02% |
Calcium ions |
≤0.02% |
<0.02% |
Iron ions |
≤10ppm |
Conforms |
Heavy metals(Pb) |
≤10ppm |
Conforms |
As |
≤1ppm |
Conforms |
Total plate count |
≤1000cfu/g |
Conforms |
Yeast |
≤50cfu/g |
Conforms |
Mold |
≤50cfu/g |
Conforms |
E.coli |
Negative |
Conforms |
Salmonella |
Negative |
Conforms |
Conclusion |
1)The result conforms to the enterprise standard as above 2)Laboratory Chemical : For Laboratory Use Only |
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