Items
（检测项目）

Standard
（检测标准）

Analysis data
（检测结果）

Appearance
外观

white crystalline powder
白色粉未

Conforms
符合

Transmittance
透过率

Not less than95.0%
不低于95.0%

98.8%

Chloride (Cl)
氯

Not more than 0.02%
不高于0.02%

<0.02%

Ammonium (NH4)
铵

Not more than 0.02%
不高于0.02%

<0.02%

Sulfate (SO4)
硫化物

Not more than 0.02%
不高于0.02%

<0.02%

Iron (Fe)
铁

Not more than 30ppm
不高于30ppm

Conforms
符合

Heavy metal(Pb)
铅

Not more than 10ppm
不高于10ppm

Conforms
符合

Arsenic(As2O3)
砷

Not more than 1ppm
不高于1ppm

Conforms
符合

Loss on drying
干燥失重

Not more than 0.20%
不高于0.20%

0.09%

Residue on ignition(sulfated)
灼烧残渣

Not more than 0.1%
不高于0.1%

0.08%

Assay
含量

98.5 to101.5%

99.30%

Inspector:

曾令娇、程仁玉 

Manager:

王玲

Conclusion

The product conforms to the standard.