Seaerch
TEL：0086-27-82288353
+86-13971029269
FAX：0086-27-82288295
Email: whcz_78@163.net
ADD.: Rm 1013,BLDG 3,Area C,Hankou City Plaza,Houhu Avenue,Wuhan
| ITEM | STANDARD |
| Assay(on the dried base) | min. 98.0% |
| Loss on drying | 19.0 %-23% |
| Flouride | max.0.003% |
| Arsenic (As) | max. 2 mg/kg |
| Lead (Pb | max. 2 mg/kg |
| Selenium | max. 0.003% |
| Heavy metals | max. 10 mg/kg |
