Product: Zinc Sulfate Heptahydrate Batch no＿20140522＿＿

Content＿22.0%＿＿＿             Quatity＿＿116T＿＿＿

Examining date  2014-05-22       

Manuf Date 2014-05-22          EXP.Date:2015-05-22

Items                         Standard          Result

Content(ZnSO4.7H2O)    :        97%            97.2%

锌(Zn)                :       22.0%          22.12%                     

重金属(pb)              :        0.001%          0.0008%

砷(AS)                  :       0.0005%          0.0002%

（Cd）                 :       0.001%           0.0006%

PH                     :        4 – 6             5.5

InsoIuble matter          :        0.05%           0.03%

＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿