98%: 含量Assay by Complexiometric EDTA 97.5 - 102.5% 鎘Cd by Complexiometric EDTA 48.0- 50.5 % 水不溶物 ≤ 0.01% 硫酸鹽(SO4) ≤ 0.05% 鐵(Fe) ≤ 0.001% 鋅(Zn) ≤ 0.01% 銅(Cu) ≤ 0.01% 鉛(Pb) ≤ 0.05%