项目名称

标准

镍(Ni),%                            

≥45

铁(Fe),%                           

≤0.0005

铜（Cu）,%                         

≤0.002

铅(Pb),%                           

≤0.0001

镁(Mg),%                           

≤0.005

钙(Ca),%                           

≤0.005

镉(Cd),%                       

≤0.001

钴(Co),%                       

≤0.02

水不溶物                      

≤0.001

        注：表中“%”指质量分数。