锌锭标准

锌锭标准:GB/T 470-1997

锌锭按化学成分分为四个牌号：Zn99.995、Zn99.99、Zn99.95、Zn99.5、Zn98.7。

 牌号                Zn不小于                                         杂质含量 不大于

                                                            Pb         Cd         Fe         Cu       Sn        Al              As                 Sb            总和

Zn99.995        99.9995                  0.003    0.002   0.001   0.001   0.001     -                 -                    -              0.0050  

Zn99.99          99.99                       0.005    0.003   0.003   0.002   0.001     -                 -                    -              0.010                       

Zn99.95          99.95                       0.020    0.02     0.010   0.002   0.001     -                  -                    -              0.050                         

Zn99.5             99.5                         0.3        0.07      0.04     0.002   0.002    0.010       0.005