Name |
Superior grade |
Ni |
22.0% Min |
Co |
0.002% Max |
Fe |
0.001% Max |
Cu |
0.001% Max |
Mn |
0.001% Max |
Na |
0.003% Max |
Ca |
0.01% Max |
Zn |
0.001% Max |
Cd |
0.001%Max |
Insoluble matter |
0.02% Max |