|
|
||
|
Content Impurity, %max | ||
|
Grade |
#0 |
#1 |
|
Al |
0.0005 |
0.001 |
|
As |
0.001 |
0.001 |
|
Bi |
0.0001 |
0.0001 |
|
Ca |
0.001 |
0.001 |
|
Co |
0.001 |
0.001 |
|
Cr |
0.001 |
0.001 |
|
Cu |
0.0003 |
0.0005 |
|
Fe |
0.001 |
0.001 |
|
K |
0.001 |
0.0015 |
|
Mg |
0.0007 |
0.001 |
|
Mn |
0.0005 |
0.001 |
|
Mo |
0.002 |
0.005 |
|
Na |
0.001 |
0.0015 |
|
Ni |
0.0007 |
0.0007 |
|
P |
0.0007 |
0.001 |
|
Pb |
0.0001 |
0.0001 |
|
S |
0.0007 |
0.001 |
|
Sb |
0.0005 |
0.001 |
|
Si |
0.001 |
0.001 |
|
Sn |
0.0002 |
0.0005 |
|
Ti |
0.001 |
0.001 |
|
V |
0.001 |
0.001 |
|
WO3 |
0.5 |
0.5 |
|
Loss of WO3 at calculation |
|
|
