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7N Grade(99.99999%)

Purity wt% 99.99999 up
Impurity ppm(wt) Element Standard D.Limit Element Standard D.Limit
Na
Al
Si
S
Cl
K
Ca
Cr
Fe
< 0.03 < 0.03 < 0.05 < 0.05 < 0.05 < 0.03 < 0.03 < 0.05 < 0.05 0.01
0.01
0.01
0.03
0.03
0.01
0.02
0.01
0.01
Ni
Cu
Se
Ag
Cd
Sb
Tl
Pb
Bi
< 0.03 < 0.05 < 0.02 < 0.05 < 0.05 < 0.05 < 0.1 < 0.03 < 0.03 0.01
0.05
0.05
0.05
0.05
0.01
0.01
0.01
0.01

* D.Limit = Detection Limit

6N Grade(99.9999%)

Purity wt% 99.9999 up
Impurity ppm(wt) Element Standard D.Limit Element Standard D.Limit
Na
Al
Si
S
Cl
K
Ca
Cr
Fe
< 0.2 < 0.1 < 0.1 < 0.2 < 0.2 < 0.1 < 0.2 < 0.1 < 0.1 0.01
0.01
0.01
0.03
0.03
0.01
0.02
0.01
0.01
Ni
Cu
Se
Ag
Cd
Sb
Tl
Pb
Bi
< 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.21 < 0.1 < 0.1 0.01
0.05
0.05
0.05
0.05
0.01
0.01
0.01
0.01

* D.Limit = Detection Limit

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