View Original Size
|
GB/T1626-2008 |
Quality Standard |
Result |
||
|
Items |
Superior Class |
First Class |
Qualified Class |
|
|
Appearance |
White crystal |
White crystal |
White crystal |
White crystal |
|
Purity min |
99.6% |
99.0% |
96.0% |
99.7% |
|
SO4 max |
700ppm |
1000ppm |
2000ppm |
20ppm |
|
Ash max |
100ppm |
800ppm |
2000ppm |
20ppm |
|
Fe max |
5ppm |
15ppm |
100ppm |
1.5ppm |
|
Pb max |
5ppm |
10ppm |
200ppm |
1ppm |
|
Cl max |
5ppm |
20ppm |
100ppm |
5ppm |
|
Ca max |
5ppm |
- |
- |
0ppm |
|
Na max |
2ppm |
|||
|
Mg max |
2ppm |
|||
|
Cu max |
2ppm |
|||
|
Zn max |
2ppm |
|||
|
As max |
0.5ppm |
|||
|
Conclusion |
Conforms to the standard |
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Contact: Steven Chai
Tel:+86-15726368635
QQ:2352602712
Email: sales03@wfdongpu.com
