
Tìm kiếm:
Item
|
Special grade
|
1st grade
|
2nd grade
|
|
Main content(on BaCO3 basis)
|
99.2%
|
99%
|
98.5%
|
min
|
Moisture
|
0.3%
|
0.3%
|
0.3%
|
max
|
Total sulphur(on SO4 basis)
|
0.25%
|
0.35%
|
0.45%
|
max
|
HCI insoluble matters
|
0.15%
|
0.25%
|
0.50%
|
max
|
Iron (on Fe basis)
|
0.004%
|
0.004%
|
0.008%
|
max
|
Chloride(on CL basis)
|
0.01%
|
---
|
---
|
max
|
Fineness
|
|
|
|
|
residue on 125um sieves
|
0.20%
|
0.30%
|
0.50%
|
max
|