Superior product
|
First grade
|
Qualified product
|
|
Content( BaCO3 )%≥
|
99.2
|
99.0
|
98.5
|
Water %≤
|
0.30
|
0.30
|
0.50
|
Residue of roasting %≤
|
0.15
|
0.25
|
0.50
|
Total sulfur %≤
|
0.25
|
0.30
|
0.40
|
Fe %≤
|
0.004
|
0.004
|
0.008
|
Fineness :Powder 125μm
tailover%≤
|
0.20
|
0.30
|
0.50
|
Fineness :Granular 850μm
tailover%≤
|
1
|
1
|
1
|
Fineness :Granular 150μm
tailover%≥
|
75
|
75
|
75
|