|
ITEM
|
FIRST GRADE
|
SECOND GRADE
|
PASTED GRADE
|
|
APPERANCE
|
Amorphous white powder
|
White
|
|
|
BaSO4(as per dry),%, ≥
|
98.0
|
97.0
|
98.0
|
|
PH
|
6.5-8.0
|
6.5-8.0
|
6.5-7.5
|
|
Solubility in water % ≤
|
0.20
|
0.30
|
0.20
|
|
Acid-soluble material, %≤
|
0.60
|
1.00
|
0.60
|
|
Fe % ≤
|
0.004
|
0.006
|
0.004
|
|
S % ≤
|
0.003
|
0.005
|
0.003
|
|
Moisture % ≤
|
0.20
|
0.20
|
28.0
|
|
Oil absorption % ≤
|
15-25
|
15-25
|
-
|
|
Particle Size Distribution 10um % ≥
|
80.0
|
-
|
90.0
|
|
Particle Size Distribution 5um % ≥
|
60.0
|
-
|
70.0
|
|
Particle Size Distribution 2um % ≥
|
25.0
|
-
|
50.0
|
|
Fineness (43um residue on sieve ),% ≤
|
0.10
|
0.30
|
0.10
|
|
Whiteness≥
|
Standard
|
Standard
|
Standard
|
PACKAGE: 25kg plastic woven bag with plastic lining