Index Name
|
Excellent grade
|
First grade
|
Eligible grade
|
Main content % min
|
99.50
|
99.50
|
99.00
|
Ca % max
|
1.00
|
0.03
|
0.60
|
Ba % max
|
0.50
|
0.05
|
0.50
|
Mg and alkali metals % max
|
0.50
|
------
|
0.50
|
pH value
|
5.0-7.0
|
5.0-7.0
|
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|