|
Item
?
|
Quality Index
|
||
|
High-Class
|
First-Class
|
Qualified-Class
|
|
|
Purity
|
99.30% min
|
99.0% min
|
98.5% min
|
|
Moisture :
|
0.05% max
|
0.10% max
|
0.10% max
|
|
Chlorides ( As BaCL2?)
|
0.05% max
|
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|
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|
|
Iron (Fe)
|
0.001% max
|
0.003 % max
|
0.005% max
|
|
Water insolubles
|
0.05% max
|
0.1% max
|
0.15% max
|
|
PH value :
|
5.0 - 8.0
|
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|
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