(6). Specification:
|
Item
?
|
Quality Index
|
||
|
Excellence
|
First Grade
|
Qualification
|
|
|
Purity % ≥?
|
99.00
|
98.00
|
97.00
|
|
Calcium(Ca) % ≤
|
0.036
|
0.090
|
--
|
|
Sodium(Na) % ≤
|
0.20
|
--
|
--
|
| Sulphide(S) % ≤ |
0.003
|
0.008
|
--
|
| Iron(Fe) % ≤ |
0.001
|
0.003
|
0.02
|
| Water insoluble matter % ≤ |
0.05
|
0.10
|
0.20
|
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