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Quality of Parameter
Number | Name of parameters | Standard | ||||
I | II | III | ||||
i | ii | i | ii | |||
1 | Sodium sulfate(Na2SO4)% ≥ | 99.3 | 99.0 | 98.0 | 95.0 | 90.0 |
2 | Water-fast,% ≤ | 0.05 | 0.05 | 0.10 | 1.0 | 2.0 |
3 | Calcium and Magnesium (Mg)% ≤ | 0.10 | 0.15 | 0.30 | 0.40 | 0.50 |
4 | Chloride ( CL )% ≤ | 0.12 | 0.35 | 0.70 | 1.0 | 1.50 |
5 | Iron (Fe) % ≤ | 0.002 | 0.002 | 0.010 | 0.040 |
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6 | Watery % ≤ | 0.10 | 0.20 | 0.50 | 2.0 | 5.0 |
7 | White degree % ≥ | 80 | 80 |
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