ARTICOLO | GRADE1 | GRADE2 | GRADE3 | GRADE4 | GRADE5 |
Purezza | ≥99.00% | ≥99.00% | ≥98.00% | ≥93.00% | ≥86.00% |
H2O | ≤0.7100% | ≤0.7100% | ≤1.8000% | ≤6.5000% | ≤13.000% |
Calcio | ≤0.0100% | ≤0.0300% | ≤0.0360% | ≤0.0460% | ≤0.0650% |
Sodio | ≤0.0012% | ≤0.0012% | ≤0.0012% | ≤0.0020% | ≤0.0030% |
Solfuro | traccia | traccia | ≤0.0050% | ≤0.0100% | ≤0.0100% |
Ferro | ≤0.0010% | ≤0.0011% | ≤0.0013% | ≤0.0016% | ≤0.0016% |
Magnesio | ≤0.0050% | ≤0.0050% | ≤0.0050% | ≤0.0080% | ≤0.0080% |
Stronzio | ≤0.0050% | ≤0.0050% | ≤0.0050% | ≤0.0080% | ≤0.0080% |
Sostanze insolubili dell'acqua | ≤0.0150% | ≤0.0150% | ≤0.0250% | ≤0.0350% | ≤0.0450% |
China