Item | Unit | Test Method | 90 | 88 | 85 | 80 | 65 |
MgO | % | GB/T 5069-2015 | ≥ 90% | ≥ 88% | ≥ 85% | ≥ 80% | ≥ 65% |
SiO2 | % | GB/T 5069-2015 | ≤ 5% | ≤ 5% | ≤ 8% | ≤ 10% | ≤1 5% |
CaO | % | GB/T 5069-2015 | ≤ 2% | ≤ 2.5% | ≤ 2.5% | ≤ 3% | ≤ 4% |
Fe2O3 | % | GB/T 5069-2015 | ≤ 1% | ≤ 1% | ≤ 1% | ≤ 1% | ≤ 1.5% |
Al2O3 | % | GB/T 5069-2015 | ≤ 1% | ≤ 1% | ≤ 1% | ≤ 1% | ≤ 1% |
LOI | % | GB/T 5069-2015 | ≤ 2% | ≤ 4% | ≤ 7% | ≤ 12% | ≤ 20% |
Q: Can I get product's sample before I sign the contract?