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5A | Items | Unit | Index | Index | ||
Drain size | mm | 1.7-2.5 | 2.0-3.0 | |||
Static water adsorption (RH75%,25ºC)% |
≥%wt | 23 | 23 | 23 | 23 | |
Static N2 adsorption (25ºC,760mmHg) |
≥ml/g | 10 | 10 | 11 | 11 | |
Static CO adsorption (25ºC,760mmHg) |
≥ml/g | 30 | 30 | 30 | 30 | |
CH4adsorption | ≥ml/g | 16 | 16 | 16 | 16 | |
Crushing strength | ≥N | 30 | 30 | 40 | 40 | |
Buck density | g/ml | 0.74±0.02 | 0.74±0.02 | 0.74±0.02 | 0.74±0.02 | |
Attrition rate | ≤% | 0.30 | 0.30 | 0.30 | 0.30 | |
Particle qualification | ≥% | 98 | 98 | 98 | 98 |