... ± 0.021.0± 0.02Index nameΦ 1.5~5.0Φ 1.5~5.0Φ 1.5~5.0Abrasion rate, %≤ 0.25≤ 0.25≤ 0.25Bulk density, g/ml≥ 0.65≥ 0.65≥ 0 ... .65Static water absorption, %≥ 20.0≥ 20.0≥ 20.0Static normal hexane absorption, %≥ 12.0≥ 12.0≥ 12 ... ≤ 0.3≤ 0.3≤ 0.3Granularity, %≥ 96≥ 96≥ 96Water content of packed product, %≤ 1.5≤ 1.5≤ 1.5 0.25%,0.5%,1%,5%,10%,15 ...