Palladium content,%

0.3±0.*2

0.5±0.*2

1.0±0.*2

Index name

Φ1.5~5.0

Φ1.5~5.0

Φ1.5~5.0

Abrasion rate,%

≤ 0.*5

≤ 0.*5

≤ 0.*5

Bulk density,g/ml

≥ 0.*5

≥ 0.*5

≥ 0.*5

Static water absorption,%

≥ *0.0

≥ *0.0

≥ *0.0

Static normal hexane absorption,%

≥ *2.0

≥ *2.0

≥ *2.0

Specific surface area,m2/g

≥ **0

≥ **0

≥ **0

Compressive strength point contact strength,N/grain

≥ *0

≥ *5

≥ *5

Variation coefficient of resistance to crushing

≤ 0.3

≤ 0.3

≤ 0.3