Parameter	Unit	Product specification
Size	mm	1-3	3-5	4-6	5-7
Bulk density	g/cm3	0.76--0.85	0.65--0.72	0.64--0.70	0.64--0.68
Surface area	m2 /g	200--260	200--260	200--260	200--260
Pore volume	cm3/g	0.40--0.46	0.40--0.46	0.40--0.46	0.40--0.46
Crush Strength	N/granule	45 min	70 min	80 min	100 min
Water adsorption capacity	%	52 min	52 min	52 min	52 min
Initial stage abrasion rate	%	0.35 max	0.3 max	0.3 max	0.25 max
Water content	%	1.5 max	1.5 max	1.5 max	1.5 max