Classic	Extra	Premium
Size	0-6mm	2-6mm	2-6mm
Cleaning	-	1 time	2 times
pH	6.5-8.5	6.5-8.5	6.5-8.5
Density	2.1-2.3 g/cm3	2.1-2.3 g/cm3	2.1-2.3 g/cm3
Bulk density	95 kg/m3 +- 20%	85 kg/m3 +- 20%	75 kg/m3 +- 20%
Packing	Big bags	Big bags	Big bags