* Effective size: 0.9-1.1 mm
* Size above 1.7mm: <5%
* Size below 0.425mm : <5%
* Moisture content: <5%
* Iodine number: >1000mg/g
* pH : 6-8
* Hardness: >95% (>98% if possible)
* Ash content: <15 (mg/30ml)
* Bulk Density: 0.47-0.55 g/ml
* Packing: 50L/bag or customized.