coal based activated carbon Product Description: Diameter (mm) 1 / 1.5 / 2.0 / 3.0 / 4.0 Length (mm) 4~8 min 90% Iodine No. (mg/g ) min 850 / 900 / 950 / 1000 CTC min (%) 40 / 50 / 60 / 70 / 80 / 90 Ash max (%) 5 / 8 / 10 / 12 Bulk density (g/l) 400~600 Hardness No. min (%) 90 / 95 Moisture content max (%) 2 / 5 This product is made from top grade anthracite coal and charcoal as materials with high technological method. It is in black columnar shape. It has high porosity, large surface area, strong adsorption, excellent mechanical force, easy reactivation and low cost characteristics. It is widely exploited in harmful gas purification, air treatment, industry-feed and potable water purification and solvents recovery. Any specification falls between the ranges above could be reached and any special requirement is negotiable!