Ref. Standards : IS: 1727, 4031, 4825
To determine the fineness of cements, pozzolanas and other powdery materials, various international specifications recommend the use of “specific area” method. In the instrument described below, air permeability method is used to determine the specific surface as total surface area in cm2/g of material. Air Permeability Apparatus Blaine Type, IS:5516.The equipments consist of Permeability cell, U-Tube Manometer, perforated Metal Disc, Plunger, Rubber stopper, rubber Tube, 20cm long, Filter paper Discs, Dibutylphthalate liquid 100ml bottle,punch, Non-perforated Disc, Suction Bulb.
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