Blaines Air Permeability Apparatus
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Blaine’s Air Permeability Apparatus: As per IS:4031, 5516, 1727 & 4828, ASTM C-204, BS:4359 Part II. The apparatus is used for determining the fineness of cement in terms of specific surface expressed as total surface area in square centimeters per gram of cement. This is a variable flow type air permeameter.