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TAPPI T 441 om-13 Water Absorptiveness of Sized (Non-bibulous) Paper, Paperboard, and Corrugated Fiberboard (Cobb Test)
standard by Technical Association of the Pulp and Paper Industry, 2013
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1.1 This method describes a procedure for determining the quantity of water absorbed by nonbibulous paper, paperboard, and corrugated fiberboard in a specified time under standardized conditions. It is based on studies by Cobb and Lowe (1), Cobb (2) and other investigators (3, 4).1.2 For testing unsized and absorbent paper, or paperboard, see TAPPI T 432 "Water Absorbency ofBibulous Paper."