Paper & Packaging 
Testing Machine
Manufacturer

COBB

TAPPI T 441 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, Cobb and other investigators. For testing unsized and absorbent paper or paperboard, see TAPPI T 432 “Water Absorbency of Bibulous Paper.”

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