To determine the water absorption capacity of paper and corrugated cardboard (quick clamping grip) The Cobb testing equipment allows to measure the amount of liquid that penetrates a sheet of paper and cardboard. The definition of the Cobb value for a degree of gluing is the calculation of the weight of water absorbed in a specified time per 1 m2 of paper or cardboard under standard conditions (ISO 535).
• COBB Tester with a quick clamping grip, on a metal base covered with a rubber sheet.
• 200 mm polished metal roller. length, a diameter of 90 mm and a weight of 10 ± 0.5 Kg.
• Non-absorbent soft rubber ring to avoid lateral water seepage.