Cobb Tester

For determining the water absorbency of paper, paperboard and similar material. The water absorbency of paper (the cobb value) is defined as the quantity of water absorbed in a given time by one side of a unit area of paper or board placed horizontally under a head of one centimeter of water. Convenient spring loaded sample clamping system presses the cylinder against the sample on the rubber mat so that a leak proof seal is obtained.
The clamping force is adjustable. The cylinder lifts when 2 handle bars are pinched together.

Easy and safe clamping mechanism. The clamping system presses the cylinder against the sample on the rubber mat so that a leak proof seal is obtained and can be tilted with a knob to contact with water.