Presto cobb tester is used for fast determination of the quantity of water absorbed by a paper or board in a given time . The Water absorptiveness (cobb value) of a substance is defined as the mass of water absorbed in a specific time by a 1 sq. metre sample of paper, board or corrugated board, under standardised conditions.
Buy best quality Cobb sizing tester
Presto cobb tester is used for fast determination of the quantity of water absorbed by a paper or board in a given time . The Water absorptiveness (cobb value) of a substance is defined as the mass of water absorbed in a specific time by a 1 sq. metre sample of paper, board or corrugated board, under standardised conditions. A cobb test paper contains a cylindrical cobb test platform hanging on a rod with a diameter of 60 mm. The cylinder has a water level indicator at 10 mm and 25 mm height. Inside you will find a rubber pad with a 145 mm diameter for keeping the testing specimen. The hanging structure is always locked from one end at the rod.
