YINUO YN-COB100 COB absorptivity Tester paper surface absorption weight Tester COBB method 100cm ²

YN-COB100

COB absorbency Tester

Paper and Cardboard surface water-absorption test of conventional equipment, test area (100 +/- 0.2) cm ², test area (122.718 +/- 0.2) cm ², liquid height 10mm, test water consumption 100ml +/- 5ml, roller length 200 +/- 0.5mm, roller mass 10 +/- 0.5kg.

use

Paper and cardboard absorbency Tester is a conventional instrument for water absorption test of paper and cardboard surface, also known as paper surface absorption weight Tester. This instrument uses the Cobb test method among various methods of absorption test, so it is also called the Cobb absorbability Tester.

This instrument is mainly used to determine the surface water absorption of sized paper and paperboard including corrugated board. This instrument only measures the water absorption of paper and cardboard surface, but it is not suitable for accurately evaluating the writing performance of paper or cardboard.

The definition of paper and cardboard surface water absorption (Cobb) value: the amount of water absorbed by the surface of paper and cardboard per unit area under certain pressure and temperature within a specified time, in g/㎡. The specific formula is as follows: C=(G2-G1)×100.

In the formula: C —— water absorption value;

G2 - the mass of the sample weighed after absorbing water;

G1——The mass of the sample weighed out before absorbing water.

Packing list：host X1, manual X1, certificate X1, warranty card X1

[Note]Because the manufacturer's packaging may be updated or upgraded, the detailed packaging list shall be subject to the latest standard configuration of the manufacturer.