CHINA COB100 Cobb Value Tester

COB100

Cobb value Tester

Introduction

This instrument is designed according to the basic parameters and requirements stipulated in GB/T1540-1989 Determination of water absorption of paper and cardboard (Kob method). This standard applies to the determination of the water absorption of various paper or board surfaces. But it is not suitable for accurately evaluating the writing performance of paper or cardboard.

Instrument principle

Paper and cardboard surface water absorption (Cobb) value: the amount of water absorbed by the surface of paper and cardboard per unit area under a certain pressure and temperature within a specified time, in g/㎡. The specific formula is as follows: C=(G2-G1)×100. In the formula: C-cobo water absorption value; G2-sample mass weighed after water absorption; G1-sample mass weighed before water absorption. 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 (Cobb) test method among various methods of absorption test, so it is also called the Cobb Absorption Tester.

Packing list：Water Absorption Tester x1, Paper Quantitative Sampler 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.