The instrument is designed according to GB/T1540-1989 , ISO535 (Cobb paper and cardboard absorbency method), which is used to test the absorbency of paper and cardboard, but not applied to valuate the writing capability of paper and cardboard.

Technical parameters:

1.Test area: (100±0.2)cm2
2.Experimental water: (100±5)ml
3.Roller Length: (200±0.5)mm
4.Roller weight: (10±0.5)kg
5.Size: 395×280mm×400mm
6.Weight: 30kgs