ISO 535 COBB absorption tester is for the measurement of surface water absorption of paper and paper board. Loose paper, e.g. newsprint, unsized paper, e.g. blotter and other high absorbability paper is not for this tester.

ISO 535 COBB absorption tester technical Data

Metal roller sectional area: 100±0.2㎝2

Metal roller diameter: 112.8±0.2mm

Roll height: 50mm

Blotting paper: 200～250g/㎡

Absorption speed: 75mm/10min

Smooth metal roller: length 200±0.5mm, mass10±0.5kg.

Water volume: 100mm±5ml.

Dimension: 480×400×420(mm)

Weight: 28kg

ISO 535 COBB absorption tester Standard

ISO 535, GB/T 1540, QB/T 1668