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COBB Absorption Tester with Sampler
COBB Absorption Tester with Sampler
COBB Absorption Tester with Sampler
COBB Absorption Tester with Sampler
COBB Absorption Tester with Sampler
COBB Absorption Tester with Sampler
COBB Absorption Tester with Sampler
COBB Absorption Tester with Sampler

COBB Absorption Tester with Sampler

Member Details

Cell Instruments Co., Ltd.

Jinan,Shandong,China

Manufacturer

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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.

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. 

Principle

The Cobb value of surface water absorption of paper and paperboard.:

The calculated mass of water absorbed in a specified time by a unit area of paper or board under specified pressure and temperature conditions. It is expressed in g/.

C=G2-G1)×100

C-water absorptiveness

G2-wet mass, in grams, of the test piece

G1-dry mass, in grams, of the test piece

When Cobb value is less than 200250 g/ for single layer, more layers can used.

Technical Data

Metal roller sectional area: 100±0.22

Metal roller diameter: 112.8±0.2mm

Roll height50mm

Blotting paper: 200250g/

Absorption speed: 75mm/10min

Smooth metal roller: length 200±0.5mmmass10±0.5kg

Water volume: 100mm±5ml

Dimension: 480×400×420mm

Weight: 28kg

Standard

GB/T 1540QB/T 1668, ISO 535

Configuration

 

mainframemetal rollerCobb absorption sampler

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