COBB tester

Principle

The Gurley-Cobb  Tester procedure determines the quantity of water absorbed by a simple of paper or other sheet material in a specified time and under standardized conditions. Other liquids such as ink, beverages, oil and water based solutions may be used instead of water. The standard area is one hundred square centimeters , info which 100cc of liquid are poured to reach a specific height of 1 cm. for smaller samples, proportionately smeller areas can be tested.

Description

The Gurley-Cobb Sizing Tester consists of a hollow metal cylinder or ring ; a metal base plate with a clamping device lo hold the ring against the sample end a Neoprene mat. Neoprene gaskets also are supplied to seal off the cylinder when testing uneven materials where an ungasketed seal is difficult lo maintain. A critical com­ponent of this lest is a solid stainless steel roller having o smooth face 20cm wide and weighing 10.0+ 0.5kg.

• BRAND : Gurley
• MODEL : 4180AN
• SPECIFICATION : – The Gurley-Cobb sizing test can be used to test absorption or resistance to absorption of water, oil and other liquids.
  – The complete kit consists of the Cobb test apparatus, a 10 kg roller and a supply of blotting paper.
  – Metal Ring: 100, 25 or 10 cm2
  – Roller: 20 cm wide face
• STANDARD

ISO 535
TAPPI T205

More Information :

Brochure Download : Download link :4180AN

More Info : https://www.gurley.com/absorption

Pulp and Paper

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