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Gurley Cobb Absorption Testers

Gurley Cobb Absorption Testers
Gurley Cobb Absorption Testers
Product Code : 35
Brand Name : Gurley
Product Description

Gurley Cobb Absorption Testers

The standard for liquid absorption testing

Purpose of list

Water absorptiveness of paper board or other materials is a function of various characteristics such as sizing, porosity, etc. The Gurley-Cobb sizing test can be used to test absorption or resistance to absorption of water, oil and other liquids.

Principle

This procedure determines the quantity of water absorbed by a sample 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 (cm2), into which 100cc of liquid are poured to reach a specific height of 1 cm. For smaller samples, proportionately smaller areas (25 and 10 cm2) can be tested.

Description

The Gurley-Cobb Sizing Tester consists of a hollow metal cylinder or ring (100, 25 or 10 cm2 inside area); a metal base plate with a clamping device to hold the ring against the sample and a Neoprene mat. Neoprene gaskets also are supplied to seal off the cylinder when testing uneven materials where an ungasketed seal is difficult to maintain. A critical component of this test is a solid stainless steel roller having a smooth face 20cm wide and weighing 10.0+ 0.5kg.

Also required for the test are a 100ml graduated cylinder, a balance with sensitivity of 0.01g or better, blotting paper and a timer or stopwatch.

Models & Accessories

Model Description
4180AN Gurley-Cobb Sizing tester with 100 sq cm. cylinder
4180BN Gurley-Cobb Sizing tester with 100, 25 and 10 sq cm. cylinders
4180CN 4180-A kit with CX00856 Precision Roller and AX05022 Blotting
Paper, 250 sheets
4180DN 4180-B kit with CX00856 Precision Roller and AX05022 Blotting
Paper, 250 sheets

 

Part # Description
CX00856 Gurley Precision Roller, 10± .5 kg
AX05022 Blotting paper, 250 sheets
AX05023 Blotting paper, case of 2,250 sheet


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