Cobb Tester
Cobb Tester
The test is used for determining liquid absorptiveness or resilience of treated and untreated papers, boards, fabrics and other sheet materials. The test consists of a test apparatus, its 10- kg roller and blotting paper. The roller method is recommended to insure better consistency and reliability that can be obtained by manual blotting or rubbing the specimen.
Overview
The test is used for determining liquid absorptiveness or resilience of treated and untreated papers, boards, fabrics and other sheet materials. The test consists of a test apparatus, its 10- kg roller and blotting paper. The roller method is recommended to ensure better consistency and reliability which can be obtained by manual blotting or rubbing the specimen.
Specifications
| Test Area | 100 cm2 |
|---|---|
| Weight | 15 kgs |
| With measuring cylinder for pouring 100 ml water | |
| With Non-Corrosive couch roll of 10 Kg | |
| User friendly tilting device | |
Features
- The Cobb sizing test can be used to test absorption or resistance to absorption of water, oil and other liquids.
- A lower Cobb represents superior resistance to humidity changes and hence takes higher time to change to atmospheric moisture.
- The equipment is designed to give a long and trouble free life 60 / 120 Seconds COBB Test for Paper -
- In this test the grams of water absorbed by 1 Sq. Mtr paper surface during flooded contact with 1 cm (0.4 inch) water column for 60 or 120 seconds is found. A lower Cobb represents superior resistance to humidity changes and hence takes higher time to change to atmospheric moisture. 30 Minute COBB Test for Board -In this test the grams of water absorbed by 1 Sq. Mtr board surface during flooded contact with 2.5 cm (1.0 inch) water column for 30 minutes.
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