Water absorptiveness of paper or paperboard with the Cobb method
The test measures the water aborptiveness of sized paper and board. The method is not suitable for grades with grammage less than 50 g/m2 or embossed paper. It is also not suitable for highly water absorbing papes, such as blotting papers. The absorption time can be chosen by the customer. The result will be expressed as absorbed water per surface area g/m2.
Mechanical testing- Suitable sample matrices
- Paper or paperboard with basis weigth over 50 g / m2
- Typical turnaround time
- 2 weeks after receiving the samples
- Quality system
- Accredited test method, Accredited testing laboratory
- Device families
- Standard
- ISO 535
- Method expert
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