Cobb–Unger oil absorbance test for paper and board
In this test, castor oil is used to evaluate the oil absorbance of a paper or board product. This test can be used to evaluate how well the sample can be used in packing oily foodstuff. In the test, oil is applied on top of the sample with a L&W Cobb sizing tester and the mass of oil that is absorbed by a set time period is expressed as grams per square meter (g / m2).
Food contact materials testing- Suitable sample matrices
- Paper and board
- Minimum sample amount
- Kaksi A4-arkkia
- Typical turnaround time
- 2 weeks after receiving the samples
- Quality system
- Accredited testing laboratory
- Standard
- SCAN P37:77
- Method expert
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