How to use Payne Permeability Cups
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Prepare the film to be tested using a film applicator and suitable test chart. |
Disassemble the permeability cup. |
Fill with required liquid (typically water) or dry desiccant (absorbent). |
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Place the film on to the cup and reassemble making sure the gasket is fitted. |
Weigh the prepared permeability cup and record the result (in grams). |
Leave for appropriate time, re-weigh, calculate the change in mass (∆m) & water vapour transmission rate. |
- Diện tích: 30 cm2; 4.65 inches2
- Thể tích: 50 cm3; 3.05 inches3
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