Principles of the conversion of a measured electrical signal t o the relative humidity units have been worked out according t o a theory of the method and the measuring system for water vapour permeability through packaging films measurement. The method and the system were based on sorptive sensor r
A new method for the determination of water-vapour permeability of polymer films based on the evaluation of the heat of evaporation
✍ Scribed by L. Hes; C.A. Bernardo; M.A. Queirós
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 800 KB
- Volume
- 15
- Category
- Article
- ISSN
- 0142-9418
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📜 SIMILAR VOLUMES
Principles o f an analysis o f t h e inertia o f a sorptive sensor used for transient measurements of water vapour permeability through packaging films have been developed. The construction of t h e measuring cell and t h e method of measurement o f water vapour permeation through packaging films ha
## Abstract A new apparatus for the determination of vapor permeability of volatile liquid substances through polymer membranes has been described. The permeability of the vapor is calculated from the measurements of the depression rate of the liquid meniscus in a calibrated capillary tube. The con