Ключевые слова:
Specimen preparation, Permeability measurement, Creasing tests, Testing conditions, Test specimens, Coated fabrics, Polymers, Packaging materials, Sheet materials, Rubber coatings, Laminates, Sealing wax, Mathematical calculations, Plastics, Flexible materials, Water-vapour tests, Test equipment, Plastics and rubber technology, Water vapour, Films (states of matter), Gravimetric analysis