Permeation is one of the indexes indicates the barrier properties in material field. In packaging material industry, permeation is used to state and evaluate the barrier property of packaging materials against water vapor, oxygen or other gases, etc.; that is, through the evaluation of water vapor transmission rate (WVTR) testing, oxygen transmission rate (OTR) and other gas transmission rate (GTR) testing of packaging materials, the basic guarantee for product quality and shelf-life period is confirmed. More questions for Permeation, please visit www.labthink.cn for answers.

WVTR is the abbreviation for water vapor transmission rate, which is defined as the constant rate at which water vapor permeates through a specimen film at specified conditions of temperature and relative humidity.

Abstract: as pets are getting more and more popular, the quality control requirements for pet food are much stricter than before. Besides quality safety of pet food itself, the barrier property evaluation of pet food packaging has drawn the attention of pet food manufacturers. Keywords: pet food packaging, barrier property, oxygen transmission rate, OTR, water vapor transmission rate, WVTR, mechanical property, differential pressure permeability tester, water vapor permeability tester, tensile tester, leak tester, seal strength, [...]

Water Vapor Permeation Test System is applicable in water vapor permeation test for plastic films, laminated films, sheets, solar energy back sheets, high barrier materials, foils, OLED, water-proof membranes and bottles, pouches, jars, boxes made of plastic, rubber, paper, glass and metal, as well as medical devices, etc. With water vapor permeation testing, controlling and adjustment of packaging materials can be achieved; application demands can also be satisfied. Water Vapor Permeation Test System conforms to [...]