WVTR-E3 Water Vapor Transmission Rate Test System is designed and manufactured based on the infrared sensor method and is applicable to test the water vapor transmission rate of medium and high barrier materials such as plastic films, composite films, sheets, papers and other various materials. • High precision infrared sensor is used to ensure the testing accuracy • Automatic humidity and temperature control to guarantee the stability of the testing environment • All test operations are performed on a computer with testing software. User-friendly interface for easy and simplified operation. • Test data and curves are displayed in the real time • 3 independent test chambers for 3 test samples • Automatic test operation by one-button clicking • Patented pipeline flushing design ensures cleanliness of carrier gas and high testing efficiency • Unique sample leak-proof seal installation technology enhances the seal performance of test chambers • Meeting the requirements of USP 1207 United States Pharmacopoeia Standard for data traceability, rights management and other functions, the computerized system fully meets the needs of the pharmaceutical industry (optional)

Technical Specification Testing Principle The test sample is mounted in the diffusion cell, which is divided into a dry chamber and a controlled humidity chamber. A flow of dry nitrogen sweeps the dry side of the sample, while the dry nitrogen carries the water vapor permeating through the specimen from the controlled humidity chamber to an infrared sensor. This sensor generates proportional electrical signals based on the water vapor concentration. The water vapor transmission rate is determined by analyzing and calculating these electrical signals. For package samples, dry nitrogen flows inside...

Test standard ASTM F1249, ISO 15106-2, TAPPI T557, JIS K7129ISO 15106-3 Configuration Standard Configuration: Instrument, Computer, Testing Software, Communication Cable, Sample Cutter, Vacuum Seal Grease, Printer Optional: Package/Container Test Accessories and Temperature Control Device Note: Air source and distilled water (Prepared by the user) Note: The manufacturer reserves the rights to modify the configurations of the instrument.