From Wikipedia: Moisture vapor transmission rate(MVTR), also water vapor transmission rate (WVTR), is a measure of the passage of water vapor through a substance. It is a measure of the permeability for vapor barriers.
There are many industries that are critical to humidity control. For example, foods and medicines used in daily life need to be tested for water vapor permeability on the packaging to ensure the safe shelf life of the products on the shelf. Therefore, the quality directors of major manufacturing companies must strictly control the moisture vapor permeability of the packaging, which is an important factor in the quality control of the final product.
GBPI's newly launched W413 Water vapor permeability tester can test any packaging material film, such as test film, integral packaging, PET, PET, EOVH, aluminized packaging, high barrier materials, solar backplanes, sheets, composites Materials, aluminized film, aluminum foil, sheet materials and plastics.
New functions:

1. Adopting state reference materials to calibrate and verify the instruments, ensure the accuracy, universality and authority of the test data.
2.International advanced electromagnetic program step temperature control technology, auto heating and cooling; no need of external accessories. Precision: 0.1℃.

3.Three independent test chambers: With three sensors and each chamber test independently, three same/different samples can be tested at the same time and output three test reports, which improve test efficiency
Complete standards and parameters:

GB/T 26253-2010, YBB 00092003-2015, BS EN ISO 15106-2-2005, ASTM F1249-2013, JIS K7129-2008

GBPI is a professional supplier of packaging laboratory test equipment , with 20 years of experience in research and development of laboratory equipment, high quality products, and can provide customized laboratory equipment for various industries. We have a thousand square CNAS laboratory, providing one-stop experimental testing services for different industries, and our output of experimental reports are scientific and rigorous testing reports.

More communication! More communication! GBPI TESTER is looking forward to communicating and cooperating with more industries. To provide comprehensive technical solutions for your product production upgrade.