Water Vapor Transmission Rate also called WVTR is an important packaging material property and can be directly related to shelf life and packaged product stability. ASTM F11249 Tester use an infrared sensor detector for determining the rate of water vapor transmission through flexible barrier materials. The method is applicable to sheets and films thickness up to 3 mm (0.1 inch), consisting of single or multilayer synthetic or natural polymers and foils, including coated materials. It provides for the determination of water vapor transmission rate (WVTR).Nowadays, ASTM F1249 with Modulated Infrared Sensor is the highest precision testing water vapor transmission rate for flexible high barrier packaging material.

GBPI focus on water vapor transmission rate tester design and manufacturing over 16 years history. Our W401 Water vapor permeability tester installed with infrared sensor detector helping high barrier flexible packaging material manufacturers measure their materials WVTR correctly. It comply to home and abroad testing standard to help our customers to meet their local and international testing requirements. Comply to testing standard ASTM F1249,W403 WVTR Analyzer is very popular between home and abroad customers, below is simple introduction of its technical specifications for your reference.

Advanced technology

1.  Humidity control: Dual gas flow method (dry gas and humid gas), high precision (1%RH) and stable flow.

2. Temperature control: International advanced electromagnetic technology, program controlled, auto heating and cooling; no need of external accessories. Precision: 0.1℃.

3.  Carrying cutting-edge ARM controlling system, can run independently without computer.

High efficiency

1  With three different test modes of high, medium and lower barriers, can test films with different barrier property.

2  Measurement precise up to0.001 g/m2•24h, can test high barrier materials, such as aluminum foil.

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.

4  By adding adaptive accessory, can test water vapor transmission of various containers such as bag, bottle, can and bowl.

Any questions about water vapor transmission rate test standard ASTM F1249 and our GBPI W401 Infrared Sensor water vapor permeability analyzer please feel free to directly leave us a message or call us.