Based on the testing principle of infrared moisture sensors, this analyzer provides high-precision and high-efficiency water vapor transmission rate testing for materials with high and medium gas barrier properties. It is suitable for WVTR testing of various film materials (e.g., plastic films, paper-plastic composite films, co-extruded films, metallized films, aluminum foil composite films, glass fiber/aluminum foil/paper composite films) and sheet materials (e.g., PP sheets, PVC sheets, PVDC sheets, metal foils, rubber sheets, silicon wafers) used in fields such as food, pharmaceuticals, medical devices, daily chemicals, photovoltaics, and electronics. It also performs related water vapor permeability tests on these materials.
- Lower Acquisition Cost: Features a lower initial investment threshold, making it an ideal and pragmatic choice for budget control and meeting basic testing needs.
- Simple Operation and Maintenance: Utilizes an integrated compact design, enabling more convenient and efficient daily sample loading, calibration, and maintenance.
- Meets Core Requirements: Delivers the same level of testing accuracy and standard compliance as three-chamber models, fully capable of handling routine quality inspection and R&D tasks.
- Lower Cost Per Sample: Effectively reduces equipment and consumable costs per sample during batch testing, offering superior long-term cost efficiency.
- High Testing Efficiency: Three chambers operate in parallel under identical conditions, allowing three samples to be tested simultaneously, significantly shortening the testing cycle.
- Excellent Data Comparability: Samples are tested synchronously in completely consistent temporal and environmental conditions, resulting in more scientific and reliable comparative results.
Following the classic gravimetric principle, this analyzer creates a specific humidity gradient across the two sides of a sample at a constant temperature. Water vapor permeates through the sample in a test dish into the drier side, and the water vapor transmission rate and other parameters are determined by measuring the weight change of the dish over time. It is suitable for testing the water vapor transmission rate of plastic films, composite films, sheets, and packaging containers like plastic bottles and bags in ambient air.
- Employs the classic direct gravimetric testing principle, complies with major global standards, and delivers authoritative and reliable test results.
- The testing process and results are reflected as weight changes. The principle is intuitive, and operators can master it without extensive training.
- Fully meets the basic moisture permeability testing requirements for films and packaging containers, serving as a reliable tool for routine laboratory testing.
- Three testing chambers operate synchronously, processing three samples at once, tripling the efficiency of the traditional gravimetric method.
- Multiple samples are tested simultaneously under identical temporal and environmental conditions, providing more direct, scientific, and highly comparable results.
- The three testing chambers can operate and be monitored independently, and each sample can generate a separate test report for clear management.
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