The cup method allows for the simultaneous automatic weight measurement of six samples of low, medium, and high water vapor barrier materials, providing high efficiency in water vapor permeability.
The WVTR-W6 water vapor transmission rate testing system provides high-efficiency water vapor transmission rate tests through fully automated weight measurement of 6 samples simultaneously, based on the cup method (weight method), across a wide testing range for low, medium, and high water vapor barrier materials. It is suitable for measuring the water vapor transmission rates of various materials, including plastic films, composite films, medical applications, and construction materials. By efficiently testing water vapor transmission rates, it enables control of the technical indicators of materials and allows for meeting production requirements at low costs. In addition to the simultaneous measurement of 6 samples, devices for simultaneous measurement of 3 samples and 12 samples are also available. Measurement Principle Based on the weight measurement determination method, a constant humidity difference is generated on both sides of the test piece at a specific test temperature. Water vapor permeates through the specimen to the dry side. By measuring the weight change of the test dish at different times, the water vapor transmission rate and other parameters can be obtained. Standards Compliance JIS Z0208, ASTM E96, ASTM D1653, GB 1037, GB/T 16928, YY/T0471, TAPPI T464, ISO 2528, YBB 00092003
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basic information
Product Features Cutting-edge Technology Two testing modes: Desiccant Method (Dry Cup Method) and Water Method (Wet Cup Water Method) Equipped with a high-precision measurement system to enhance system sensitivity and stability New generation circular structure test chamber design for more uniform temperature and humidity distribution Wide-ranging, high-precision, automatic temperature/humidity control to meet various testing needs Standard air velocity prevents condensation of water vapor on the test plate and ensures a consistent humidity difference between the inside and outside of the test plate Self-developed regular measurement method and automatic zeroing before measurement guarantee the accuracy and uniformity of test data High-speed access calibration port for convenient temperature and humidity adjustments Reference film or standard weight for fast and accurate calibration Precision mechanical design not only ensures ultra-high precision of the system but also greatly improves testing efficiency High-end Configuration 11.6-inch tablet for a comfortable and smooth operating experience User-friendly Windows operating interface for easy operation The testing process is automatically recorded, and process data is reproducible.
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Applications/Examples of results
Application Examples Typical Examples - Films: Plastic films, plastic composite films, paper-plastic composite films, co-extruded films, aluminum-coated films, aluminum foil composite films, glass fiber aluminum foil paper composite films, and many other film materials. - Sheets: PP, PVC, and PVDC sheets, metal foils, rubber pads, and other sheet materials. - Textiles and Non-woven Fabrics: Textiles and non-woven fabrics for diapers, sanitary products, etc. - Paper and Paperboard: Tobacco, paper-aluminum-plastic composite films, and other aluminum-coated papers for paper and paperboard. Application Examples - Inverted cup method: An inverted cup is required. - Measurement of water vapor permeability for the following materials: Artificial skin Cosmetics Sterile films Sterile wound protection films Medical plaster and protective clothing materials LCDs and related sheets Solar back sheets and related sheets Coating films Biodegradable films (such as starch-based packaging films)
Detailed information
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WVTR-W6 Water Vapor Transmission Rate Tester The WVTR-W6 Water Vapor Transmission Rate Testing System provides high-efficiency water vapor transmission rate testing through fully automated weight measurement of 6 samples simultaneously, based on the cup method (gravimetric method), across a wide testing range for low, medium, and high water vapor barrier materials. It is suitable for measuring the water vapor transmission rate of various materials, including plastic films, composite films, medical applications, and construction materials. By efficiently testing the water vapor transmission rate, it enables control of the technical indicators of materials and meets production requirements at a low cost.
Company information
Aivic Research was established with the aim of contributing to the improvement of healthcare by helping to enhance the data accuracy of dissolution testing through the provision of excellent dissolution testers and dissolution tester inspection services, as well as introducing the latest dissolution testing information by utilizing various pipes from overseas, thereby supporting the development of the pharmaceutical industry in Japan.
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