W3/230 Water Permeability Apparatus utilizes the infrared sensor method to test the WVTR of flexible films, sheets, foils and packages. It can test 3 specimens with independent results.
Principle:
Infrared method is used by W3/230 Water Vapor Transmission Rate Test System: The test specimen is mounted in the diffusion cell, which is subsequently divided into a dry chamber and a controlled-humidity chamber. The dry side of the specimen is swept by a flow of dry nitrogen, and the water vapor permeating through the specimen from the controlled-humidity chamber is carried by dry nitrogen to the infrared sensor where proportion electrical signals will be generated. The water vapor transmission rate is obtained by analyzing and calculating the electrical signals. For package samples, dry nitrogen flows inside the package, and moisturized nitrogen flows outside.
Standards:
Features
Technical Specification
Specifications | Film Test | Package Test (Optional) |
Test Range | 0.01 ~ 40 g/m2·24h (Standard) | 0.0001 ~ 0.2 g/pkg·d |
0.1 ~ 1000 g/m2·24h (Optional) | ||
Specimen Size | 108 mm x 108 mm | Temperature control for one package test: < 180 mm, Height < 380 mm |
Temperature control for 3 package test: < 100 mm, Height < 380 mm | ||
No size limitation for tests without temperature control device | ||
Number of Specimen | 3 with independent test results | |
Specimen Thickness | 3 mm | / |
Test Area | 50 cm2 | / |
Temperature Range | 15C ~ 55°C (standard) | |
Temperature Accuracy | ±0.1°C (standard) | |
Humidity Range | 0%RH, 35%RH ~ 90%RH, 100%RH | |
Humidity Accuracy | ±1%RH | |
Carrier Gas | 99.999% high-purified nitrogen (outside of supply scope) | |
Flow of Carrier Gas | 0 ~ 200 mL/min | |
Pressure of Carrier Gas | 0.28 MPa/40.6 psi | |
Port Size | 1/8 inch copper tubing | |
Instrument Dimension | 690 mm (L) x 350 mm (W) x 360 mm (H) | |
Power Supply | AC (85 ~ 264)V (47 ~ 63)Hz | |
Net Weight | 70 kg |
Application
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