W3/031 Textile Water Vapor Transmission Testing Machine is based on the gravimetric method and available for the WVTR test of flexible films, sheets and foils. It is equipped with 3 test cups and can test 3 specimens independently.
Principle:
Under a certain test temperature, a constant humidity difference is generated between two sides of the test specimen. The water vapor permeates through the specimen and into the dry side. By measuring the weight changes of the test dish in different time, water vapor transmission rate and other parameters can be obtained.
Standards
ISO 2528, ASTM E96, ASTM D1653, TAPPI T464, DIN 53122-1, JIS Z0208
Features:
Applications:
Technical Specification
Specifications | Film Test |
Test Range | 0.1~10,000 g/m2·24h (standard) |
Number of Specimens | 1~3 with independent test results |
Accuracy | 0.01 g/m2 ·24h |
Resolution | 0.0001 g |
Temperature Range | 15°C (standard) |
Temperature Accuracy | °C (standard) |
Humidity Range | 10%RH~98%RH |
Humidity Accuracy | ±1%RH |
Air Velocity | 0.5~2.5 m/s (customization available) |
Test Area | 33 cm2 |
Specimen Thickness | 3 mm (customization available) |
Specimen Size | 74 mm |
Test Chamber Size | 27 L |
Gas Supply | Air |
Gas Supply Pressure | 0.6 MPa |
Port Size | 4 mm PU Tubing |
Instrument Dimension | 580 mm (L) x 680 mm (W) x 470 mm (H) |
Power Supply | AC (85~264)V (47~63)Hz |
Net Weight | 83 kg |
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