The Water Vapor Transmission Test of Film Applied in Building Material

1.Testing Instrument
  W3/060 Water Vapor Transmission Rate Tester
2. Specimen

Film Applied in Building Material

3. Introduction to Test
The specimen is thin, soft, easy to adhere and difficult to spread. Thus, when placing, frame is needed to avoid failure.

Frame

4. Testing Process
4.1 Testing Environment:
Place: Labthink Permeability Laboratory
Temperature: 23℃
Relative Humidity: 50%RH
Wind Speed: 2.5m/s
4.2 Testing Process

Prepare the specimen with professional sampler (Fig. 3), and clamp the specimen into the water vapor transmission cup (Fig. 4). Place the clamped cup on to the instrument frame, set the testing index and start testing. The test will automatically end, and the result will be displayed in the software.
5. Testing Results
Film Applied in Building Material    WVTR         1050.1752 g/(m²·24h)