Water vapor transmission rate (WVTR) of textiles
Water vapor transmission rate testing can be used to evaluate the breathability of textiles. This test, performed according to ASTM E96, measures the amount of water vapor that passes through the fabric in a controlled environment.
The standard conditions are 20 °C and 65% relative humidity. The result will be reported in g/m2/day.
For a more comprehensive evaluation of technical textiles' barrier properties, this test can be combined with the ISO 811 resistance to water penetration test and the ISO 9237 air permeability measurement.
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More information about the method:
Water vapor transmission rate (WVTR)- Suitable sample matrices
- Textiles, fabrics, nonwovens
- Typical turnaround time
- 3 weeks after receiving the samples
- Available quality systems
- Accredited test method
- Device types
- Standard
- Method expert
Packaging
Paper and board
Polymers and plastics
Textiles and furniture
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