Barrier Test
Barrier Test Overview
Fast Results

Ultra Barrier TestHow Long Does a WVTR Measurement Take?

 

  • Measurement time depends on rate of diffusion and lag time.  Multi-layered structures often take longer.

 

  • Rough estimate:  For a film with a WVTR = 0.01 g/(m2-day), the testing will require approximately:

 

 

100 hrsCRDS
100 hrsPermatran (poor accuracy at 0.01)
150 hrsAquatran (requires individual zero)
800 hrsCalcium Test

 

 

 

Test Conditions

 

 

WVTR Measurement, Aquatran Tests

 

WVTR, Calcium Test

 

Back to Top