PERMATRAN-W Model 3/34G
The PERMATRAN-W Model 3/34G can measure the Water Vapor Transmission Rate (WVTR) of film samples and it uses a generated RH for the Test Gas. To test a film sample it is prepared and mounted in a Test Cell. The test cell is used to maintain the film sample at a specified temperature (10° C to 40° C ± 0.2° C). The Test Gas supplied to the test cell can be 100% RH or at a specified RH from 5% to 90% ± 3 RH.
The test Range, for a 50 cm2 film is 0.005 to 100 g/(m2 • day)
