The functional sample Diffusion Tube is instrumental to the experimental assessment of water vapour transport properties of porous building materials in non-stationary state of water vapour flux.
The functional sample Diffusion Tube is instrumental to the experimental assessment of water vapour transport properties of porous building materials in non-stationary state of water vapour flux. (en)
Tube consists of two airtight plexiglass chambers separated by the measured sample. Each of the chambers is provided with probes for relative humidity measurement working on capacitive principle.