Table 15 Parameters \(\mathrm{a}\) and \(\mathrm{b}\) for the exponential function in Eqs. (7) and (8) for the total coating system of the icon (Itot specimens)
Total permeability/permeance | \({\delta }_{tot}\)=\(a\cdot {e}^{b\cdot RH}\) | \({W}_{tot}\)=\({a}_{W}\cdot {e}^{{b}_{W}\cdot RH}\) |
|---|---|---|
\(a / {a}_{W}\) | \(1.05\cdot {10}^{-14}\frac{\mathrm{kg}\cdot \mathrm{m}}{\mathrm{Pa}\cdot {\mathrm{m}}^{2}\cdot \mathrm{s}}\) | \(1.25\cdot {10}^{-11}\frac{\mathrm{kg}}{\mathrm{Pa}\cdot {\mathrm{m}}^{2}\cdot \mathrm{s}}\) |
\(b/ {b}_{W}\) | \(5\) | \(5\) |