## 4 Result Analysis and Discussion  
The analysis and comparison of the individual methods are based on the data measured by each method. Figures 8-10 show the averaged values of the equilibrium points forming the sorption and desorption isotherms. The measurement results reached applying the DVS method were projected onto the graph in the form of envelope curves. They are formed by lines connecting the minimum and maximum values of all the performed measurements. The area between the curves is highlighted blue and it determines the possible equilibrium states of the material. Data obtained using the conventional methods were projected onto the same graph in contrast to the results of the dynamic sorption method. The results obtained applying individual methods are approximately identical and with same tendencies. They differ significantly in the endpoints, representing the maximum value. In the legend, the sorption curves are denoted by the prefix S, and the desorption curves are denoted by the prefix D. The results obtained from the desiccators with salt solutions are denoted by the suffix DE. The suffix EC indicates the results obtained from the environmental chamber. The DVS system uses the DVS suffix for its results and the desiccators with sulfuric acid solutions use the SA suffix. Figure 8 shows the results of the AC-4 sample measurements. The values obtained by the individual methods have small differences between each other. The conventional methods closely follow the curves of the DVS method, within the range of 50 to 85% relative humidity. The biggest deviation occurs in the area of high relative humidity. While the  
\begin{table}
\begin{tabular}{c c c c c c c c c c c c c} \hline \hline \multirow{2}{*}{**Density**} & \multirow{2}{*}{\ \begin{tabular}{c} **Relative** \\ **Humidity** \\ \end{tabular}  } & \multicolumn{4}{c}{**Measurement 1 and 2**} & \multicolumn{2}{c}{**Measurement 3**} & \multicolumn{4}{c}{**Average**} & \multirow{2}{*}{ \begin{tabular}{c} **Standard** \\ **Deviation** \\ \end{tabular}  } \\ \cline{3-13}  & & **S** & **D** & **S** & **D** & **S** & **D** & & **S** & **D** & & **S** & **D** \\ \hline \multirow{11}{*}{AC-4} & 0 & 0.000 & 0.000 & 0.000 & 0.000 & 0.000 & 0.570 & 0.000 & 0.000 & 0.190 & 0.570 & 0.000 & 0.269 \\  & 20 & 0.636 & 0.665 & 0.644 & 0.672 & 0.660 & 1.096 & 0.636 & 0.647 & 0.811 & 1.096 & 0.010 & 0.202 \\  & 40 & 0.901 & 1.043 & 0.910 & 1.029 & 0.958 & 1.479 & 0.901 & 0.923 & 1.184 & 1.479 & 0.025 & 0.209 \\  & 60 & 1.185 & 1.438 & 1.196 & 1.383 & 1.252 & 1.896 & 1.185 & 1.211 & 1.572 & 1.896 & 0.029 & 0.230 \\  & 70 & 1.400 & 1.761 & 1.412 & 1.669 & 1.461 & 2.198 & 1.400 & 1.424 & 1.876 & 2.198 & 0.026 & 0.231 \\  & 80 & 1.765 & 2.297 & 2.775 & 2.120 & 1.866 & 2.635 & 1.765 & 1.802 & 2.351 & 2.635 & 0.045 & 0.214 \\  & 85 & 2.120 & 2.781 & 2.118 & 2.536 & 2.185 & 3.103 & 2.118 & 2.141 & 2.807 & 3.103 & 0.031 & 0.232 \\  & 90 & 2.836 & 3.620 & 2.814 & 3.274 & 2.699 & 3.970 & 2.699 & 2.783 & 3.621 & 3.970 & 0.060 & 0.284 \\  & 95 & 4.930 & 5.705 & 4.780 & 4.930 & 3.671 & 5.510 & 3.671 & 4.460 & 5.382 & 5.705 & 0.561 & 0.329 \\ \hline \multicolumn{2}{c}{duration (hours)} & \multicolumn{4}{c}{64} & \multicolumn{4}{c}{64} \\ \hline \hline \multicolumn{13}{c}{mass} & \multicolumn{4}{c}{36.6564 mg} & \multicolumn{4}{c}{36.3126 mg} & \multicolumn{4}{c}{36.3126 mg} \\ \hline \multirow{11}{*}{AC-5} & 0 & 0.000 & 0.000 & 0.003 & 0.003 & 0.000 & 0.468 & 0.000 & 0.000 & 0.001 & 0.157 & 0.002 & 0.220 \\  & 20 & 0.541 & 0.568 & 0.550 & 0.573  
upper curve values of the desiccator methods end at the value determined by the DVS method, the samples from the climate chamber contaminated with condensation reach values of the level of the desorption envelope curve. Figure 9 shows the results for the AC-5 sample measurements. Most of the results show identical tendencies, and the envelope of sorption and desorption in the region of 50 to 85% relative humidity approximately copies the tendencies observed performing with conventional methods.