the gas sensors and the LCR, the data of the calibration experiment
will be considered. In a first instance, the inactivation kinetics
of gaseous hydrogen peroxide on B. atrophaeus spores has been
studied and the impact of three influencing factors, namely the
H2O2 concentration, humidity and gas temperature, on the microbial
inactivation was analysed in detail. One possibility for establishing
a correlation is to compare the results by reference to the
parametric process variables. Thus, for example, it was shown that
for H2O2 concentrations above 2% v/v the LCR was increasing linearly
with the H2O2 concentration, regardless of the gas temperature
or humidity. On the other hand, the H2O2 concentration can be
determined accurately by means of the calorimetric H2O2 sensor. In
this way, a correlation between the signal of the calorimetric gas
sensor and the LCR may be established. Recently, Kirchner et al.