Special care has been taken to guarantee the same soak time in the chamber, meaning that different heating and cooling duration have been adapted for each run since the mean temperatures and ranges vary. As a consequence, the time spent in the chamber for a single cycle is rigorously the same for any condition: 5 hours and 7 minutes. Starting conditions are also set accordingly, so that the time needed to reach the first set point, from ambient conditions, remains constant. It is to be noted that if the sample has to be removed from the chamber before the end of the maximum number of cycles, the chamber is opened only when the inside temperature matches the ambient, in order not to open it when the inside temperature is smaller than the ambient (risk of condensation and icing).