A typical system for corrosion protection is the drying method. A film is encircling the product – in this case a machine. Inside you try to maintain a climate below 50% humidity. The packaging is done in a room with 15 C0 and 60% humidity and after packaging the product is going to be stored outside at 5 C0 and 70% humidity. For evaluation of this case you need information on how much water can be solved in air under different temperature.