The methods described in the guideline apply in particular for checking Stage II vapour recovery systems during normal operation of the filling station, as the vapour recovery rate can be determined during any filling process. Since petrol flow is required when using these methods, they are less suitable for maintenance and adjustment works because of the large amounts of petrol obtained. The methods are primarily intended for checking Stage II vapour recovery systems by the relevant authorities and experts. Furthermore, wet methods are used as reference methods.
VDI 4205 Blatt 2-2003 history
2003VDI 4205 Blatt 2-2003 Measurement and test methods for the assessment of vapour recovery systems on filling stations - Wet method
2002VDI 4205 Blatt 2-2002 Mess- und Pruefverfahren zur Beurteilung von Gasrueckfuehrunggssystemen an Tankstellen - Nassmessverfahren