UIP technical note on marking of wagons with forced vent valve and vapour return

Guidelines developed by UIP Topical Committee Safety

In the past the marking of wagons with forced vent valves and systems for vapour return were different due to national sector agreements. However, such different markings bear still today the risk for wrong handling and possible damages of tanks.
In order for the operator to load or unload correctly a Tank Wagon a clear marking is necessary.
This UIP Technical Note is drafted by the UIP Topical Committee Safety and provides for a Europe- wide instruction on how to mark Tank Wagons with forced vent valves and vapour return systems.