This European Standard specifies the design of a reference raingauge pit. The reference raingauge pit is designed for the liquid precipitation only. The specified details of the pit and the grating, are purposely kept to a minimum in order to allow each raingauge operator latitude in their construction and to suit local conditions.
EN 13798:2010 history
2010EN 13798:2010 Hydrometry - Specification for a reference raingauge pit
2002EN 13798:2002 Hydrometry - Specification for a reference raingauge pit