The publication describes the results of the investigation of a gas me
ter G 65 with a turbine wheel radially driven. In addition to the expe
rimental activities, the paper presents the meter's working principle
which differs from the well-known instrument patterns of axially drive
n turbine meters. Conditions ape recommended under which the radial tu
rbine gas meter can be used as a transfer standard. Its suitability is
documented by the results of an intercomparison between the standard
rest rigs at both of Switzerland's and Germany's national metrology in
stitute, which was carried out using such a meter.