The most frequently applied measures to limit the charge accumulation on liquids to
a safe level are the increase of the conductivity in case of liquids with a very poor
conductivity such as e.g. the hydrocarbon liquids, or limiting the flow velocities of
liquids in pipes. In special situations in industry it is, however, not possible to limit the
charge accumulation on the liquid to a safe level. In these cases exclusion of the
flammable atmosphere with inert gas blanketing is required. A typical example of
this kind of situation is the handling and processing of multiple phase liquid systems of
poor conductivity.
It is strongly recommended to use guidance for the safe handling of flammable
liquids in different industrial situations. This guidance can be taken from the
comprehensive literature in this field (1-9) or in the form of expert advice.