Benzene Exposure Protection Module
Top loading fuel into a tanker truck presents a real danger of
benzene exposure to the operator. Whilst bottom loading is now
the preferred practice, there are many facilities worldwide still
utilising top loading.
Providing the means to allow drivers to load
a top loading vehicle without standing on the truck barrel during
the actual filling process, while still achieving safety interlocks and
other operational standards, has considerable benefit to
personnel and to the industry.
Exposure to benzene takes place when an operator monitors the
top loading of road tankers whilst standing on top of the truck
barrel. Part of this monitoring responsibility is to ensure there is
no overflow of product from the compartment as a result of
overfilling.
The operator must close a manual "deadman" valve to
shut down the flow when the liquid level reaches the maximum
filling capacity of the compartment. The operator is also required
to ensure the filling arm remains in the correct position during the
loading procedure.