Dangerous Goods by Road
service equipment shall be so arranged as to be protected against the risk of being wrenched off or
damaged during handling and carriage. when the connection between the frame and the tank or the
jacket and the shell allows relative movement, the equipment shall be so fastened as to permit such
movement without risk of damage to working parts. the external discharge fittings (pipe sockets,
shut-off devices), the stop-valve and its seating shall be protected against the danger of being
wrenched off by external forces (for example using shear sections). the filling and discharge devices
(including flanges or threaded plugs) and any protective caps shall be capable of being secured against
unintended opening.