Dangerous Goods by Road
the above marks shall be placed in three groups:
- manufacturing marks shall be the top grouping and shall appear consecutively in the sequence
given in 6.2.2.7.4 except for the marks described in 6.2.2.7.4 (q) and (r) which shall be adjacent
to the periodic inspection and test marks of 6.2.2.7.7.
- the operational marks in 6.2.2.7.3 shall be the middle grouping and the test pressure (f) shall
be immediately preceded by the working pressure (i) when the latter is required.
- certification marks shall be the bottom grouping and shall appear in the sequence given
in 6.2.2.7.2.
the following is an example of marking a cylinder.
2 distinguishing sign of the state of registration used on motor vehicles and trailers in international road traffic,
e.g. in accordance with the geneva convention on road traffic of 1949 or the vienna convention on road traffic of
1968.