The letter indicates the packaging group (I, II, III) for which the packaging is approved. The number describes the packaging gross maximum weight (including the contents). With liquid products, this indicates the maximum product density.
This letter describes the type of substance. For solids, “S” must be indicated; for liquids, it is necessary to specify the test pressure.
The last two digits indicate the year of manufacture.
The letter indicates the country in which the UN approval was issued, with “A” meaning Austria.
This defines the testing centre which approved the container.
The last digits indicate the approval number assigned by the testing centre.