Packaging, IBCs, Large Packagings, Tanks and Vehicle Equipment
Packaging and IBCs
ADR requires packaging to be of a design type tested and marked (UN packaging code), and to be used within its tested limits. The UN mark shows the packaging code, packing group, year of manufacture and the competent authority. Intermediate bulk containers (IBCs) are rigid or flexible, generally for larger volumes, and have their own UN marks and periodic inspection rules. Large packagings are for articles and packages above IBC size. Traps: using a packaging beyond its packing group, ignoring the date of manufacture for certain plastics, and assuming an IBC is always reusable without inspection.
Tanks and vehicles
Tank vehicles, demountable tanks and battery vehicles must meet tank codes and inspection intervals. The tank code in the Dangerous Goods List tells you which tank is permitted. Vehicles carrying dangerous goods must meet the ADR vehicle requirements: electrical equipment, fire extinguishers, and for some classes additional equipment such as a safety cab or anti-lock braking. A frequent question asks which tank code is allowed for a given UN number; the answer is always in the Dangerous Goods List, not in memory.
Equipment checks
Before loading, the driver checks that packaging is undamaged, closures tight, and marks legible. Leaking or damaged packaging must not be loaded. Vehicle equipment includes wheel chocks, warning signs, and for tanks, earthing where required.
Worked rule of thumb
Match three things: the substance's packing instruction or tank code, the packaging or tank UN mark, and the packing group. If any one does not match, the load is non-compliant.