1
Inner
Level of packing, if it exists, that is immediately subordinate to the intermediate packaging level.
2
Intermediate
Level of packaging, if it exists, that is immediately subordinate to the outer packaging level.
3
Outer
For packed merchandise, outermost level of packaging for a shipment.
4
No packaging hierarchy
There is no specifiable level of packaging: packaging is inner and outer level as well.
5
Shipment level
The packaging level being described is the shipment level.