Qualifier values of 7075 in D09B
Packaging level code (an1..3)
Code specifying a level of packaging.
Level of packing, if it exists, that is immediately subordinate to the intermediate packaging level.
Level of packaging, if it exists, that is immediately subordinate to the outer packaging level.
For packed merchandise, outermost level of packaging for a shipment.
No packaging hierarchy
There is no specifiable level of packaging: packaging is inner and outer level as well.
The packaging level being described is the shipment level.