These Bags are designed to handle products that the United Nations considers hazardous material, let's take a look into the further specifications of UN FIBC Bags and how to handle them:
International transport of dangerous goods in Bulk Bags regulated by a number of international codes based on the United Nations Recommendations on the Transport of Dangerous Goods (also known as the Orange Book).
This divides bulk containers into 6 categories namely: metal, flexible, rigid plastics, composite, fibreboard and wooden.
 
There are four types of FIBCs made from woven polypropylene for dangerous goods:
13 H 1 - Woven plastics without coating and without a liner.
13 H 2 - Woven plastics, coated and without a liner.
13 H 3 - Woven plastics, uncoated and with liner.
13 H 4 - Woven plastics, coated and with liner.
UN Bags are also classified according to the Hazard level of goods they carry.
Each UN Bag should carry the UN-Symbol mentioned in the below table which shall imply the hazard level of the product (insert table).
Bags used for packing hazardous goods can only be made after obtaining a UN certificate issued by an authorised and notified laboratory.