These bags are designed to handle products that the United Nations considers hazardous material.
The international transport of dangerous goods in Bulk Bags is 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, fiberboard and wooden. There are four types of FIBCs made from woven polypropylene for dangerous goods:
Below mentioned Capital letters designate the packing group(s) for which the design type has been approved: