Dangerous Goods by Air, DownloadsClassification of Infectious Substances Skip to main content Knowledge Database < All Topics Main Downloads Classification of Infectious Substances Posted8 July 2022 ByORP DG PRO Categories Chemical Awareness 7 Chemical Storage and Handling 10 Dangerous Goods Training 7 Dangerous Goods by Air 7 Dangerous Goods by Sea 1 Dangerous Goods by Road 1 Dangerous Goods and Chemical Regulations 7 Workplace Chemical Safety 6 Downloads 7 ORP DG PRO Shipper’s Declaration for Dangerous Goods (DGD) – Air What are dangerous goods?