Adr rid意思imdg

"ADR" stands for "Agreement on Dangerous Goods Transport by Road" or "European Agreement concerning the International Carriage of Dangerous Goods by Road." It is a United Nations treaty that governs the international transportation of dangerous goods by road.

"RID" stands for "Regulation concerning the International Carriage of Dangerous Goods by Rail." It is a set of regulations that govern the transportation of dangerous goods by rail.

"IMDG" stands for "International Maritime Dangerous Goods." It is a set of regulations that govern the transportation of dangerous goods by sea.

These are all different sets of regulations that apply to the transportation of dangerous goods, but they are not interchangeable. Each set of regulations applies to a different mode of transportation (road, rail, or sea) and may have different requirements for the packaging, labeling, and documentation of dangerous goods.