Dangerous goods, refers to the flight safety, human health, property or environment to harm, and in the International Civil Aviation Organization (ICAO) issued the "dangerous goods transport aviation safety technical instructions" dangerous goods list specified in articles or substances or according to the "technical instruction" category.
According to the current valid international standards, namely the International Civil Aviation Organization "dangerous goods transport aviation safety technology instruction" and the International Air Transport Association (IATA) of the "rules" of dangerous goods, dangerous goods transportation activities according to their types can be divided into nine categories: 1, 2, 3 explosive; flammable gas; liquid and flammable solids; 4, combustible substances and water release gases; 5, oxidant and peroxide; 6, toxic and infectious substances; 7, radioactive substances; 8, corrosive substances; 9, miscellaneous dangerous goods. According to the degree of risk of dangerous goods, dangerous goods can be divided into passenger carrying dangerous goods, the machine can only cargo transport of dangerous goods, under normal circumstances, but in some countries it is prohibited to transport special exemption can carry dangerous goods, and transportation are prohibited in any case of dangerous goods.
Both the risk of all kinds of chemical products obviously these dangerous goods, are common in the daily life of the public is easy to overlook the dangers of items, such as perfume, medicine, automobile, electrical appliances, and through special means of preservation of aquatic products, and even some animal, fruit also has certain risk in special circumstances under the. With the continuous development of society, the types of dangerous goods are still increasing.