中国
美国
英国
联合国危险货物编号(UN)
UN危险货物分类
联合国还有一套危险货物分类与编号配合，用于识别危险品所属的类别和项别。比方说，丙烯酰胺属6.1项，打火机属2.1项。如果一种物质具有多种危险，那么在主分类之外还需要列出补充分类。
联合国危险货物运输标志 Symbols of the United Nations CommiTTee for the Transport of Dangerous Goods | ||
爆炸品 UN Transport symbol for explosives |
不产生重大危害的爆炸品 UN Transport symbol for Class 1.4 Explosive substances which present no significant hazard |
具有大规模爆炸性，但极不敏感的物品 UN Transport symbol for Class 1.5 Very insensitive substances which have a mass explosion hazard |
 不燃气体UN Transport symbol for non-inflammable gases |  易燃气体UN Transport symbol for inflammable gases |  有毒物品（第2类和第6.1类）UN Transport symbol for poisonous substances (gases Class 2., other poisonous substances Class 6.1) |
 易燃气体（第2类）或者易燃液体（第3类）UN Transport symbol for inflammable gases (Class 2) or liquids (Class 3) |  易燃固体（第4类）UN Transport symbol for inflammable solids (Class 4) |  易自燃物品UN Transport symbol for substances liable to spontaneous combustion |
 遇水释放出易燃气体的物品UN Transport symbol for substances which, in contact with water, emit inflammable gases |  氧化剂和有机过氧化物UN Transport symbol for oxidizing substances and for organic peroxiDES |  感染性物品UN Transport symbol for infectious substances |
 放射性物品（第I级）UN Transport symbol for radioactive substances, Category I |  放射性物品（第II级）UN Transport symbol for radioactive substances, Category II |  放射性物品（第III级）UN Transport symbol for radioactive substances, Category III |
 放射性物品UN Transport symbol for radioactive substances |
腐蚀性物品 |
危险性类别编号的位置：** |
