ABC of Safety in the Biological Sciences
| CLASS 1 EXPLOSIVES |
| CLASS 2 GASES (compressed, liquefied or dissolved under pressure). |
| CLASS 3 FLAMMABLE LIQUIDS |
| 3.1 Liquids with a flashpoint below 23oC. |
| 3.2 Liquids with a flashpoint above 23oC and below 61oC. |
| CLASS 4 FLAMMABLE SOLIDS |
| 4.1 Solids easily ignited by external sources such as a spark or flame. |
| 4.2 Spontaneously flammable substances. |
| 4.3 Substances flammable if wet. |
| CLASS 5 OXIDISING AGENTS AND ORGANIC PEROXIDES |
| 5.1 Oxidising agents. |
| 5.2 Organic peroxides. |
| CLASS 6 POISONOUS (TOXIC) AND INFECTIOUS SUBSTANCES |
| 6.1 Poisonous (toxic) substances. |
| 6.2 Infectious substances. |
| CLASS 7 RADIOACTIVE SUBSTANCES |
| CLASS 8 CORROSIVES |
| CLASS 9 MISCELLANEOUS DANGEROUS SUBSTANCES |
Table 14: Classification of dangerous goods
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