Organic peroxides can be identified from specific labelling under both the transportation of hazardous materials regulations and the Classification, labelling and packaging (CLP) regulations.
The symbols that may be seen in relation to organic peroxides are:
In other cases, an external ignition source would be required. Even in this type of fire, a source of oxygen is directly available to the fuel from the oxidising agent, resulting in a more intense fire.
The symbols that may be seen in relation to oxidising materials that are not organic peroxides are:
For detailed information on classification and labelling see Foundation for Hazardous Materials