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The symbol within the pictogram shows an exploding bomb. Products with this pictogram present severe fire and explosion hazards. Significant injury and property damage could result from incidents involving these products.
Products with this pictogram are not commonly used because of their severe hazards. When used, they must be handled and stored in stringently controlled conditions. Specialized training and supervision are required.
NOTE: The Explosives hazard class has not been implemented in WHMIS 2015. In Canada, explosives are regulated under the Explosives Act. Provision of information about the hazards, and the safe handling and storage and emergency procedures for explosives is beyond the scope of this document.
This pictogram is used for two WHMIS 2015 physical hazard classes:
*For these hazard classes, Type B is assigned two pictograms – the exploding bomb and the flame. Types C, D, E, and F are assigned the flame pictogram. Refer to How to Work Safely with - Hazardous Products Using the "Flame" Pictogram for information on Types C, D, E and F of these hazard classes.
The Explosives hazard class has not been implemented in WHMIS 2015. However, you may see this hazard class identified on a safety data sheet or label. The Explosives hazard class is also assigned the exploding bomb pictogram and has the following categories:
Self-reactive substances and mixtures are sensitive to temperature and temperature changes. Heating (even slight heating), such as heating that may occur through improper handling or storage conditions, could result in a very hazardous situation.
Organic peroxides are highly reactive, and tend to ignite easily and burn rapidly. Organic peroxides are very unstable and are generally sensitive to light (e.g., have to be stored in darkness). Some are sensitive to temperature changes or friction (e.g., shaking or bumping of the container). Organic peroxides tend to react explosively with metals.
The WHMIS 2015 signal words and hazard statements for hazardous products with the exploding bomb pictogram are:
|Hazard Class and Category||Signal Word||Hazard Statement|
|Self-reactive substances and mixtures – Type A||Danger||Heating may cause an explosion|
|Self-reactive substances and mixtures – Type B||Danger||Heating may cause a fire or explosion|
|Organic peroxides – Type A||Danger||Heating may cause an explosion|
|Organic peroxides – Type B||Danger||Heating may cause a fire or explosion|
In addition to the specific hazards identified by the exploding bomb pictogram, it is important to remember that the product may have other hazards, for example:
These products may also be highly reactive with many other materials – check Section 10 (Stability and Reactivity) of the Safety Data Sheet (SDS) for incompatible materials.