Health hazardsymbol

In addition to the specific hazards identified by the flame over circle pictogram, it is important to remember that the product may have other hazards, for example:

Hazard symbols and meanings

The symbol within the pictogram shows an “o” with flames on top of it and a line underneath it. The “o” is for oxygen, and the flames indicate that hazardous products with this pictogram present a fire or explosion hazard if they are not stored and handled properly.

Although every effort is made to ensure the accuracy, currency and completeness of the information, CCOHS does not guarantee, warrant, represent or undertake that the information provided is correct, accurate or current. CCOHS is not liable for any loss, claim, or demand arising directly or indirectly from any use or reliance upon the information.

Corrosivesymbol

WHMIS labels and safety data sheets are required for all hazardous products in the workplace. Before using these products, workers need to be educated on WHMIS, which was amended in December 2022.

The three oxidizer hazard classes have different physical states, but all pose fire or explosion hazards if appropriate handling and storage precautions are not followed.

The basic components of a fire are a source of fuel (such as combustible materials), a source of oxygen, and a spark or other source of ignition. With most fires, the source of oxygen is air (air has about 21% oxygen). Oxidizing solids, liquids or gases readily release oxygen or another oxidizing substance (such as bromine, chlorine, or fluorine). Therefore, these products pose a severe fire hazard. Oxidizers do not burn themselves, but oxidizers can: