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Symbols & Labels

WHMIS logo and symbols | WHMIS labels and checklist | Other symbols and labels

Other symbols and labels

You will find these labels on products in and around your home. You will see them on paint thinners, drain cleaners, windshield washer fluid and different kinds of polish.

  • Transportation of Dangerous Goods (TDG) Labels

  • Labels and placards required for TDG. The following TDG symbols are available for your use. Right click on a symbol below to copy it to your clip board. Visit the TDG website for more information.

** Place for Division
* Compatability Group

CLASS 1: Explosives

  • 1.1 - A substance or article with a mass explosion hazard.
  • 1.2 - A substance or article with a fragment projection hazard, but not a mass explosion hazard.
  • 1.3 - A substance or article which has a fire hazard along with either a minor blast hazard or a minor projection hazard or both, but not a mass explosion hazard.


CLASS 1.4:

A substance or article which presents no significant hazard; explosion effects are largely confined to the package and no projection or fragments of appreciable size or range are to be expected.


CLASS 1.5:

A very insensitive substance which nevertheless has a mass explosion hazard like those substances in 1.1.


CLASS 1.6:

An extremely insensitive substance which does not have a mass explosion hazard. Commonly used in mining and construction operations (example: blasting agents).


CLASS 2.1: Flammable Gas

Commonly used as fuel (example: propane).


CLASS 2.2: Non-flammable, non-toxic gas.

Commonly used in food refrigeration (example: nitrogen).


CLASS 2.2 (5.1): Oxygen and oxidizing gases.


CLASS 2.3: Toxic Gas

Commonly used in pulp bleaching (example: sulphur dioxide).


CLASS 3: Flammable Liquids

A liquid which has a closed-cup flash point not greater than 60.5oC. Commonly used as fuel (example: gasoline, ethanol, fuel oil (diesel)).


CLASS 4.1: Flammable Solid

A solid that under normal conditions of transport is readily combustible, or would cause or contribute to fire through friction or from heat retained from manufacturing or processing, or is a self-reactive substance that is liable to undergo a strongly exothermic reaction, or is a desensitized explosive that is liable to explode if they are not diluted sufficiently to suppress their explosive properties. Commonly used in lacquers (example: napthalene).


CLASS 4.2: Spontaneously Combustible

A substance liable to spontaneous combustion, under normal conditions of transport, or when in contact with air, liable to spontaneous heating to the point where it ignites. Commonly used in rocket fuel (example: sodium hydrosulphite).


CLASS 4.3: Dangerous When Wet

A substance that, on contact with water, emits dangerous quantities of flammable gases or becomes spontaneously combustible on contact with water or water vapour. Commonly used in heat exchangers (valves) (example: sodium).


CLASS 5.1: Oxidizer

A substance which causes or contributes to the combustion of other material by yielding oxygen or other oxidizing substances whether or not the substance itself is combustible. Commonly used in fertilizers (example: ammonium nitrate).


CLASS 5.2: Organic Peroxide

An organic compound that contains the bivalent "-O-O-" structure which is a strong oxidizing agent and may be liable to explosive decomposition, be sensitive to heat, shock or friction or react dangerously with other dangerous goods Commonly used in automobile body shops as body filler (example: dibenzoyl peroxide).


CLASS 6: Toxic Substances and Infectious Substances

6.1 - A solid or liquid that is toxic through inhalation, by skin contact or by ingestion. Commonly used as a germicide or general disinfectant (example: phenol).


6.2 - Micro-organisms that are infectious or that are reasonably believed to be infectious to humans or animals. Commonly used in disease research (example: rabies virus).


CLASS 7: Radioactive Materials

Substances defined as Class 7, Radioactive Materials in the Packaging and Transport of Nuclear Substances Regulations. Commonly used in nuclear fuel rods (example: radioactive material - LSA (yellow cake)). There are three categories which indicate the surface radiation level for a package with Category I being the lowest level and Category III the highest.


CLASS 7: Radioactive Materials Category I


CLASS 7: Radioactive Materials Category II


CLASS 7: Radioactive Materials Category III


CLASS 8: Corrosives

A substance that causes destruction of skin or corrodes steel or non-clad aluminum. Commonly used in batteries and industrial cleaners (example: sulphuric acid and sodium hydroxide).


CLASS 9: Miscellaneous Products, Substances or Organisms

A substance that does not meet the criteria for inclusion in Classes 1 to 8. This includes genetically modified micro-organisms, marine pollutants, elevated temperature materials and environmentally hazardous substances. Used in dry cell batteries (example: ammonium chloride).

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