Whmis classification symbols

WHMIS Classification Symbols

Controlled products are divided into six classes; all have a distinctive hazard symbol assigned to assist in identifying the associated
Safe Handling Measures
Any product that is normally a gas at room  Keep container closed tightly and ensure valves Compressed
temperature and kept in a container under  If ruptured or broken may rocket or torpedo  Keep from heat or changes in temperature.  Must be secured and may require flashback  Liquefied compressed gas can cause severe Includes any solid, liquid or gas that will burn.  Keep away from heat or sources of ignition Flammable &
 May burn at relatively low temperatures Combustible
 May burst into flame spontaneously when in  Avoid static discharges or impacts that could Material
 May release flammable gas when in contact  May cause a fire if exposed to heat, sparks, Oxidizers cause other substances to burn or Oxidizing
continue to burn because they release oxygen. Material
Oxidizers will not usually catch fire by  Keep away from flammable and combustible  May cause a fire if it contacts combustibles  May react violently or cause an explosion if it contacts flammable substances, such as fuels. These materials are highly poisonous and Material
immediately dangerous to life. The effects are  Wear suitable personal protective equipment Immediate &
 May be fatal or cause permanent damage if it Serious Toxic
enters the body through the skin, is inhaled Examples: hydrogen sulphide, strychnine, cyanide Class D2 Materials in this class are toxic, but their effects Material
are not immediate but likely to harm you in Causing Other
 Wear suitable personal protective equipment Toxic Effects
 May cause death if repeatedly exposed  Wash hands thoroughly after using these  May sensitize certain people and cause  May cause cancer, birth defects and sterility These materials are organisms (and the toxins Biohazardous
of organisms) that cause disease in persons  Wear suitable protective equipment and clothing Infectious
and animals. They are germs – bacteria,  Seek medical attention if you feel ill Materials
viruses, fungi, etc. They also include cultures, containing or suspected of containing such These materials effects are permanent. Acids Corrosive
and bases are corrosive. Most corrosives are  Use recommended respiratory protective liquids but can be gases such as chlorine.  Causes sever eye and skin irritation upon  Causes severe tissue damage with long term This includes a wide variety of chemicals that Dangerously
 May react with water to release toxic or  May explode if subjected to shock, friction or  Extremely reactive if it is stored for a long

Source: http://as26206.http.sasm3.net/hr/hse/assets/docs/pdf/Laboratory%20Safety/WHMIS%20Classification%20Symbols.pdf


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