WHMIS Symbols

Question 1

Compressed Gas

Answer 1

Class A - a material that is a gas at normal room temp and pressure. eg: hairspray/propane tank

Question 2

Flammable and Combustible Material

Answer 2

Class B - can catch fire easily at or just above normal room temp and continue to burn. eg: spray paint.

Question 3

Oxidizing Material

Answer 3

Class C - can decompose readily to release oxygen or another oxidizing substance.

Question 4

Poisonous and Infectious Materials

Answer 4

Class D - material can cause harmful health effects. Immediate death. Division 1. eg: furniture polish, bleach, rat poison.

Question 5

Materials Causing Other Toxic Effects

Answer 5

Class D - causes a wide range of harmful effects, toxic effects after prolonged exposure. Division 2.

Question 6

Biohazardous and Infectious Materials

Answer 6

Class D - organisms such as bacteria, viruses, fungi, and parasites that can cause diseases and or death. Division 3. eg : raw meat.

Question 7

Corrosive Material

Answer 7

Class E - can cause severe burns and possibly permanent damage to human tissues. Can attack or corrode metals. eg: oven cleaner, batteries.

Question 8

Dangerously Reactive Material

Answer 8

Class F - unstable or highly reactive materials that can undergo extremely hazardous uncontrolled reactions.