Introduction

Question 0

What does the symbol “compressed gas” mean and what does it look like?

Answer 0

Appearance: hollow cylinder

• explosion danger due to high pressure of gas
• may explode if container is heated
• may cause container to explode if dropped

Question 1

What does WHMIS stand for?

Answer 1

Workplace Hazardous Materials Information System

Question 2

What does the symbol “combustible and flammable material” stand for and what does it look like?

Answer 2

Appearance: flame

• substance will burn and is a fire hazard
• may ignite spontaneously with air or release flammable gas on contact with water

Question 3

What does the symbol “oxidizing material” stand for and what does it’s symbol look like?

Answer 3

Appearance: ‘O’ in flames

• may react violently or cause explosion when in contact with combustible materials
• may burn skin and eyes upon contact

Question 4

What does “poisonous-immediate toxic effects” symbol stand for and what does it look like?

Answer 4

Appearance: skull and crossbones

• is a potentially fatal poison
• may be immediately fatal or cause permanent damage if inhaled or swallowed or enters body through skin contact

Question 5

What does “poisonous- other toxic effects” symbol stand for and what does it look like?

Answer 5

Appearance: ‘T’ exclamation mark

• is a poisonous substance not immediately hazardous to health
• may cause death or permanent damage from repeated exposure
• may be an irritant

Question 6

What does “biohazardous infectious material” symbol stand for and what does it look like?

Answer 6

Appearance: biohazard symbol

• may cause serious disease resulting in illness or death
• may produce a toxin harmful to humans

Question 7

What does “corrosive material” symbol stand for and what does it look like?

Answer 7

Appearance: hand and surface being corroded

• causes severe irritation upon contact
• causes severe tissue damage with prolonged contact
• may be harmful if inhaled

Question 8

What does “dangerously reactive material” symbol stand for and what does it look like?

Answer 8

Appearance: ‘R’ encasing test tube

• is very unstable
• may react with water to produce flammable gas
• may explode due to energy change
• may explode if heated in closed container