WHMIS Symbols and Classes Flashcards

Study Notes

WHMIS Overview

WHMIS stands for Workplace Hazardous Material Information System.
It is a comprehensive communication system for hazardous materials in Canadian workplaces.

Class A: Compressed Gas

Symbol represents materials under pressure that can explode or cause threats when released.
Common examples include gas cylinders and aerosol cans.

Class B: Flammable and Combustible Material

Symbol indicates materials that can ignite easily and burn rapidly.
Includes liquids, gases, and solids; examples are gasoline and propane.

Class C: Oxidizing Material

Symbol signifies substances that can cause or enhance fire by producing oxygen.
Examples include hydrogen peroxide and bleach.

Class D: Poisonous and Infectious Material

Symbol represents materials that can cause immediate and serious health effects.
Subclass includes:
- Immediate effects causing severe reactions (Class D, Division 1).
- Materials causing long-term health issues (Class D, Division 2).

Class D: Other Toxic Effects

Symbol signifies materials causing non-infectious and less immediate health risks.
Includes substances that can cause chronic health problems or environmental concerns.

Class D: Biohazardous and Infectious Material

Symbol highlights materials that pose a risk of infection or biological hazards.
Common examples include medical waste and laboratory samples.

Class E: Corrosive Material

Symbol indicates substances that can corrode metals or damage skin and eyes.
Examples include sulfuric acid and sodium hydroxide.

Class F: Dangerously Reactive Material

Symbol represents materials that can undergo violent chemical reactions under certain conditions.
Examples include organic peroxides and certain metal powders.

Description

Test your knowledge of WHMIS symbols and classes with these flashcards. Learn about the meanings behind various hazardous material symbols, including compressed gas, flammable materials, and more. Perfect for anyone studying workplace safety protocols.