WHMIS Classification Flashcards

Questions and Answers

What are the WHMIS hazard groups?

Health (correct)

Physical (correct)

Chemical

Environmental (correct)

WHMIS hazard classes only include Physical hazards.

False

What is a physical hazard?

Flammable, Oxidizing, Gases under pressure, Self-reactive substances, Organic peroxides, Corrosive, Pyrophoric, Combustible, Asphyxiants.

What constitutes a health hazard?

Acute toxicity, Skin irritation, Serious eye damage, Respiratory or skin sensitization, Germ cell mutagenicity, Reproductive toxicity, Organ toxicity, Aspiration hazard, Biohazardous infectious. Signup and view all the answers

What is a hazard category?

Used to show how hazardous a product is, with each class having categories that detail severity. Signup and view all the answers

What does Class A - Compressed Gases refer to?

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What is the difference between flammable and combustible materials in Class B?

Flammable materials burn at normal temperatures while combustible materials must be heated before they catch fire. Signup and view all the answers

What does Class C - Oxidizing Material do?

Helps fires by providing more oxygen or causes normally non-flammable materials to catch fire. Signup and view all the answers

What characterizes Class D-1 materials?

Poisons that can cause immediate and serious effects, including death from single exposure. Signup and view all the answers

What health effects do Class D-2 materials cause?

Causes immediate skin/eye irritation or long-term health problems such as carcinogenic effects. Signup and view all the answers

What is meant by Class D-3 materials?

Biohazardous infectious materials that include organisms or toxins causing diseases. Signup and view all the answers

What do Class E materials do?

Permanently corrode metals or burn human tissues. Signup and view all the answers

What characterizes Class F - Dangerously Reactive Material?

Reacts strongly with water, reacts with itself when shocked, heated, or pressurized, can polymerize or decompose. Signup and view all the answers

Study Notes

WHMIS Hazard Groups

WHMIS classifies hazards into three main groups: Physical, Health, and Environmental.

WHMIS Hazard Classes

Comprises two categories: Physical and Health hazards.

Physical Hazards

Include characteristics like flammability, oxidizing potential, gases under pressure, self-reactive substances, organic peroxides, corrosives, pyrophorics, combustibles, and asphyxiants.

Health Hazards

Represented by risks such as acute toxicity, skin irritation, serious eye damage, respiratory or skin sensitization, germ cell mutagenicity, reproductive toxicity, organ toxicity, aspiration hazards, and biohazardous infectious materials.

Hazard Categories

Indicate the level of hazard associated with a product. Each class consists of multiple categories (e.g., 1, 2, 3), with category 1 denoting the most severe level.

Class A - Compressed Gases

Includes gases that are stored under pressure.

Class B - Flammable and Combustible Materials

Flammable materials ignite at normal temperatures, while combustible materials require heating before combustion occurs.

Class C - Oxidizing Materials

These do not burn alone but enhance combustion by supplying additional oxygen or may ignite other materials.

Class D-1 - Poisonous and Infectious Material (Immediate Effects)

Comprises poisons that are toxic or very toxic, capable of causing death from a single exposure.

Class D-2 - Poisonous and Infectious Material (Other Toxic Effects)

Includes substances causing immediate skin or eye irritation as well as long-term health effects, such as carcinogens, mutagens, and reproductive toxins.

Class D-3 - Biohazardous Infectious Material

Covers organisms or toxins causing diseases, including bacteria, viruses, fungi, and parasites. Biohazard materials derived from these organisms fall under risk groups I to IV.

Class E - Corrosive Materials

Capable of causing permanent corrosion to metals or burns on human tissues.

Class F - Dangerously Reactive Materials

Exhibit traits such as reacting violently with water to produce toxic gases, self-reacting under shock, heat, or pressure, and having tendencies to polymerize, decompose, or lose water under certain conditions.

Description

Test your knowledge on WHMIS hazard groups and classes with these flashcards. Learn about various physical and health hazards, including their definitions and examples. Ideal for those seeking to understand workplace safety regulations.