PAE: Classifying Hazardous Substances

According to the Occupational Safety and Health Administration (OSHA), health hazards fall into four categories. Match each category with the correct examples.

• Physical hazards

• infectious diseases

• Ergonomic risk factors

• heavy lifting, repetitive motions and vibration

• Chemical hazards

• noise, radiation, heat

• Biological hazards

• solvents, adhesives, paints, toxic dusts

What does the classification diamond include?

• Health Hazards, Fire Hazards, Instability/Reactivity Hazards, Specific Hazards

• Chemical Hazards, Physical Hazards, Biological Hazards, Ergonomic Hazards

• Health Hazards, Environmental Hazards, Fire Hazards, Specific Hazards

• Chemical Hazards, Fire Hazards, Instability/Reactivity Hazards, Specific Hazards.

Fill in the blank: Hazardous materials and hazardous wastes can be harmful, however, hazardous wastes specifically refer to ________ which are often byproducts of another process.

• Liquid waste

• Solid waste

• Gaseous waste

• Chemical waste

Fill in the blank: The classification sign helps identify the specific risks from any substance. The top three quadrants contain a number describing the severity of the hazard; the higher the number, the more ________.

• Safe

• Dangerous

• Stable

• Common

What does the number '3' in the blue section of the hazard diamond indicate?

• Normal Material

• Slightly Hazardous

• Extreme Danger

• Deadly

Which color in the hazard diamond represents fire hazard?

• Blue

• Red

• Yellow

• White

Which number in the blue section of the hazard diamond indicates a normal material?

• 0

• 1

• 2

• 3

What does the symbol of a W with a line through it in the white section of the hazard diamond mean?

• Acid

• Use no water

• Corrosive

• Radiation Hazard

Which symbol represents a corrosive substance?

• Explosives

• Corrosive substance

• Flammable

• Toxic

Fill in the blank: The symbol with a flame over a circle represents an _______ substance.

• Explosive

• Oxidizing

• Toxic

• Harmful