Hazardous Material Incident (HAZ-MAT)

Question 1

There are three systems for the identification of hazardous materials.

Answer 1

1. National Fire Protection Association (NFPA) 704M sign, which may be used at fixed-site buildings and storage tanks.
2. Hazardous Material Information System (HMIS) which may be used on storage vessels and container.
3. U.S. Department of Transportation (DOT) system which is used during transportation of hazardous materials by highway, rail, air, and vessel.

Question 2

NFPA and HMIS systems use numbers and colors to identify and rate risks. There are four categories and five levels of risk. They are:

Answer 2

1. Health hazard (Blue)
2. Fire Hazard (Red)
3. Reactivity (Yellow)
4. Specific Hazard (White Color)

Question 3

Health Hazard (Blue) has five levels of risk which are:

Answer 3

Level 0 - Normal Material
Level 1 - Slightly Hazardous
Level 2 - Hazardous 
Level 3 - Extreme Danger
Level 4 Deadly

Question 4

Fire Hazard (Red) has five levels of risk which are:

Answer 4

Level 0 - will not burn
Level 1 - must be preheated to burn (flash point above 200○ F)
Level 2 - ignites when moderately heated (Flash point between 100○ and 200○)
Level 3 - ignites at normal temperatures (flash point: below 100○)
Level 4 - extremely flammable (flash point: below 73○)

Question 5

Reactivity (Yellow) has five levels of risk which are:

Answer 5

Level 0 - Stable
Level 1 - unstable if heated
Level 2 - violent chemical change
Level 3 - shock and heat may detonate
Level 4 May detonate

Question 6

Specific Hazard (White) has five levels of risk which are:

Answer 6

(1) Acid
(2) Alkali (ALK)
(3) Corrosive (COR)
(4) Oxidizer (OXY)
(5) Radioactive ☢️
(6) W No Water

Question 7

DOT system

Answer 7

Several thousand substnaces have been officiallly classified as hazardous materials, each of these materials has been assigned:
a unique 4 digit hazard identification
number known as the United
Nations(UN)/North American (NA) number; and
a classification number. There are nine
classification for hazardous materials.

Question 8

The nine classifications for hazardous materials are:

Answer 8

Class 1 - Explosive
Class 2 - Gases
Class 3 - Flammable and Combustible 
                Liquids
Class 4 - Flammable Solids
Class 5 - Oxidizers and Organic Peroxides
Class 6 - Poisons
Class 7 - Radioactive Materials
Class 8 - Corrosives
Class 9 - Other Regulated Material

Question 9

Assigned members responding to or encountering a potential hazardous materials incident will:

Answer 9

EVALUATE & ISOLATE

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