What 4 hazards are classified on the NFPA 704 diamond?

The National Fire Association (NFPA) has developed a color-coded number system called NFPA 704. The system uses a color-coded diamond with four quadrants in which numbers are used in the upper three quadrants to signal the degree of health hazard (blue), flammability hazard (red), and reactivity hazard (yellow).

What are the four categories embodied in NFPA 704?

The four divisions are typically color-coded with red on top indicating flammability, blue on the left indicating level of health hazard, yellow on the right for chemical reactivity, and white containing codes for special hazards.

What are the 4 hazard categories?

Physical Hazards

Hazard Class Associated Hazard Category
Gases under pressure 4 Groups include: Compressed gas, Liquefied gas, Dissolved gas, and Refrigerated liquefied gas
Flammable liquids Categories 1 – 4
Flammable solids Categories 1 and 2
Self-reactive substances Types A-G

What does it mean when the NFPA health hazard rating is 4?

Level 4 – Materials that can affect health or cause serious injury, during periods of very short exposure, even though prompt medical treatment is given. Level 3 – Materials that can affect health or cause serious injury, during periods of short exposure, even though prompt medical treatment is give.

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What does Level 4 flammability hazards indicate?

Risk level 4: Very flammable gases or very volatile flammable liquids. Shut off flow and keep cooling water streams on exposed tanks or containers. Risk level 3: Materials that can be ignited under almost all normal temperature conditions. Water may be ineffective because of the low flash point.

What is full form of NFPA?

National Fire Protection Association (NFPA) is a United States trade association established in 1896, is to reduce the worldwide burden of fire and other hazards on the quality of life by providing and advocating consensus codes and standards, research, training, and education.

Which number indicates most severe hazard?

0-4 0-least hazardous 4-most hazardous 1-4 1-most severe hazard 4-least severe hazard • The Hazard category numbers are NOT required to be on labels but are required on SDSs in Section 2. Numbers are used to CLASSIFY hazards to determine what label information is required.

What are the 3 major hazard groups?

Hazard group – While not given a formal definition, GHS divides hazards into three major groups – health, physical and environmental.

What are the 3 classification of hazard?

All hazards are assessed and categorized into three groups: biological, chemical and physical hazards.

What are the 9 DOT hazard classes?

A visor card guide for state and local law enforcement officials illustrating vehicle placarding and signage for the following nine classes of hazardous materials: 1) Explosives, 2) Gases, 3) Flammable Liquid and Combustible Liquid, 4) Flammable Solid, Spontanaeously Combustible and Dangerous When Wet 5) Oxidizer and …

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What is the NFPA rating for health?

NFPA 704 rating system is a standard system developed by the U.S.-based National Fire Protection Association (NFPA) for indicating the health, flammability, reactivity and special hazards for many hazardous chemicals through the use of the NFPA 704 Diamond.

What is the highest severity level for the NFPA diamond hazard system?

Number System: NFPA Rating and OSHA’s Classification System 0-4 0-least hazardous 4-most hazardous 1-4 1-most severe hazard 4-least severe hazard • The Hazard category numbers are NOT required to be on labels but are required on SDSs in Section 2.

What does the NFPA diamond tell you?

The system addresses the health, flammability, instability, and special hazards presented from short-term, acute exposures that could occur as a result of a fire, spill, or similar emergency.

What are the four colors of the risk diamond?

The system uses a color-coded diamond with four quadrants in which numbers are used in the upper three quadrants to signal the degree of health hazard (blue), flammability hazard (red), and reactivity hazard (yellow).

Fire safety