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Hazard Communication

The document discusses the NFPA hazard rating system, which includes three color codes - blue, red, and yellow - that correspond to health, fire, and instability hazards. Each color section has a numerical rating from 0-4 to indicate the level of hazard, with 4 being the highest. The white section indicates special hazards like materials that react explosively to water. The NFPA standard defines the signage needed to alert personnel of hazardous materials and their ratings.

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Tomin Thomas
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188 views2 pages

Hazard Communication

The document discusses the NFPA hazard rating system, which includes three color codes - blue, red, and yellow - that correspond to health, fire, and instability hazards. Each color section has a numerical rating from 0-4 to indicate the level of hazard, with 4 being the highest. The white section indicates special hazards like materials that react explosively to water. The NFPA standard defines the signage needed to alert personnel of hazardous materials and their ratings.

Uploaded by

Tomin Thomas
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as DOCX, PDF, TXT or read online on Scribd
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TOOLBOX TALK

Topic: HAZARD COMMUNICATION

What does the NFPA hazard rating system mean?


The NFPA hazard rating system refers to, in part, a safety standard put forth by the National Fire
Prevention Association (NFPA). This standard, NFPA 704, outlines a hazard rating system for emergency
personnel.
The NFPA 704 standard also defines the necessary signage and information that needs to be displayed
to alert personnel of the type of hazardous materials that are present. This NFPA hazard rating system
includes three color codes and five intensity levels.
Each color code (blue, red, and yellow) of the hazard rating system corresponds to a hazard: health, fire, and
instability (denotation or chemical change). Within each colored section, a numerical rating is given to the
hazard. The ratings range from 0 to 4. A rating of 4 is the highest. If a 4 is in the red section of the hazard
rating system, then the material should be considered highly flammable and therefore dangerous.
Within the NFPA hazard rating system, there is also a white colored section. This section
is often left blank, but if a hazardous material presents a special hazard, such as a material that reacts
explosively to water, then this section would be used.
TOOLBOX TALK
Topic: HAZARD COMMUNICATION
There are only two symbols that are officially part of the NFPA hazard rating system for
use in the special hazard section, with one additional symbol for simple asphyxiant gases
that is recognized. Other additional symbols can be added by the end-user, and placed
outside the NFPA diamond.

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