Scribd
Upload
120 views2 pages

Hazard Communication TBT

The document discusses the NFPA hazard rating system, which is a standard put forth by the National Fire Prevention Association to provide hazard information to emergency personnel. The system uses a diamond-shaped sign with four colored sections (blue, red, yellow, and white) that each rate a specific hazard from 0-4. The blue section rates health hazard, red rates flammability, yellow rates instability, and white can indicate special hazards. The system is intended to clearly communicate hazardous material risks.

Uploaded by

Tomin Thomas
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
120 views2 pages

Hazard Communication TBT

The document discusses the NFPA hazard rating system, which is a standard put forth by the National Fire Prevention Association to provide hazard information to emergency personnel. The system uses a diamond-shaped sign with four colored sections (blue, red, yellow, and white) that each rate a specific hazard from 0-4. The blue section rates health hazard, red rates flammability, yellow rates instability, and white can indicate special hazards. The system is intended to clearly communicate hazardous material risks.

Uploaded by

Tomin Thomas
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
You are on page 1/ 2

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.

You might also like