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There
are many types of Right-To-Know sign and label designs used
to inform employees of chemical hazards. The most popular
RTK signs and labels use a number rating and color coding
system in conjunction with text to identify the chemical and
its physical and health hazards.
The National Fire Protection Association's (NFPA) Standard
System for the Identification of the Fire Hazards of Materials
is an example of a number and color coding system.
The NFPA Diamond uses color codes to identify Health risks
(in blue), Flammability (in red), Instability (in yellow),
and Special Hazards (in white). Numbers are used to rate the
severity of the hazard on a scale of 0 to 4. 4 represents
the most severe. 0 represents minimal or no danger.
For more detailed information about RTK labeling, please
see the RTK tutorial
or visit the RTK
Resource web site.
Next: Laboratory Warning
Signs >>

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This sign making guide is intended
for general information purposes only.
This guide is not a substitute for review of applicable government
regulations and standards.