National Fire Protection Association (NFPA)
The National Fire Protection Association (NFPA) hazard identification system uses a color-coded diamond to represent four different hazards. The different colors represent three different types of hazard that may be associated with chemicals:
Blue indicates health hazard.
Red indicates flammability.
Yellow indicates reactivity.
White represents other hazards such as
if a chemical reacts violently with water ( )
or is an oxidizer ( ).
0 = no or minimal hazard
1 = slight hazard
2 = moderate hazard
3 = serious hazard
4 = extreme hazard
NFPA Hazard Rating Information for Common Chemicals
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