The Emergency Response Guide (ERG) is a guide for first responders during the initial phase of a dangerous goods or hazardous materials incident. Remember, never attempt to handle a material or chemical that you are not qualified to handle. "When in doubt, get out". Search the ERG by material name or material ID number. Example: "Chlorine" or "1017".
NFPA fire diamond
The NFPA (National Fire Protection Association) fire diamond is a symbol used to alert first responders to the hazards involved with a given material. The fire diamond is based on standards listed in the NFPA document: "Standard System for the Identification of the Hazards of Materials for Emergency Response" and is designed to be easily understood.
The fire diamond consists of 4 color-coded quadrants:
on the top indicating fire hazard.
on the left indicating health hazard.
on the right indicating chemical instability hazard.
on the bottom indicating special hazards.
Fire, health, and instability hazards are rated on a scale from 0 (no hazard) to 4 (severe hazard). Special hazards are listed by symbols specific to the material.
Can cause death or serious injury
Ignites below 73°F
May explode at normal temperatures and pressures
Can cause serious or permanent injury
Ignites below 100°F
May explode at high temperature or shock
Can cause temporary incapacitation or residual injury
Ignites below 200°F
Violent chemical change at high temperatures and pressures
Can cause significant irritation
Ignites above 200°F
Unstable at high temperatures
Poses no health hazard
Will not burn