NFPA Chemical Hazard LabelsNFPA Rating (optional) - The National Fire Protection Association (NFPA) has developed a system for indicating the health, flammability and reactivity hazards of chemicals. In addition, a special precaution symbol may be used where necessary. Click on a section of the diamond for more specific information,
or scroll down the page for some general information. Rating Summary
Health (Blue) 4 | Danger | May be fatal on short exposure. Specialized protective equipment required | 3 | Warning | Corrosive or toxic. Avoid skin contact or inhalation | 2 | Warning | May be harmful if inhaled or absorbed | 1 | Caution | May be irritating | 0 | | No unusual hazard |
Flammability (Red) 4 | Danger | Flammable gas or extremely flammable liquid | 3 | Warning | Flammable liquid flash point below 100° F | 2 | Caution | Combustible liquid flash point of 100° to 200° F | 1 | | Combustible if heated | 0 | | Not combustible |
Reactivity (Yellow) 4 | Danger | Explosive material at room temperature | 3 | Danger | May be explosive if shocked, heated under confinement or mixed with water | 2 | Warning | Unstable or may react violently if mixed with water | 1 | Caution | May react if heated or mixed with water but not violently | 0 | Stable | Not reactive when mixed with water |
Special Notice Key (White) W | Water Reactive | Oxy | Oxidizing Agent |
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