- The blue section represents Health Hazard, with ratings from 0 to 4 indicating increasing severity of health risks, from no hazard to potentially lethal.
- The red section indicates Flammability Hazard, rated 0 to 4, where 0 means will not burn and 4 means will vaporize and readily burn at normal temperatures.
- The yellow section shows Instability Hazard, rated 0 to 4, describing the chemical’s tendency to explode or react violently, from stable (0) to may explode at normal temperatures and pressures (4).
- The white section in the bottom corner is for Special Hazards, using symbols like OX for oxidizing, SA for simple asphyxiants, and W for reacts violently or explosively with water.
Parent Tip: Review the logic above to help your child master the concept of printable nfpa signs.
