1. H M I S AND N F P A HAZARDOUS MATERIALS IDENTIFICATION SYSTEM
NATIONAL FIRE PROTECTION ASSOCIATION
SAFETY RATINGS

2. HMIS RATING HAZARD 0-4 Health Hazard Flammability Physical Hazard
Reactivity

3. 0 = minimal hazard 1 = slight hazard 2= moderate hazard
Health Hazard
0 = minimal hazard
1 = slight hazard
2= moderate hazard
3= serious hazard
4= severe hazard

4. NFPA Safety Diamond
FLAMMABILITY
HEALTH
REACTIVITY
SPECIAL

5. HEALTH
4 = Short exposure may cause death 3 2 1
0 = no health hazard

6. FLAMMABILITY
4 = will burn easily 3 2 1
0 = will not burn

7. INSTABILITY / REACTIVITY
4 = Can explode at normal temperatures 3 2 1
0 = Stable, even under exposure to fire

8. SPECIAL W = reacts with water in a dangerous or unusual way
OX or OXY = oxidizer, can support a flame
SA =asphyxiant gas